TDK-Lambda RTW Series User manual

・All specifications are subject to change without notice.
RTW 05-60R □
RTW SERIES
■ Product Line up
Ultra-thin
Enclosed / Unit type
■ Applications
Y
E
A
R
S
warranty
5
■ Model-naming method
Symbol of shape/variation
50W, 100W, 150W
None: without cover
C: with cover
L: type L
(terminal block facing upward, without cover)
300W
H:
with cover (terminal block facing upward)
L: type L (terminal block facing upward, without cover)
Maximum output current (examples)
60R: 60A
4R3: 4.3A
2R1: 2.1A
Nominal output voltage
03: 3.3V 15: 15V
05: 5V 24: 24V
12: 12V 48: 48V
Series name
UL62368-1
CSA62368-1
Low Voltage Directive
EN62368-1
Electrical Appliance
and Material Safet
y
Law
DENAN
Built to meet
50W 100W
Output voltage Output current Without cover With cover Type L Output current Without cover With cover Type L
3.3VDC
5VDC
12VDC
15VDC
24VDC
28VDC
48VDC
■ Conformity to RoHS Directive
■ Features
U2/U1( epyt mils-repus ,tupni elbacilppa-ediwdlroW ●
rack size)
● Meeting the standard of the harmonics current lim-
iter EN61000-3-2
●
●
11/8/6/5/4/3/2-4-00016NE htiw gniylpmoc dradnats SME
● Complying with radiation noise and conduction
noise regulations FCC-B and VCCI-B
●
Remote On/Off function incorporated (use and nonuse
can be switched by the internal switch)
● Electrolytic capacitor lifetime: 60,000H or over
150W 300W
Output voltage Output current Without cover With cover Type L Output current With cover Type L
Approved by safety standards, CE marking appli-
cable
12.5A
10A
4.3A
3.5A
2.2A
1.8A
1.1A
3.3VDC
5VDC
12VDC
15VDC
24VDC
28VDC
48VDC
35A
30A
12.5A
10A
6.3A
5.4A
3.2A
70A
60A
25A
20A
13A
11A
6.5A
RTW03-35RC
RTW05-30RC
RTW12-12RC
RTW15-10RC
RTW24-6R3C
RTW28-5R4C
RTW48-3R2C
RTW03-70RH
RTW05-60RH
RTW12-25RH
RTW15-20RH
RTW24-13RH
RTW28-11RH
RTW48-6R5H
RTW03-70RL
RTW05-60RL
RTW12-25RL
RTW15-20RL
RTW24-13RL
RTW28-11RL
RTW48-6R5L
RTW03-35RL
RTW05-30RL
RTW12-12RL
RTW15-10RL
RTW24-6R3L
RTW28-5R4L
RTW48-3R2L
RTW03-35R
RTW05-30R
RTW12-12R
RTW15-10R
RTW24-6R3
RTW28-5R4
RTW48-3R2
RTW03-12R
RTW03-12R
RTW12-4R3
RTW15-3R5
RTW24-2R2
RTW28-1R8
RTW48-1R1
RTW03-12RC
RTW03-12RC
RTW12-4R3C
RTW15-3R5C
RTW24-2R2C
RTW28-1R8C
RTW48-1R1C
RTW03-12RL
RTW03-12RL
RTW12-4R3L
RTW15-3R5L
RTW24-2R2L
RTW28-1R8L
RTW48-1R1L
25A
20A
8.4A
6.7A
4.2A
3.6A
2.1A
RTW03-25R
RTW03-25R
RTW12-8R4
RTW15-6R7
RTW24-4R2
RTW28-3R6
RTW48-2R1
RTW03-25RC
RTW03-25RC
RTW12-8R4C
RTW15-6R7C
RTW24-4R2C
RTW28-3R6C
RTW48-2R1C
RTW03-25RL
RTW03-25RL
RTW12-8R4L
RTW15-6R7L
RTW24-4R2L
RTW28-3R6L
RTW48-2R1L
1
ZHE

・All specifications are subject to change without notice.
ITEMS/UNITS MODEL
RTW03-12R RTW05-10R RTW12-4R3 RTW15-3R5 RTW24-2R2 RTW28-1R8 RTW48-1R1
Input
Voltage Range (Nominal: 100-240VAC) V AC85-265
Frequency
(Nominal: 50-60 single phase) Hz 47-66
Power Factor (100/240VAC)(typ) 0.99/0.94
Efficiency (100VAC)(typ) ％28180857
Efficiency (200VAC)(typ) ％58382877
Current (100-120/200-240VAC) (max) A 0.7/0.4 (3.3V: 0.6/0.3)
Inrush Current (100/200VAC)(typ) (*1) A 14/28
Leakage Current (100/240VAC) (max) mA 0.45/0.6
Output
Nominal Voltage
VDC 3.3 5 12 15 24 28 48
Maximum Current (*2) A 12.5 10 4.3 3.5 2.2 1.8 1.1
Maximum Power W 41.2 50 51.6 52.5 52.8 50.4 52.8
Maximum Line Regulation
(Within input voltage range) (max/typ)
0.2%/0.1%
Maximum Load Regulation
(0-100% load) (max/typ) 0.4%/0.2%
Temperature Coefficient
(Ambient temperature -10℃to +71℃) (max/typ)
％1.0/0.5
Warm Up Drift (max/typ) (*3) ％0.5/0.2
Max Power Total Regulation (max/typ) ％1.8/ 0.9
Maximum Ripple Voltage (max) (*4) mVp-p 80 100 150 200
Maximum Ripple & Noise (max) (*4) mVp-p 120 150 200 300
Start Up Time (100/240VAC)(typ) (*5) ms 400/200
Hold-up Time (100/240VAC)(typ) ms 55 30 35 30
Voltage Adjustable Range
VDC 2.6-4.0 4.0-5.8 9.6-13.2 12.0-16.5 19.2-26.4 22.4-30.8 38.4-52.8
Function
Over Current Protection (*6) A 13.2-15.6 10.5-12.5 4.5-5.4 3.68-4.38 2.3-2.75 1.9-2.25 1.15-1.38
Over Voltage Protection (*7)
VDC 4.2-5.2 6.0-6.9 13.7-15.7 17.0-19.0 27.0-30.5 32.0-35.0 55.0-60.0
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elbal iavAgnisneSetomeR
elbal iavA)8* (lor tnoCFFO/NOetomeR
elbal iavatoNnoi tarepOl e l laraP
e l bac i l ppAnoi tarepOse i reS
)DELneerg(elbal iavArotac idnInoi tarepO
elbal iavatoNega t l oVt up t uOe l ba i r aV
elbal iavatoNl ang i Sgn i r o t i noM
Environment
Operating Temperature ℃-10 to +71
Storage Temperature ℃-30 to +75
Operating Humidity
％RH 10-95 (the conditions of maximum 35°C in wet bulb temperature and non-condensation should be ensured.)
Storage Humidity ％RH 10-95 (the conditions of maximum 35°C in wet bulb temperature and non-condensation should be ensured.)
Vibration 5-10Hz, 10 minutes sweep, 10mmp-p total amplitude, 3 directions, 1h for each, in non-operation
10-200Hz, 10 minutes sweep, 19.6m/s² (2G) acceleration, 3 directions, 1h for each, in non-operation
Shock
Mounting A: 196m/s² (20G), Mounting B/C: 588m/s² (60G), 11 5ms, 3 directions, 3 times for each, in non-operation
Isolation
Withstand Voltage
For 1 minute at ordinary temperature and humidity
Between input terminal and ground terminal: 2.0kVAC, 10mA cutout current
Between input terminal and output terminal: 3.0kVAC, 10mA cutout current
Between output terminal and ground terminal: 500VAC, 20mA cutout current
Isolation Resistance
In 500VDC and 100MΩor over at ordinary temperature and humidity
Between input terminal and ground terminal, between input terminal and output terminal,
and between output terminal and ground terminal
Standards
Safety Standards
g n i y l pmoCCH F P with EN61000-3-2
EMI Complying with FCC-Class B / VCCI-Class B / EN55011-B / EN55032-B
Immunity Complying with EN61000-4-2 Level2, 3, -3 Level3, -4 Level3, -5 Level3, 4, -6 Level3, -8 Level4, -11
Mechanical
Weight
without cover / with cover / type L (max)
g 250/290/250
Size (W x H x D)
without cover / with cover / type L mm 22 x 82 x 124/22 x 82 x 124/22 x 82 x 134.5
Models of different
Detailed product name1 with cover RTW03-12RC RTW05-10RC RTW12-4R3C RTW15-3R5C RTW24-2R2C RTW28-1R8C RTW48-1R1C
Detailed product name2 type L RTW03-12RL RTW05-10RL RTW12-4R3L RTW15-3R5L RTW24-2R2L RTW28-1R8L RTW48-1R1L
With nominal input/output voltage, maximum output current, and Ta=25°C, if not specified separately.
(*1) In primary surge current, 25°C, and cold starting.
01 -neew t ebs ieu l avt ne r r uct up t uomumi xamehT) 2 * (
°C and +40°C. For use in outside this temperature range, derating is needed.
(*3) 30min to 8h after the start of input voltage application.
(*4) 1.5 times the value in 100MHz and at between -10°C and 0°C.
02-neewtebtagni t ratsdlocnI)5* ( °C and 0°C, lowering of output voltage can occur. It may take 3 seconds or so until the voltage becomes stable.
(*6) Fixed current reduction system and automatically resumes when the causes are removed.
(*7) Output voltage shutdown system and resumes by restarting input (approximately 30s interval).
(*8) Use and nonuse can be switched by the internal switch.
RTW50W Specifications
RTW 50W
Approved by UL62368-1, CSA62368-1, EN62368-1, UL60950-1, CSA60950-1, EN60950-1.
(Expire date of 60950-1: 20/12/2020) Designed to meet Den-an Appendix 8 at 100VAC only.
・All specifications are subject to change without notice.
15max. 124
Cover
Name plate
Cover
82
67.5±0.5
98.5±0.5 6
Mounting hole 2-M4x0.7
Mounting hole 2-M3x0.5
105.6±0.5 5
Name plate
Frame
Board
Terminal
block
8.5
22
12.8
2-M4×6L
Short plate
(16.9)
(10.7)
(13.1)
(8.4)
(7.62)(6.62) (39.1)(
8.62)(10.2)
(78.3)
(82)
(77.52)
(22)
7-M3×6L
Name plate
+S
+
–
–S
+RC
–RC
G
L
N
Remote On/Off switch
Output voltage trimmer
Indicator of output voltage On
Outline Drawing
15max. 124
98.5±0.5 6
2-M4×0.7
2-M3×0.5
Name plateName plate
Name plate
105.6±0.5 5
82
67.5±0.5
8.5
22
12.8
+S
+
–
–S
+RC
–RC
G
L
N
Remote On/Off switch
Name plate
Output voltage trimmer
Indicator of output voltage On
2-M4×6L
Short plate
Terminal block
(10.7)
(78.43)
7-M3×6L
(22)
(13.1)
(8.4)
(7.62)(6.62) (39.1)(
8.62)(10.2)
(82)
(78.98)
Board
Frame
Type with cover
Type without cover
RTW 50W
* The insertion length of screws used for mounting the power supply should
be within 6mm from the product surface.
Unit: mm
2

・All specifications are subject to change without notice.
15max. 124
Cover
Name plate
Cover
82
67.5±0.5
98.5±0.5 6
Mounting hole 2-M4x0.7
Mounting hole 2-M3x0.5
105.6±0.5 5
Name plate
Frame
Board
Terminal
block
8.5
22
12.8
2-M4×6L
Short plate
(16.9)
(10.7)
(13.1)
(8.4)
(7.62)(6.62) (39.1)(
8.62)(10.2)
(78.3)
(82)
(77.52)
(22)
7-M3×6L
Name plate
+S
+
–
–S
+RC
–RC
G
L
N
Remote On/Off switch
Output voltage trimmer
Indicator of output voltage On
Outline Drawing
15max. 124
98.5±0.5 6
2-M4×0.7
2-M3×0.5
Name plateName plate
Name plate
105.6±0.5 5
82
67.5±0.5
8.5
22
12.8
+S
+
–
–S
+RC
–RC
G
L
N
Remote On/Off switch
Name plate
Output voltage trimmer
Indicator of output voltage On
2-M4×6L
Short plate
Terminal block
(10.7)
(78.43)
7-M3×6L
(22)
(13.1)
(8.4)
(7.62)(6.62) (39.1)(
8.62)(10.2)
(82)
(78.98)
Board
Frame
Type with cover
Type without cover
RTW 50W
* The insertion length of screws used for mounting the power supply should
be within 6mm from the product surface.
Unit: mm
3

・All specifications are subject to change without notice.
4
4max. 134.5
98.5p0.5 6
2-M4s0.7
2-M3s0.5
Name plateName plate
Name plate
105.6p0.5 5
82
67.5p0.5
8.5
22
12.8
Remote On/Off switch
Indicator of output voltage On
Output voltage trimmer Insulating plate
(7)
(7.62)(6.68) (39.1)(
8.62)(10.2)
(79.21)
(77.9)
UP
+S
+
–
–S
+RC
–RC
G
L
N
Name
plate
Board
Frame
Short plate
Terminal block
7-M3s6L
2-M4s6L
TypeL(terminalblockfacingupward,withoutcover)
RTW 50W
* The insertion length of screws used for mounting the power supply should
be within 6mm from the product surface.
Unit: mm
Allowable tolerance is ±1mm if not specied separately.
Terminal No. Name and function
1 AC input terminal (N) Connects to AC.100-120V or AC.200-240V input line.
2 AC input terminal (L) Connects to AC.100-120V or AC.200-240V input line.
3 Ground terminal (G) Connects to the ground line. This is connected to the case.
4 Remote On/Off terminal (+RC, -RC)
By inputting external signals between terminals, the output voltage can be switched on and off from outside
the power supply. Output is not generated if voltage is not applied to RC terminal. The RC terminal is oated.
5 Remote sensing terminal (+S, -S) Used to compensate for a voltage drop to load. The line between the remote sensing termi-
nal and DC output terminal is short-circuited with a short piece.
6 DC output terminal (+, -) Connects to the load line.
7 Output voltage trimmer (V.ADJ)
Output voltage can be varied. Voltage increases by turning the trimmer in a clockwise direction.
8 LED output indicator (green) The LED is lit green when output voltage is generated.
9Switch for use/nonuse of Remote On/Off
function
Remote On/Off function is activated by setting the switch for use/nonuse of Remote On/Off
function, located in the center of the power supply, to Y (turning in a clockwise direction).
1
2
3
4
5
6
7
+S
G
L
N
+RC
ー RC
ーS
+
ー
7
8 9
RTW50WLタイプ-1
RTW50WLタイプ-2
+S
G
L
N
1
2
3
4
5
6
+RC
ー RC
ーS
+
ー
8
7 9
UP
Terminals
Type with cover/without cover Type L
4

・All specifications are subject to change without notice.
4
4max. 134.5
98.5p0.5 6
2-M4s0.7
2-M3s0.5
Name plateName plate
Name plate
105.6p0.5 5
82
67.5p0.5
8.5
22
12.8
Remote On/Off switch
Indicator of output voltage On
Output voltage trimmer Insulating plate
(7)
(7.62)(6.68) (39.1)(
8.62)(10.2)
(79.21)
(77.9)
UP
+S
+
–
–S
+RC
–RC
G
L
N
Name
plate
Board
Frame
Short plate
Terminal block
7-M3s6L
2-M4s6L
TypeL(terminalblockfacingupward,withoutcover)
RTW 50W
* The insertion length of screws used for mounting the power supply should
be within 6mm from the product surface.
Unit: mm
Allowable tolerance is ±1mm if not specied separately.
Terminal No. Name and function
1 AC input terminal (N) Connects to AC.100-120V or AC.200-240V input line.
2 AC input terminal (L) Connects to AC.100-120V or AC.200-240V input line.
3 Ground terminal (G) Connects to the ground line. This is connected to the case.
4 Remote On/Off terminal (+RC, -RC)
By inputting external signals between terminals, the output voltage can be switched on and off from outside
the power supply. Output is not generated if voltage is not applied to RC terminal. The RC terminal is oated.
5 Remote sensing terminal (+S, -S) Used to compensate for a voltage drop to load. The line between the remote sensing termi-
nal and DC output terminal is short-circuited with a short piece.
6 DC output terminal (+, -) Connects to the load line.
7 Output voltage trimmer (V.ADJ)
Output voltage can be varied. Voltage increases by turning the trimmer in a clockwise direction.
8 LED output indicator (green) The LED is lit green when output voltage is generated.
9Switch for use/nonuse of Remote On/Off
function
Remote On/Off function is activated by setting the switch for use/nonuse of Remote On/Off
function, located in the center of the power supply, to Y (turning in a clockwise direction).
1
2
3
4
5
6
7
+S
G
L
N
+RC
ー RC
ーS
+
ー
7
8 9
RTW50WLタイプ-1
RTW50WLタイプ-2
+S
G
L
N
1
2
3
4
5
6
+RC
ー RC
ーS
+
ー
8
7 9
UP
Terminals
Type with cover/without cover Type L
・All specifications are subject to change without notice.
RTW100W Specifications
With nominal input/output voltage, maximum output current, and Ta=25°C, if not specified separately.
(*1) In primary surge current, 25°C, and cold starting.
(*2) The maximum output current value is between -10°C and +40°C. For use in outside this temperature range, Derating is needed.
(*3) 30min to 8h after the start of input voltage application.
(*4) 1.5 times the value in 100MHz and at between -10°C and 0°C.
(*5) In cold starting at between -20°C and 0°C, lowering of output voltage can occur. It may take 3 seconds or so until the voltage becomes stable.
(*6) Intermittent operation system and automatically resumes when the causes are removed.
(*7) Output voltage shutdown system and resumes by restarting input (approximately 30s interval).
(*8) Use and nonuse can be switched by the internal switch.
RTW 100W
ITEMS/UNITS MODEL
RTW03-25R RTW05-20R RTW12-8R4 RTW15-6R7 RTW24-4R2 RTW28-3R6 RTW48-2R1
Input
Voltage Range (Nominal: 100-240VAC) V AC85-265 (90% load derating in 90VAC or lower)
Frequency
(Nominal: 50-60 single phase)
Hz 47-66
Power Factor (100/240VAC)(typ) 0.99/0.93
Efficiency (100VAC)(typ) ％58483897
Efficiency (200VAC)(typ) ％8878685818
Current (100-120/200-240VAC) (max) A 1.5/0.75 (3.3V: 1.2/0.6)
Inrush Current (100/200VAC)(typ) (*1) A 14/28
Leakage Current (100/240VAC) (max) mA 0.45/0.6 (100VAC (Electrical Appliance and Material Safety Law) / 240VAC (UL, IEC))
Output
Nominal Voltage
VDC 3.3 5 12 15 24 28 48
Maximum Current (*2) A 25 20 8.4 6.7 4.2 3.6 2.1
Maximum Power W 82.5 100 100.8 100.5 100.8
Maximum Line Regulation
(Within input voltage range) (max/typ)
0.2%/0.1% (3.3V: 10mV/5mV)
Maximum Load Regulation (0-100%
load) (max/typ)
0.4%/0.2% (3.3V: 20mV/10mV)
Temperature Coefficient
(Ambient temperature -10℃to +71℃) (max/typ)
％1.0/0.5
Warm Up Drift (max/typ) (*3) ％0.5/0.2
Max Power Total Regulation (max/typ) ％1.8/ 0.9
Maximum Ripple Voltage (max) (*4) mVp-p 80 100 150 200
Maximum Ripple & Noise (max) (*4) mVp-p 120 150 200 300
Start Up Time (100/240VAC)(typ) (*5) ms 400/200
Hold-up Time (100/240VAC)(typ) ms 35
Voltage Adjustable Range VDC 2.6-4.0 4.0-5.8 9.6-13.2 12.0-16.5 19.2-26.4 22.4-30.8 38.4-52.8
Function
Over Current Protection (*6) A 26.2-33.7 21-25 8.82-10.5 7.03-9.04 4.41-5.25 3.78-4.86 2.2-2.62
Over Voltage Protection (*7) VDC 4.2-5.2 6.0-6.9 13.7-15.7 17.0-19.0 27.0-30.5 32.0-35.0 55.0-60.0
Over Temperature Protection Not available
Remote Sensing Available
Remote ON/OFF Control (*8) Available
Parallel Operation Not available
Series Operation Applicable
Operation Indicator Available (green LED)
Variable Output Voltage Not available
Monitoring Signal Not available
Environment
Operating Temperature ℃-10 to +71
Storage Temperature ℃-30 to +75
Operating Humidity ％RH 10-95 (the conditions of maximum 35°C in wet bulb temperature and non-condensation should be ensured.)
Storage Humidity ％RH 10-95 (the conditions of maximum 35°C in wet bulb temperature and non-condensation should be ensured.)
Vibration
5-10Hz, 10 minutes sweep, 10mmp-p total amplitude, 3 directions, 1h for each, in non-operation
10-200Hz, 10 minutes sweep, 19.6m/s² (2G) acceleration, 3 directions, 1h for each, in non-operation
Shock Mounting A: 196m/s² (20G), Mounting B/C: 588m/s² (60G), 11 5ms, 3 directions, 3 times for each, in non-operation
Isolation
Withstand Voltage
For 1 minute at ordinary temperature and humidity
Between input terminal and ground terminal: 2.0kVAC, 10mA cutout current
Between input terminal and output terminal: 3.0kVAC, 10mA cutout current
Between output terminal and ground terminal: 500VAC, 20mA cutout current
Isolation Resistance
In 500VDC and 100MΩor over at ordinary temperature and humidity
Between input terminal and ground terminal, between input terminal and output terminal,
and between output terminal and ground terminal
Standards
Safety Standards
PFHC Complying with EN61000-3-2
EMI
Complying with FCC-Class B / VCCI-Class B / EN55011-B / EN55032-B
Immunity Complying with EN61000-4-2 Level2, 3, -3 Level3, -4 Level3, -5 Level3, 4, -6 Level3, -8 Level4, -11
Mechanical
Weight
without cover / with cover / type L (max)
g 380/450/380
Size (W x H x D)
without cover / with cover / type L
mm 25 x 82 x 160/25 x 82 x 160/25 x 82 x 171.5
Models of different
Detailed product name1 with cover RTW03-25RC RTW05-20RC RTW12-8R4C RTW15-6R7C RTW24-4R2C RTW28-3R6C RTW48-2R1C
Detailed product name2 type L RTW03-25RL RTW05-20RL RTW12-8R4L RTW15-6R7L RTW24-4R2L RTW28-3R6L RTW48-2R1L
Approved by UL62368-1, CSA62368-1, EN62368-1, UL60950-1, CSA60950-1, EN60950-1.
(Expire date of 60950-1: 20/12/2020) Designed to meet Den-an Appendix 8 at 100VAC only.
5

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6
061. x am5 1
82
69.7±0.5
6.75.0±3.531
Mounting hole 2-M4x0.7
Mounting hole 2-M3x0.5
121.7±0.5 20.5
6.3
25
12.1
+S
+
–
–S
+RC
–RC
G
L
N
2-M4×6L
(17.1)
(10.7)
(8.4)
(7.62)(6.12) (39.1)(
8.62)(10.2)
(6.4)
(78.3)
(78.55)
(13.1)
7-M3×6L
TDK
󱐯











Outline Drawing
15max. 160

135.30.5 7.6
2-M40.7
2-M30.5



121.70.5 20.5
82
69.70.5
6.3
24.2
12.1
+S
+
–
–S
+RC
–RC
G
L
N
󱐯



2-M46L

(17.1)
(10.7)
(78.55)
(13.1)
(8.4)
(7.62)(6.12) (39.1)(
8.62)(10.2)
(78.3)
7-M36L
Typewithcover
Typewithoutcover
RTW 100W





7
UP
4max. 171.5

135.30.5
7.6
2-M40.7
2-M30.5

 
7-M36L
2-M46L
121.70.5 20.5
82
69.70.5
6.3
24.2
12.1
+S
+
–
–S
+RC
–RC
G
L
N
󱐯

(7)
(7.62)(6.16) (39.1)(
8.62)(10.2)
(78.75) (78.15)






TypeL(terminalblockfacingupward,withoutcover)
RTW 100W
 
  
  
  
 󱐯

󱐯

  

  
 

  
󱐯

󱐯󱐯





Terminals
Type with cover/without cover Type L
8
7
+S
G
L
N
+RC
ー RC
ー S
+
ー
6
5
4
3
2
1
9
9
+S
G
L
N
1
2
3
4
5
6
+RC
ー RC
ー S
+
ー
8
7
UP
6


6
061. x am5 1
82
69.7±0.5
6.75.0±3.531
Mounting hole 2-M4x0.7
Mounting hole 2-M3x0.5
121.7±0.5 20.5
6.3
25
12.1
+S
+
–
–S
+RC
–RC
G
L
N
2-M4×6L
(17.1)
(10.7)
(8.4)
(7.62)(6.12) (39.1)(
8.62)(10.2)
(6.4)
(78.3)
(78.55)
(13.1)
7-M3×6L
TDK
󱐯











Outline Drawing
15max. 160

135.30.5 7.6
2-M40.7
2-M30.5



121.70.5 20.5
82
69.70.5
6.3
24.2
12.1
+S
+
–
–S
+RC
–RC
G
L
N
󱐯



2-M46L

(17.1)
(10.7)
(78.55)
(13.1)
(8.4)
(7.62)(6.12) (39.1)(
8.62)(10.2)
(78.3)
7-M36L
Typewithcover
Typewithoutcover
RTW 100W





7
UP
4max. 171.5

135.30.5
7.6
2-M40.7
2-M30.5

 
7-M36L
2-M46L
121.70.5 20.5
82
69.70.5
6.3
24.2
12.1
+S
+
–
–S
+RC
–RC
G
L
N
󱐯

(7)
(7.62)(6.16) (39.1)(
8.62)(10.2)
(78.75) (78.15)






TypeL(terminalblockfacingupward,withoutcover)
RTW 100W
 
  
  
  
 󱐯

󱐯

  

  
 

  
󱐯

󱐯󱐯





Terminals
Type with cover/without cover Type L
8
7
+S
G
L
N
+RC
ー RC
ー S
+
ー
6
5
4
3
2
1
9
9
+S
G
L
N
1
2
3
4
5
6
+RC
ー RC
ー S
+
ー
8
7
UP
7

・All specifications are subject to change without notice.
RTW150W Specifications
With nominal input/output voltage, maximum output current, and Ta=25°C, if not specified separately.
(*1) In primary surge current, 25°C, and cold starting.
(*2) The maximum output current value is between -10°C and +30°C. For use in outside this temperature range, Derating is needed.
(*3) 30min to 8h after the start of input voltage application.
(*4) 1.5 times the value in 100MHz and at between -10°C and 0°C.
(*5) Fixed current reduction system and automatically resumes when the causes are removed.
(*6) Output voltage shutdown system and resumes by restarting input (approximately 30s interval).
(*7) Use and non-use can be switched by the internal switch.
RTW 150W
ITEMS/UNITS MODEL
RTW03-35R RTW05-30R RTW12-12R RTW15-10R RTW24-6R3 RTW28-5R4 RTW48-3R2
Input
Voltage Range (Nominal: 100-240VAC) V AC85-265
Frequency
(Nominal: 50-60 single phase) Hz 47-66
Power Factor (100/240VAC)(typ) 0.99/0.96
Efficiency (100VAC)(typ) ％68483808
Efficiency (200VAC)(typ) ％83 86 87 88 89
Current (100-120/200-240VAC) (max) A 1.9/1.0 (3.3V: 1.6/0.85)
Inrush Current (100/200VAC)(typ) (*1) A 14/28
Leakage Current (100/240VAC) (max) mA 0.45/0.65
Output
Nominal Voltage
VDC 3.3 5 12 15 24 28 48
Maximum Current (*2) A 35 30 12.5 10 6.3 (peak 10) 5.4 3.2
Maximum Power W 115.5 150 151.2 153.6
Maximum Line Regulation
(Within input voltage range) (max/typ)
0.2%/0.1%
Maximum Load Regulation
(0-100% load) (max/typ) 0.4%/0.2%
Temperature Coefficient
(Ambient temperature -10℃to +71℃) (max/typ)
％1.0/0.5
Warm Up Drift (max/typ) (*3) ％0.5/0.2
Max Power Total Regulation (max/typ) ％1.8/ 0.9
Maximum Ripple Voltage (max) (*4) mVp-p 80 100 150 200
Maximum Ripple & Noise (max) (*4) mVp-p 120 150 200 300
Start Up Time (100/240VAC)(typ) (*5) ms 220/120
Hold-up Time (100/240VAC)(typ) ms 50/55 35/40
Voltage Adjustable Range
VDC 2.85-4.0 4.0-5.8 9.6-13.2 12.0-16.5 19.2-26.4 22.4-30.8 38.4-52.8
Function
Over Current Protection (*6) A 38.5-45.5 33-39 13.7-16.3 11-13 10.5-13.5 5.94-7.02 3.52-4.16
Over Voltage Protection (*7)
VDC 4.2-5.2 6.0-6.9 13.7-15.7 17.0-19.0 27.0-30.5 32.0-35.0 55.0-60.0
elbal iavatoNnoi tcetorPerutarepmeTrevO
Remote Sensing Available
Remote ON/OFF Control (*8) Available
Parallel Operation Not available
Series Operation Applicable
Operation Indicator Available (green LED)
Variable Output Voltage Not available
Monitoring Signal Not available
Environment
Operating Temperature ℃-10 to +71
Storage Temperature ℃-30 to +75
Operating Humidity
％RH 10-95 (the conditions of maximum 35°C in wet bulb temperature and non-condensation should be ensured.)
Storage Humidity ％RH 10-95 (the conditions of maximum 35°C in wet bulb temperature and non-condensation should be ensured.)
Vibration 5-10Hz, 10 minutes sweep, 10mmp-p total amplitude, 3 directions, 1h for each, in non-operation
10-200Hz, 10 minutes sweep, 19.6m/s² (2G) acceleration, 3 directions, 1h for each, in non-operation
11, )G06 ( ² s /m885k c ohS 5ms, 3 directions, 3 times for each, in non-operation
Isolation
Withstand Voltage
For 1 minute at ordinary temperature and humidity
Between input terminal and ground terminal: 2.0kVAC, 10mA cutout current
Between input terminal and output terminal: 3.0kVAC, 10mA cutout current
Between output terminal and ground terminal: 500VAC, 20mA cutout current
Isolation Resistance
In 500VDC and 100MΩor over at ordinary temperature andhumidity
Between input terminal and ground terminal, between input terminal and output terminal,
and between output terminal and ground terminal
Standards
Safety Standards
g n i y l pmoCCH F P with EN61000-3-2
EMI Complying with FCC-Class B / VCCI-Class B / EN55011-B / EN55032-B
Immunity Complying with EN61000-4-2 Level2, 3, -3 Level3, -4 Level3, -5 Level3, 4, -6 Level3, -8 Level4, -11
Mechanical
Weight
without cover / with cover / type L (max)
g 520/600/520
Size (W x H x D)
without cover / with cover / type L mm 30 x 92 x 180/30 x 92 x 180/30 x 92 x 191.5
Models of different
Detailed product name1 with cover RTW03-35RC RTW05-30RC RTW12-12RC RTW15-10RC RTW24-6R3C RTW28-5R4C RTW48-3R2C
Detailed product name2 type L RTW03-35RL RTW05-30RL RTW12-12RL RTW15-10RL RTW24-6R3L RTW28-5R4L RTW48-3R2L
Approved by UL62368-1, CSA62368-1, EN62368-1, UL60950-1, CSA60950-1, EN60950-1.
(Expire date of 60950-1: 20/12/2020) Designed to meet Den-an Appendix 8 at 100VAC only.

9
Outline Drawing
15max. 180
󱐯
92
770.5
9
1550.5 8
2-M40.7
Name plate
+S
+
–
–S
+RC
–RC
G
L
N

Name plate Name plate
3-M40.7
7-M36L
2-M46L



(8.4)(6.4)
(7.62)(12.5) (39.1)(
8.62)(10.2)
(86.5)
(17.4)
(11.2)
(86.5)
(13.6)
147.50.5 26
30
170.57
15
Typewithcover
RTW 150W




Typewithoutcover
（12.5）
15
29.2
7
（86.5）
（39.1）
（7.62）
（10.2）
（8.4）
（6.4）
（8.62）
Output
voltage
trimmer
3-M4×0.7
2-M4×6L
7-M3×6L
Name plate
（17.4）
（13.6）
（11.2）
UP UP
147.5±0.5
17±0.5
26
Remote On/Off switch
180
15max.
77±0.5
155±0.5
92
9
8
2-M4×0.7
+S
+RC
－ RC
G
L
N
+
－
－
S
UP
Name plate
Indicator of output voltage On
Name plate Name plate
UP
8


9
Outline Drawing
15max. 180
󱐯
92
770.5
9
1550.5 8
2-M40.7
Name plate
+S
+
–
–S
+RC
–RC
G
L
N

Name plate Name plate
3-M40.7
7-M36L
2-M46L



(8.4)(6.4)
(7.62)(12.5) (39.1)(
8.62)(10.2)
(
86.5
)
(
17.4
)
(11.2)
(86.5)
(13.6)
147.50.5 26
30
170.57
15
Typewithcover
RTW 150W




Typewithoutcover
（12.5）
15
29.2
7
（86.5）
（39.1）
（7.62）
（10.2）
（8.4）
（6.4）
（8.62）
Output
voltage
trimmer
3-M4×0.7
2-M4×6L
7-M3×6L
Name plate
（17.4）
（13.6）
（11.2）
UP UP
147.5±0.5
17±0.5
26
Remote On/Off switch
180
15max.
77±0.5
155±0.5
92
9
8
2-M4×0.7
+S
+RC
－ RC
G
L
N
+
－
－
S
UP
Name plate
Indicator of output voltage On
Name plate Name plate
UP
9

・All specifications are subject to change without notice.
10
RTW 150W
Outline Drawing
TypeL(terminalblockfacingupward,withoutcover)
* The insertion length of screws used for mounting the power supply should
be within 6mm from the product surface.
Unit: mm
Allowable tolerance is ±1mm if not specied separately.
+S
+
－
－S
＋RS
－RC
G
L
N
UP
UP
UP
（5.2）
3－M4×0.7
147.5
±0.5
17
±0.5
175
26
7
29.2
Indicator of output voltage On Output voltage trimmer
4MAX
2
－ M4×6L
7
－ M3×6L
Short plate
Name plate
Board
Frame
2
－ M4×0.7
（86.7） （86.25）
（39.1） （10.2）（8.62）（7.62）
（12.5）
（7）
191.5
Remote On/Off switch
Name plate
Name
plate
Name plate
Insulation plate
77±0.5
155±0.5
9
92
8
Terminal No. Name and function
1 AC input terminal (N) Connects to AC.100-120V or AC.200-240V input line.
2 AC input terminal (L) Connects to AC.100-120V or AC.200-240V input line.
3 Ground terminal (G) Connects to the ground line. This is connected to the case.
4 Remote On/O󱐯 terminal (+RC, -RC)
By inputting external signals between terminals, the output voltage can be switched on and o󱐯 from outside
the power supply. Output is not generated if voltage is not applied to RC terminal. The RC terminal is oated.
5 Remote sensing terminal (+S, -S) Used for compensating for voltage drop to load. The line between the remote sensing termi-
nal and DC output terminal is short-circuited with a short piece.
6 DC output terminal (+, -) Connects the load line.
7 Output voltage trimmer (V.ADJ)
Output voltage can be varied. Voltage increases by turning the trimmer in a clockwise direction.
8 LED output indicator (green) The LED is lit green when output voltage is generated.
9Switch for use/nonuse of Remote On/O󱐯
function
Remote On/O󱐯 function is activated by setting the switch for use/nonuse of Remote On/O󱐯
function, located in the center of the power supply, to Y (turning in a clockwise deirection).
Terminals
Type with cover/without cover Type L
8
+S
G
L
N
1
2
3
4
5
6
7
+RC
ー RC
ー S
+
ー
7
9
+S
G
L
N
1
2
3
4
5
6
+RC
ー RC
ー S
+
ー
8
7 9
10

・All specifications are subject to change without notice.
10
RTW 150W
Outline Drawing
TypeL(terminalblockfacingupward,withoutcover)
* The insertion length of screws used for mounting the power supply should
be within 6mm from the product surface.
Unit: mm
Allowable tolerance is ±1mm if not specied separately.
+S
+
－
－S
＋RS
－RC
G
L
N
UP
UP
UP
（5.2）
3－M4×0.7
147.5
±0.5
17
±0.5
175
26
7
29.2
Indicator of output voltage On Output voltage trimmer
4MAX
2
－ M4×6L
7
－ M3×6L
Short plate
Name plate
Board
Frame
2
－ M4×0.7
（86.7） （86.25）
（39.1） （10.2）（8.62）（7.62）
（12.5）
（7）
191.5
Remote On/Off switch
Name plate
Name
plate
Name plate
Insulation plate
77±0.5
155±0.5
9
92
8
Terminal No. Name and function
1 AC input terminal (N) Connects to AC.100-120V or AC.200-240V input line.
2 AC input terminal (L) Connects to AC.100-120V or AC.200-240V input line.
3 Ground terminal (G) Connects to the ground line. This is connected to the case.
4 Remote On/O󱐯 terminal (+RC, -RC)
By inputting external signals between terminals, the output voltage can be switched on and o󱐯 from outside
the power supply. Output is not generated if voltage is not applied to RC terminal. The RC terminal is oated.
5 Remote sensing terminal (+S, -S) Used for compensating for voltage drop to load. The line between the remote sensing termi-
nal and DC output terminal is short-circuited with a short piece.
6 DC output terminal (+, -) Connects the load line.
7 Output voltage trimmer (V.ADJ)
Output voltage can be varied. Voltage increases by turning the trimmer in a clockwise direction.
8 LED output indicator (green) The LED is lit green when output voltage is generated.
9Switch for use/nonuse of Remote On/O󱐯
function
Remote On/O󱐯 function is activated by setting the switch for use/nonuse of Remote On/O󱐯
function, located in the center of the power supply, to Y (turning in a clockwise deirection).
Terminals
Type with cover/without cover Type L
8
+S
G
L
N1
2
3
4
5
6
7
+RC
ー RC
ー S
+
ー
7
9
+S
G
L
N
1
2
3
4
5
6
+RC
ー RC
ー S
+
ー
8
7 9
・All specifications are subject to change without notice.
RTW300W Specifications
With nominal input/output voltage, maximum output current, and Ta=25°C, if not specified separately.
(*1) In primary surge current, 25°C.
(*2)
The maximum output current value is between -10°C and +40°C. For use in outside this temperature range, Derating is needed.
(*3) 30min to 8h after the start of input voltage application.
(*4) 1.5 times the value in 100MHz and at between -10°C and 0°C.
(*5)
Fixed current reduction system; current is shut down if overload condition continues 15 seconds or over. Restarting input
Resumes after (approximately 30s interval) or resetting remote control. (Shutdown by low output voltage detection in 3/5/28V models)
(*6) The detection value tracks the set output voltage (Vo). Output voltage shutdown system,
Resumes by restarting input (approximately 30s interval) or resetting remote control.
(*7) Output is shut down in the condition of 60% or lower of the nominal voltage for 3.3V and 5V models. For 28V models, Output
is shut down in the when the nominal voltage is 20% or lower. Other models do not have this function.
ITEMS/UNITS
MODEL
RTW03-70RH RTW05-60RH RTW12-25RH RTW15-20RH RTW24-13RH RTW28-11RH RTW48-6R5H
Input
Voltage Range (Nominal: 100-240VAC) V AC85 - 265
Frequency
(Nominal: 50-60 single phase) Hz 47 - 66
Power Factor (100/240VAC)(typ) 0.99/0.93
Efficiency (100VAC)(typ) ％6858384838
Efficiency (200VAC)(typ) ％9888687868
Current (100/200VAC) (max) A 4.0/2.0(3.3V:3.6/1.8) max
Inrush Current (100/200VAC)(typ) (*1) A 15/30
Leakage Current (100/240VAC) (max) mA 0.5/0.7
Output
Nominal Voltage
VDC 3.3 5 12 15 24 28 48
Maximum Current (*2) A 70 60 25 20
13（peak 20）
11 6.5
Maximum Power W 231 300 312 308 312
Maximum Line Regulation
(Within input voltage range) (max/typ)
0.2％/0.1％
Maximum Load Regulation
(0-100% load) (max/typ) 0.4％/0.2％
Temperature Coefficient
(Ambient temperature -10℃to +71℃) (max/typ)
％1.0/0.5
Warm Up Drift (max/typ) (*3) ％0.5/0.2
Max Power Total Regulation (max/typ) ％1.8/ 0.9
Maximum Ripple Voltage (max) (*4) mVp-p 80 100 150 200
Maximum Ripple & Noise (max) (*4) mVp-p 120 150 200 300
Start Up Time (100/240VAC)(typ) (*5) ms 220/120
Hold-up Time (100/240VAC)(typ) ms 30/40 25/30 30/40 25/30 30/40
Voltage Adjustable Range
VDC 1.8 - 3.6 3.5 - 5.6 7.2 - 14.4 10.5 - 18.0 16.8 - 26.4 19.6 - 33.6 33.6 - 55.0
Function
Over Current Protection (*6) A 73.5 - 84.0 63.0 - 72.0 26.3 - 30.0 21.0 - 24.0 11.5 - 13.2 6.8 - 7.8
Over Voltage Protection (*7)
VDC Vo+0.66 - 1.32 Vo+1.0 - 2.0 Vo+2.4 - 4.8 Vo+3.0 - 6.0 Vo+4.8 - 9.6 Vo+5.6 - 10.4 Vo+1.0 - 10
Not availableOver Temperature Protection
AvailableRemote Sensing
AvailableRemote ON/OFF Control (*8)
Parallel Operation
Applicable (current balance function and master/slave operation are supported; synchronized operation is not supported)
Series Operation Available (green LED)
Operation Indicator Available
Variable Output Voltage Available (power fail signal)
Low Output Voltage Dectation (*7) Available
Environment
Operating Temperature ℃ -10 to +71
Storage Temperature
℃ -30 to +75
Operating Humidity
％RH 10-95 (the conditions of maximum 35°C in wet bulb temperature and non-condensation should be ensured.)
Storage Humidity ％RH 10-95 (the conditions of maximum 35°C in wet bulb temperature and non-condensation should be ensured.)
Vibration 5-10Hz, 10 minutes sweep, 10mmp-p total amplitude, 3 directions, 1h for each, in non-operation
10-200Hz, 10 minutes sweep, 19.6m/s² (2G) acceleration, 3 directions, 1h for each, in non-operation
Shock 588m/s² (60G), 11 5ms, 3 directions, 3 times for each, in non-operation
Isolation
Withstand Voltage
For 1 minute at ordinary temperature and humidity
Between input terminal and ground terminal: 2.0kVAC, 10mA cutout current
Between input terminal and output terminal: 3.0kVAC, 10mA cutout current
Between output terminal and ground terminal: 500VAC, 40mA cutout current
Isolation Resistance
In 500VDC and 100MΩor over at ordinary temperature and humidity
Between input terminal and ground terminal, between input terminal and output terminal, and
between output terminal and ground terminal
Standards
Safety Standards
PFHC Complying with EN61000-3-2
EMI Complying with FCC-Class B / VCCI-Class B / EN55011-B / EN55032-B
Immunity Complying with EN61000-4-2 Level2, 3, -3 Level3, -4 Level3, -5 Level3, 4, -6 Level3, -8 Level4, -11
Mechanical
Weight
without cover / with cover / type L (max)
g 1300/1200
Size (W x H x D)
without cover / with cover / type L
mm 40 x 120 x 250/40 x 120 x 250
Models of different
Detailed product name1 with cover RTW03-70RL RTW05-60RL RTW12-25RL RTW15-20RL RTW24-13RL RTW28-11RL RTW48-6R5L
RTW 300W
Approved by UL62368-1, CSA62368-1, EN62368-1, UL60950-1, CSA60950-1, EN60950-1.
(Expire date of 60950-1: 20/12/2020) Designed to meet Den-an Appendix 8 at 100VAC only.
11

・All specifications are subject to change without notice.
RTW 300W
Outline Drawing
109 0.5
5.5
(5.5)
4-M4 0.7
40
105.5 0.5
(37)97 0.5
179 0.5
(60.5)10.5
10.5
20 0.59.5
9.5
55 0.5
20 0.5
3-M4 0.7
4.5
(10) (11)
(27.2)(40)(11) (33)
250
(2.5)237 0.5
4.5
10.5
4.5
9.5 0.5 3-R2.25
120
61.5 0.5
115 0.5
2.5
(2.5)
5
CN3 CN2 CN1
1 5 1 21
4-M4 8L Connector
5-M4 8L
(67.25)
(60)
+
+
+S
S
G
L
N
Output
voltage trimmer
Indicator of output
voltage On
20 0.5
Name plate
Type with cover
* The insertion length of screws used for mounting the power supply should
be within 6mm from the product surface.
Unit: mm
Terminal No. Name and function
1 AC input terminal (N)
2 AC input terminal (L)
3 Ground terminal (G)
4 Remote sensing terminal (+S, -S)
5 DC output terminal (+, -)
6 Output voltage trimmer (V.ADJ)
7 LED output indicator (green)
Terminals
Type with cover/Type L
1
2
+S
+
+
‒S
G
L
N
‒
‒
5
4
3
2
1
6
7
‒PF
+PF
CN1
1
2
3
4
5
‒RC
+RC
CB
RV
‒S
CN2
1
2
3
4
5
‒RC
+RC
CB
RV
‒S
CN3
5 15 121
CN3 CN2 CN1
‒
‒
‒
12

・All specifications are subject to change without notice.
RTW 300W
Outline Drawing
109 0.5
5.5
(5.5)
4-M4 0.7
40
105.5 0.5
(37)97 0.5
179 0.5
(60.5)10.5
10.5
20 0.59.5
9.5
55 0.5
20 0.5
3-M4 0.7
4.5
(10) (11)
(27.2)(40)(11) (33)
250
(2.5)237 0.5
4.5
10.5
4.5
9.5 0.5 3-R2.25
120
61.5 0.5
115 0.5
2.5
(2.5)
5
CN3 CN2 CN1
1 5 1 21
4-M4 8L Connector
5-M4 8L
(67.25)
(60)
+
+
+S
S
G
L
N
Output
voltage trimmer
Indicator of output
voltage On
20 0.5
Name plate
Type with cover
* The insertion length of screws used for mounting the power supply should
be within 6mm from the product surface.
Unit: mm
Terminal No. Name and function
1 AC input terminal (N)
2 AC input terminal (L)
3 Ground terminal (G)
4 Remote sensing terminal (+S, -S)
5 DC output terminal (+, -)
6 Output voltage trimmer (V.ADJ)
7 LED output indicator (green)
Terminals
Type with cover/Type L
1
2
+S
+
+
‒S
G
L
N
‒
‒
5
4
3
2
1
6
7
‒PF
+PF
CN1
1
2
3
4
5
‒RC
+RC
CB
RV
‒S
CN2
1
2
3
4
5
‒RC
+RC
CB
RV
‒S
CN3
5 15 121
CN3 CN2 CN1
‒
‒
‒
・All specifications are subject to change without notice.
13
RTW 300W
Outline Drawing
TypeL(terminalblockfacingupward,withoutcover)
N L G -S+S
（60）
（67.25）
＋
＋
－
－
55.05 20.059.5
3-M4×0.7
4-M4×0.7
4-M4×8L
5-M4×8L
（5.5） 5.5
109.05
20.05
10.5
10.5
10.5
4.5
4.5
9.5.05
250
237.05
9.5
（2.5）
2.5
120
115.05
61.5.05
（2.5）
（11）
（11）（10）
4.5
（4.0） （33）（27.2）
39.2
20.05
97.05
105.5.05
（37）
179.05
（60.5）
UP
3-R2.25
Indicator of output
voltage On
Connector
CN3 CN2 CN1
Name plate
Output voltage
trimmer
* The insertion length of screws used for mounting the power supply should
be within 6mm from the product surface.
Unit: mm
Allowable tolerance is ±1mm if not specied separately.
13

RTW
・All specifications are subject to change without notice.
Derating Curve
Ambient temperature (°C)
20
10
0
40
60
80
100
ｰ20 ｰ10 0 10 20 30 40 50 60 71
Output power (%)
Operatable range
(without guarantee)
(B),(C)
(A)
Ambient temperature (°C)
20
10
40
60
80
100
ｰ20 ｰ
ｰ ｰ
ｰ ｰ
ｰ ｰ
ｰ ｰ
ｰ ｰ
10 0 10 20 30 40 50 60 71
Output power (%)
Operatable range
(without guarantee)
(B),(C)
(A)
100 110 120 130 140 26585 90
100
80
90
60
40
0
20
Maximum output power (%)
Input voltage (V)
(B),(C)
(A)
10 10 20 30 40 50 60 7120 0
100
80
70
60
40
0
20
Output power (%)
Ambient temperature (°C)
(B),(C)(A)
Operatable range
(without guarantee)
10 10 20 30 40 50 60 65 7120 0
100
80
60
40
0
20
(B),(C)
(A)
Output power (%)
Ambient temperature (°C)
Operatable range
(without guarantee)
10 10 20 30 40 50 60 7120 0
100
80
60
50
40
0
20
10
Output power (%)
Ambient temperature (°C)
(B),(C)(A)
Operatable range
(without guarantee)
10 10 20 30 40 50 60 7120 0
100
80
60
50
40
0
20
10
Output power (%)
Ambient temperature (°C)
Operatable range
(without guarantee)
(B),(C)
(A)
Type with cover
Type without cover/Type L
Type without cover/Type L Type with cover
Type with cover
Type with cover
Input voltage derating (for type with cover)
*Refer to the item regarding mounting in the
handling instructions for (A), (B), and (C).
50W
100W
150W
300W
10 10 20 30 40 50 60 7120 0
100
80
60
40
0
20
Output power (%)
Ambient temperature (°C)
(B),(C)
(A)
Operatable range
(without guarantee)
10 10 20 30 40 50 60 7120 0
100
80
60
50
40
0
20
Output power (%)
Ambient temperature (°C)
Operatable range
(without guarantee)
(B),(C)
(A)
90 120 170 26585 100
100
80
90
0
Output power (%)
Input voltage (V)
60
40
20
Input voltage derating (Type L)
90 120 170 26585 100
100
80
90
0
Output power (%)
Input voltage (V)
←(B),(C)
60
40
20
Input voltage derating (Type with cover)
Type L
Type without cover/Type L
ｰ ｰ
0V
Vout
0V
H
L
L
H
・All specifications are subject to change without notice.
Sequence Time Chart
(*1) Level (*2) UV shut down is
only for 3.3V, 5V, 28V2.4V≦H≦24V or open
0V≦L≦0.4V or shorted
PF signal detection (80% or under)
OVP detection OVP detection
OCP detection point (105% or over)
OCP detection point (105% or over)
OCP/UV (shut down)
OCP/UV (shut down)
Input Voltage
Output Voltage
Remote On/Off
control (*1)
Input start Remote Off Remote On Input shut down Input start OVP activated Input shut down Input start OCP activated OCP deactivated OCP activated OCP/UV shut down(*2) Input shut down Input start OVP activated Remote Off Remote On OCP activated OCP/UV shut down(*2) Remote Off Remote On
PF signal
(Open collector)
RTW300W
RTW
Block Diagram
L
N
+
‒
+
‒
+S
‒S
‒S
RV
CB
+RC
‒RC
AC input
RC
Control
circuit
‒PF
+PF
Input
filter
circuit
Input
rectifier
circuit
Surge
current
control
circuit
Circuit
for
raising
voltage
Power factor
improvement
control circuit Power
switch
circuit
Output rectifying
and
smoothing circuit
Driving
circuit Control circuit
Over
current
detection
circuit
Over
voltage
detection
circuit
DC output
RTW300W
L
N–
+S
–S
DC output
Output
rectifying and
smoothing
circuit
Remote
On/Off switch
Input
filter
circuit
Input
rectifier
circuit
Surge
current
control
circuit
Power
switch
circuit
Over
current
detection
circuit
Control circuit
Circuit
for raising
voltage
Power factor
improvement
control circuit
Over
voltage
detection
circuit
+RC
–RC
Output
voltage
detection
circuit
+
AC input
RTW50-150W
14

RTW
・All specifications are subject to change without notice.
Derating Curve
Ambient temperature (°C)
20
10
0
40
60
80
100
ｰ20 ｰ10 0 10 20 30 40 50 60 71
Output power (%)
Operatable range
(without guarantee)
(B),(C)
(A)
Ambient temperature (°C)
20
10
40
60
80
100
ｰ20 ｰ
ｰ ｰ
ｰ ｰ
ｰ ｰ
ｰ ｰ
ｰ ｰ
10 0 10 20 30 40 50 60 71
Output power (%)
Operatable range
(without guarantee)
(B),(C)
(A)
100 110 120 130 140 26585 90
100
80
90
60
40
0
20
Maximum output power (%)
Input voltage (V)
(B),(C)
(A)
10 10 20 30 40 50 60 7120 0
100
80
70
60
40
0
20
Output power (%)
Ambient temperature (°C)
(B),(C)(A)
Operatable range
(without guarantee)
10 10 20 30 40 50 60 65 7120 0
100
80
60
40
0
20
(B),(C)
(A)
Output power (%)
Ambient temperature (°C)
Operatable range
(without guarantee)
10 10 20 30 40 50 60 7120 0
100
80
60
50
40
0
20
10
Output power (%)
Ambient temperature (°C)
(B),(C)(A)
Operatable range
(without guarantee)
10 10 20 30 40 50 60 7120 0
100
80
60
50
40
0
20
10
Output power (%)
Ambient temperature (°C)
Operatable range
(without guarantee)
(B),(C)
(A)
Type with cover
Type without cover/Type L
Type without cover/Type L Type with cover
Type with cover
Type with cover
Input voltage derating (for type with cover)
*Refer to the item regarding mounting in the
handling instructions for (A), (B), and (C).
50W
100W
150W
300W
10 10 20 30 40 50 60 7120 0
100
80
60
40
0
20
Output power (%)
Ambient temperature (°C)
(B),(C)
(A)
Operatable range
(without guarantee)
10 10 20 30 40 50 60 7120 0
100
80
60
50
40
0
20
Output power (%)
Ambient temperature (°C)
Operatable range
(without guarantee)
(B),(C)
(A)
90 120 170 26585 100
100
80
90
0
Output power (%)
Input voltage (V)
60
40
20
Input voltage derating (Type L)
90 120 170 26585 100
100
80
90
0
Output power (%)
Input voltage (V)
←(B),(C)
60
40
20
Input voltage derating (Type with cover)
Type L
Type without cover/Type L
ｰ ｰ
0V
Vout
0V
H
L
L
H
・All specifications are subject to change without notice.
Sequence Time Chart
(*1) Level (*2) UV shut down is
only for 3.3V, 5V, 28V2.4V≦H≦24V or open
0V≦L≦0.4V or shorted
PF signal detection (80% or under)
OVP detection OVP detection
OCP detection point (105% or over)
OCP detection point (105% or over)
OCP/UV (shut down)
OCP/UV (shut down)
Input Voltage
Output Voltage
Remote On/Off
control (*1)
Input start Remote Off Remote On Input shut down Input start OVP activated Input shut down Input start OCP activated OCP deactivated OCP activated OCP/UV shut down(*2) Input shut down Input start OVP activated Remote Off Remote On OCP activated OCP/UV shut down(*2) Remote Off Remote On
PF signal
(Open collector)
RTW300W
RTW
Block Diagram
L
N
+
‒
+
‒
+S
‒S
‒S
RV
CB
+RC
‒RC
AC input
RC
Control
circuit
‒PF
+PF
Input
filter
circuit
Input
rectifier
circuit
Surge
current
control
circuit
Circuit
for
raising
voltage
Power factor
improvement
control circuit Power
switch
circuit
Output rectifying
and
smoothing circuit
Driving
circuit Control circuit
Over
current
detection
circuit
Over
voltage
detection
circuit
DC output
RTW300W
L
N–
+S
–S
DC output
Output
rectifying and
smoothing
circuit
Remote
On/Off switch
Input
filter
circuit
Input
rectifier
circuit
Surge
current
control
circuit
Power
switch
circuit
Over
current
detection
circuit
Control circuit
Circuit
for raising
voltage
Power factor
improvement
control circuit
Over
voltage
detection
circuit
+RC
–RC
Output
voltage
detection
circuit
+
AC input
RTW50-150W
15

RTW
・All specifications are subject to change without notice.
16
RTW Instruction Manual
󱫀
When the stability at the load terminal is a problem due to
the e󱐯ect of the line-drop from power supply to load, the
stability can be improved by remote sensing.
Between output terminal and load terminal and for one
side, up to
3.3V output: 0.15V max.
5V output: 0.25V max.
12-48V output: 0.4V max.
remote sensing is possible.
For output voltage and output power of the power supply,
use this within the range of output characteristics. When
in drastic load changes, specifications for dynamic load
change may not be satised.
Remove the short plate between +S/+ and -S/- terminals,
and make wiring as shown in the gure below. Use shield-
ed wires or twisted wires for sensing line (5m at maximum
is recommended).
If the OVP function tends to be activated easily or vibra-
tion easily occurs, set an external electrolytic capacitor
with 470µF or over between +S and +, and between -S
and -.
Load
Twisted wires
+
+
+
-
+S
-
S
󱫂 
Remote On/O󱐯 function is activated by setting the switch
for use/nonuse of Remote On/Off function, located in the
center of the power supply, to Y (turning in a clockwise di-
rection).
By inputting signals described below to the remote On/O󱐯
terminals (+RC, -RC), output voltage can be switched on and
o󱐯 from outside the power supply. Output is not generated if
voltage is not applied to RC terminal.
Output voltage is switched on in the condition of H level
(4.5-24.5V external voltage application)* between +RC and
-RC.
Output voltage is switched off in the condition of L level
(shorted or 0-0.8V voltage between terminals) between +RC
and -RC.
* When in 12.5-24.5V external voltage application, attach an
external resistance (1.5kΩ).
±RC terminals are insulated from the AC input terminal and
DC output terminal.
The insulation between the ±RC terminals and the out-
puts conforms to the specification of insulation resistance
(between output terminal and ground terminal), and the
withstand voltage of the AC input terminal and the ±RC
terminals conforms to the specification (withstand voltage
between input terminal and output terminal).
+S
+
-
-
S
+RC
- RC
G
L
N
Input/Output terminals
Set internal switch to Y
External voltage
RSW
NY
󱫄 
By inputting signals described below to the remote On/O󱐯
terminals (+RC, -RC) of the function connector CN2 or CN3,
output voltage can be switched on and o󱐯 from outside the
power supply.
±RC pins are connected by a cable kit when shipped. Re-
move the cable kit when using Remote On/O󱐯 function.
The output voltage is switched o󱐯 in the condition of H level
(open or 2.4-24V external voltage application (1.0mA max.
inowing current)) between +RC and -RC.
The output voltage is switched on in the condition of L level
(shorted or 0-0.4V voltage between terminals (1.6mA max.
outowing current)) between +RC and -RC.
±RC terminals are insulated from the AC input terminal and
DC output terminal.
The insulation between the ±RC terminals and the out-
puts conforms to the specification of insulation resistance
(between output terminal and ground terminal), and the
withstand voltage of the AC input terminal and the ±RC
terminals conforms to the specification (withstand voltage
between input terminal and output terminal).
󱫆 
Output voltage can be varied by external voltage using
variable output voltage (RV) of the function connector CN2
or CN3. The nominal output voltage can be generated by
approximately 5V RV voltage.
When using this function, use twisted or bundled wires
(recommended length is 2m max.) for wiring from RV/-S
terminals.
● Set the output voltage to the lower limit value to be var-
ied by turning the output voltage trimmer (V.ADJ).
● Output voltage is lowered by turning the trimmer in a
1. Explanation of functions and notes
RTW
・All specifications are subject to change without notice.
17
counterclockwise direction.
● Connect "+" of the external variable power supply to RV
pin, and its "-" to -S pin.
● Output voltage can be varied by varying the voltage of
the external variable power supply.
External variable power supply
+
-
-
S
Load
V.ADJ
RV
CN3
CN2
CN1
-
+
●Over Voltage Protection function may be activated if the output volt-
age is drastically lowered with less load.
5 Master/slave function (300W)
Master/slave operation is applicable by using RV terminal.
Mutually connect RV and -S of each power supply unit
using CN2/CN3. Turn the voltage trimmer (V.ADJ) of the
slave power supply unit counterclockwise until it stops.
Outputsof all the power supply units can be varied accord-
ing to V.ADJ of the master power supply unit.
Use twisted or bundled wires for wiring from RV/-S termi-
nals.
●In the case of multiple output loads
+ -
-
S
Load
V.ADJ
RV
CN3
- S
RV
CN2
+ -
-
S
Load
Slave
V.ADJ
RV
CN3
- S
RV
CN2
+ -
-
S
Load
V.ADJ
RV
CN3
- S
RV
CN2
Master
●In the case of one output load
The impedance of load line from each power supply
should, if possible, the same.
+ - + - + -
- S
V.ADJ
RV
CN3
- S
RV
CB CB
CB CB
CB
CB
CN2
- S
Load Slave
V.ADJ
RV
CN3
- S
RV
CN2
- S
V.ADJ
RV
CN3
- S
RV
CN2
Master
6 Current balance function (CB terminal) (300W)
When multiple power supplies are in parallel operation and
their CB terminals and -S terminals are respectively mutu-
ally connected, this function controls the output current
of the power supplies so that they become equal. Parallel
operation should be congured with 4 units at maximum.
(1) Equalization condition
Output voltage uctuation between power supplies
(Maximum voltage - Minimum voltage)/Nominal volt-
age = 2% max.
Output current: 20-90% of nominal total output cur-
rent
(2) Equalization performance
Output current fluctuation between power supplies
under the equalization conditions described above is
10% max. of nominal output current.
(3) CB terminal connection diagram
Use twisted or bundled wires for wiring from CB/-S ter-
minals.
+ ー
ー S
CB
+ ー
ー S
CB
+ ー
ー S
ー S
CB
CB
V.ADJ
CN3 CB CB
CN2
ー S
Load Slave
V.ADJ
CN3
CN2
ー S
V.ADJ
CN3
CN2
Master
The impedance of load line from each power supply
should, if possible, the same.
7 Redundant operation (N+1) (300W)
When in redundant operation of power supply, connect a
diode to the end of the power supply's output. The imped-
ance of load line from each power supply should be pos-
sibly the same.
Use twisted or bundled wires for wiring from CB/-S termi-
nals.
16

RTW
・All specifications are subject to change without notice.
16
RTW Instruction Manual
󱫀
When the stability at the load terminal is a problem due to
the e󱐯ect of the line-drop from power supply to load, the
stability can be improved by remote sensing.
Between output terminal and load terminal and for one
side, up to
3.3V output: 0.15V max.
5V output: 0.25V max.
12-48V output: 0.4V max.
remote sensing is possible.
For output voltage and output power of the power supply,
use this within the range of output characteristics. When
in drastic load changes, specifications for dynamic load
change may not be satised.
Remove the short plate between +S/+ and -S/- terminals,
and make wiring as shown in the gure below. Use shield-
ed wires or twisted wires for sensing line (5m at maximum
is recommended).
If the OVP function tends to be activated easily or vibra-
tion easily occurs, set an external electrolytic capacitor
with 470µF or over between +S and +, and between -S
and -.
Load
Twisted wires
+
+
+
-
+S
-
S
󱫂 
Remote On/O󱐯 function is activated by setting the switch
for use/nonuse of Remote On/Off function, located in the
center of the power supply, to Y (turning in a clockwise di-
rection).
By inputting signals described below to the remote On/O󱐯
terminals (+RC, -RC), output voltage can be switched on and
o󱐯 from outside the power supply. Output is not generated if
voltage is not applied to RC terminal.
Output voltage is switched on in the condition of H level
(4.5-24.5V external voltage application)* between +RC and
-RC.
Output voltage is switched off in the condition of L level
(shorted or 0-0.8V voltage between terminals) between +RC
and -RC.
* When in 12.5-24.5V external voltage application, attach an
external resistance (1.5kΩ).
±RC terminals are insulated from the AC input terminal and
DC output terminal.
The insulation between the ±RC terminals and the out-
puts conforms to the specification of insulation resistance
(between output terminal and ground terminal), and the
withstand voltage of the AC input terminal and the ±RC
terminals conforms to the specification (withstand voltage
between input terminal and output terminal).
+S
+
-
-
S
+RC
- RC
G
L
N
Input/Output terminals
Set internal switch to Y
External voltage
RSW
NY
󱫄 
By inputting signals described below to the remote On/O󱐯
terminals (+RC, -RC) of the function connector CN2 or CN3,
output voltage can be switched on and o󱐯 from outside the
power supply.
±RC pins are connected by a cable kit when shipped. Re-
move the cable kit when using Remote On/O󱐯 function.
The output voltage is switched o󱐯 in the condition of H level
(open or 2.4-24V external voltage application (1.0mA max.
inowing current)) between +RC and -RC.
The output voltage is switched on in the condition of L level
(shorted or 0-0.4V voltage between terminals (1.6mA max.
outowing current)) between +RC and -RC.
±RC terminals are insulated from the AC input terminal and
DC output terminal.
The insulation between the ±RC terminals and the out-
puts conforms to the specification of insulation resistance
(between output terminal and ground terminal), and the
withstand voltage of the AC input terminal and the ±RC
terminals conforms to the specification (withstand voltage
between input terminal and output terminal).
󱫆 
Output voltage can be varied by external voltage using
variable output voltage (RV) of the function connector CN2
or CN3. The nominal output voltage can be generated by
approximately 5V RV voltage.
When using this function, use twisted or bundled wires
(recommended length is 2m max.) for wiring from RV/-S
terminals.
● Set the output voltage to the lower limit value to be var-
ied by turning the output voltage trimmer (V.ADJ).
● Output voltage is lowered by turning the trimmer in a
1. Explanation of functions and notes
RTW
・All specifications are subject to change without notice.
17
counterclockwise direction.
● Connect "+" of the external variable power supply to RV
pin, and its "-" to -S pin.
● Output voltage can be varied by varying the voltage of
the external variable power supply.
External variable power supply
+ -
-
S
Load
V.ADJ
RV
CN3
CN2
CN1
-
+
●Over Voltage Protection function may be activated if the output volt-
age is drastically lowered with less load.
5 Master/slave function (300W)
Master/slave operation is applicable by using RV terminal.
Mutually connect RV and -S of each power supply unit
using CN2/CN3. Turn the voltage trimmer (V.ADJ) of the
slave power supply unit counterclockwise until it stops.
Outputsof all the power supply units can be varied accord-
ing to V.ADJ of the master power supply unit.
Use twisted or bundled wires for wiring from RV/-S termi-
nals.
●In the case of multiple output loads
+ -
-
S
Load
V.ADJ
RV
CN3
- S
RV
CN2
+ -
-
S
Load
Slave
V.ADJ
RV
CN3
- S
RV
CN2
+ -
-
S
Load
V.ADJ
RV
CN3
- S
RV
CN2
Master
●In the case of one output load
The impedance of load line from each power supply
should, if possible, the same.
+ - + - + -
- S
V.ADJ
RV
CN3
- S
RV
CB CB
CB CB
CB
CB
CN2
- S
Load Slave
V.ADJ
RV
CN3
- S
RV
CN2
- S
V.ADJ
RV
CN3
- S
RV
CN2
Master
6 Current balance function (CB terminal) (300W)
When multiple power supplies are in parallel operation and
their CB terminals and -S terminals are respectively mutu-
ally connected, this function controls the output current
of the power supplies so that they become equal. Parallel
operation should be congured with 4 units at maximum.
(1) Equalization condition
Output voltage uctuation between power supplies
(Maximum voltage - Minimum voltage)/Nominal volt-
age = 2% max.
Output current: 20-90% of nominal total output cur-
rent
(2) Equalization performance
Output current fluctuation between power supplies
under the equalization conditions described above is
10% max. of nominal output current.
(3) CB terminal connection diagram
Use twisted or bundled wires for wiring from CB/-S ter-
minals.
+ ー
ー S
CB
+ ー
ー S
CB
+ ー
ー S
ー S
CB
CB
V.ADJ
CN3 CB CB
CN2
ー S
Load Slave
V.ADJ
CN3
CN2
ー S
V.ADJ
CN3
CN2
Master
The impedance of load line from each power supply
should, if possible, the same.
7 Redundant operation (N+1) (300W)
When in redundant operation of power supply, connect a
diode to the end of the power supply's output. The imped-
ance of load line from each power supply should be pos-
sibly the same.
Use twisted or bundled wires for wiring from CB/-S termi-
nals.
17

RTW
・All specifications are subject to change without notice.
18
+ -
- S
CB
CB
- S
+ -
- S
CB
- S
V.ADJ
CN3 CB
CN2
Load
V.ADJ
CN3
CN2
●Over Voltage Protection function may be activated if the output
voltage is drastically lowered with less load.
8 Power fail signal (300W)
It will become open when the output voltage drops to 80%
or lower than the set voltage.
Sink current: 50mA max. Voltage between collector and
emitter: 40V max. ±P/F terminals are insulated from the
AC input terminal and DC output terminal.
The insulation between the ±P/F terminals and the out-
puts is the same as the insulation resistance between the
output and the ground terminal, and the insulation between
the AC input terminal and the ±P/F terminals is the same
as the insulation resistance between the input terminal and
the output terminal.
●Output specications
+PF
- PF
CN1
9 Maximum peak current
24V-output products of 150W/300W accommodate peak
power.
Observe the conditions shown below for a peak current
over the nominal value.
I
1
I2
TD=(t/T)
t
DI12+(1 - D)I226.3A
(3) Condition in effective current
(1) Condition of time
t 10s
(2) Condition of peak current
I110A
(4) Condition of effective power
151.2W
(Effective current x output voltage)
P
DI12+(1
- D)I2213A
(3) Condition in effective current
(1) Condition of time
t 10s
(2) Condition of peak current
I120A
(4) Condition of effective power
312W
(Effective current x output voltage)
P
150W 300W
󱫒 CE marking
RTW series meets the EN60950-1 and the CE marking
is applicable to this series, based on 73/23/EEC and
93/68/EEC.
The custom-made power supply units (variation models)
modied from this DC power supply device are not basi-
cally CE-marking applicable, except when "CE-marking
applicable" is specifically declared in their specification
document.
󱫓 Insulation/withstand voltage test
Insulation/withstand voltage test can cause deteriora-
tion. Due consideration should be given when implement-
ing a test. It is necessary to keep the electric potential
equal within inputs, within outputs, and within FGs (frame
grounds), respectively.
As a testing device, if is the type which starts up gradually
when in test on and automatically discharges the charged
energy when in test off. If discharging after test is con-
ducted manually, it should be conducted via approximately
100kΩ-1MΩ resistance (Note that discharging via low
impedance should be avoided because it can cause dete-
rioration).
Due attention should be paid to measures to prevent elec-
tric shock in any case.
● Power supply terminal connections for insulation/
withstand voltage test
Short-circuit each terminal of outputs and inputs.
+S
+
-
-
S
+RC
- RC
G
L
N
3 Outputs 3 Outputs
2 FGs 2 FGs
1 Inputs
+
+
-
-
+S
- S
G
L
N1 Inputs
(300W)(50～150W)
● Connections between testing device and power
supply for insulation/withstand voltage test
Make connections between the testing device and power
supply unit as shown in the table below. And then conduct
a test.
Test conditions
Insulation testing device Withstand voltage testing device
+terminal -terminal +terminal -terminal
Insulation between Input and FG 12―
―
Insulation between Input and Output 13―
―
Insulation between Output and FG 32―
―
Withstand voltage between Input and Output ――1 3
Withstand voltage between Input and FG ――1 2
Withstand voltage between Output and FG ――3 2
18

RTW
・All specifications are subject to change without notice.
18
+ -
- S
CB
CB
- S
+ -
- S
CB
- S
V.ADJ
CN3 CB
CN2
Load
V.ADJ
CN3
CN2
●Over Voltage Protection function may be activated if the output
voltage is drastically lowered with less load.
8 Power fail signal (300W)
It will become open when the output voltage drops to 80%
or lower than the set voltage.
Sink current: 50mA max. Voltage between collector and
emitter: 40V max. ±P/F terminals are insulated from the
AC input terminal and DC output terminal.
The insulation between the ±P/F terminals and the out-
puts is the same as the insulation resistance between the
output and the ground terminal, and the insulation between
the AC input terminal and the ±P/F terminals is the same
as the insulation resistance between the input terminal and
the output terminal.
●Output specications
+PF
- PF
CN1
9 Maximum peak current
24V-output products of 150W/300W accommodate peak
power.
Observe the conditions shown below for a peak current
over the nominal value.
I1
I2
TD=(t/T)
t
DI12+(1 - D)I226.3A
(3) Condition in effective current
(1) Condition of time
t 10s
(2) Condition of peak current
I110A
(4) Condition of effective power
151.2W
(Effective current x output voltage)
P
DI12+(1
- D)I2213A
(3) Condition in effective current
(1) Condition of time
t 10s
(2) Condition of peak current
I120A
(4) Condition of effective power
312W
(Effective current x output voltage)
P
150W 300W
󱫒 CE marking
RTW series meets the EN60950-1 and the CE marking
is applicable to this series, based on 73/23/EEC and
93/68/EEC.
The custom-made power supply units (variation models)
modied from this DC power supply device are not basi-
cally CE-marking applicable, except when "CE-marking
applicable" is specifically declared in their specification
document.
󱫓 Insulation/withstand voltage test
Insulation/withstand voltage test can cause deteriora-
tion. Due consideration should be given when implement-
ing a test. It is necessary to keep the electric potential
equal within inputs, within outputs, and within FGs (frame
grounds), respectively.
As a testing device, if is the type which starts up gradually
when in test on and automatically discharges the charged
energy when in test off. If discharging after test is con-
ducted manually, it should be conducted via approximately
100kΩ-1MΩ resistance (Note that discharging via low
impedance should be avoided because it can cause dete-
rioration).
Due attention should be paid to measures to prevent elec-
tric shock in any case.
● Power supply terminal connections for insulation/
withstand voltage test
Short-circuit each terminal of outputs and inputs.
+S
+
-
-
S
+RC
- RC
G
L
N
3 Outputs 3 Outputs
2 FGs 2 FGs
1 Inputs
+
+
-
-
+S
- S
G
L
N1 Inputs
(300W)(50～150W)
● Connections between testing device and power
supply for insulation/withstand voltage test
Make connections between the testing device and power
supply unit as shown in the table below. And then conduct
a test.
Test conditions
Insulation testing device Withstand voltage testing device
+terminal -terminal +terminal -terminal
Insulation between Input and FG 12―
―
Insulation between Input and Output 13―
―
Insulation between Output and FG 32―
―
Withstand voltage between Input and Output ――1 3
Withstand voltage between Input and FG ――1 2
Withstand voltage between Output and FG ――3 2
RTW
・All specifications are subject to change without notice.
19
2. Mounting
(A) Standard mounting method (B)(D)
(E)
(C)
Mounting methods used are are methods (B) through (E)
in addition to the standard method (A). However, the meth-
ods (D) and (E) cannot be used because the inside of the
power supply unit is heated.
Use the unit with mounting methods (A), (B), or (C), and
within the derating curve.
● When using this product, confirm that the power supply's
ambient temperature is within the range of operating tem-
peratures. The power supply's ambient temperature means
the temperature around the power supply unit, causing a
temperature rise inside the device.
● For use with natural air cooling, locate the unit so as to
generate thermal convection. Also keep a distance of
10mm or over from adjacent devices, for each side of the
unit.
● Select input/output wire materials and noise filters, etc.
which have enough allowance in their respective current
capacity.
● If the power supply unit is not in use for a long period of
time, it is recommended to apply input voltage for approxi-
mately 1 hour, every 2 years, to keep the quality of the
electrolytic capacitor.
● When the power supply units are in a series operation, the
nominal current is restricted according to the lowest nomi-
nal current value of the units in use. In addition, in order to
prevent damage to internal elements and other parts due to
reverse voltage applied to the unit, connect a diode (reverse
withstand voltage: twice or over the value of total output
voltage, forward current: twice or over the value of output
current, forward voltage drop: possibly minimum) to prevent
reverse voltage to the output terminal of the unit.
● Any materials used in this product do not contain the bro-
mine fire retardant (PBDPEs, PBBs).
● Any ODS is not used in production of this product.
3. Precautions in use
● Is the specified input voltage applied to the input termi-
nal?
● Are the connections of input/output terminals correct?
● Check that the connecting wires are not too thin.
● Check that the output voltage trimmer (V.ADJ) is not
turned up too high. If the output voltage trimmer (V.ADJ)
is turned up too high, it causes the OVP function to be
activated, and the output is shut down.
● Are the logic of of Remote On/Off function and external
voltage application set correcftly?
● Check that the remote sensing terminal is not open.
Applying input voltage in its open status may cause the
OVP function to be activated, and the output to be shut
down.
4. Troubleshooting
We prepare variation models to meet various needs of customers.
Variation symbol 50W/100W/150W 300W
Without cover With cover Type L Coating With cover Type L Coating
None ○
B○ ○
C○
G ○○
L○ ○ ○
M○○ ○ ○
H○○
N○○ ○
5. Variation models of power supplies
19