Allen-Bradley Bulletin 1606 User manual

Reference Manual
Bulletin 1606 Switched Mode Power Supplies
Catalog Number: 1606-XLE480FP
Index
egaPegaP
1.
Intended Use .......................................................3
2.
Installation Requirements...................................3
3.
AC-Input...............................................................4
4.
DC-Input...............................................................5
5.
Input Inrush Current ...........................................5
6.Output .................................................................6
7. Hold-up Time.......................................................8
8. DC-OK Relay Contact ..........................................8
9. Efciency and Power Losses................................9
10. Lifetime Expectancy and MTBF.........................10
11. Functional Diagram...........................................10
12. Terminals and Wiring........................................11
13. Front Side and User Elements...........................12
14. EMC....................................................................13
15. Environment ......................................................14
16.Protection Features ...........................................15
17. Safety Features..................................................15
18. Dielectric Strength ............................................16
19. Certications......................................................16
20. Physical Dimensions and Weight ..................... 17
21. Accessories ........................................................ 18
21.1. 1606-XLC Wall MountingBracket......... ...18
22. Application Notes............................................. 19
22.1. Peak Current Capability ...........................19
22.2. Back-feedingLoads ..................................19
22.3. External Input Protection .........................20
22.4. Output Circuit Breakers ............................20
22.5. Parallel Use to Increase Output Power ....21
22.6.Parallel Use for Redundancy ....................21
22.7. Series Operation .......................................22
22.8. Inductive and Capacitive Loads ................22
22.9. ChargingBatteries ....................................23
22.10. Operation on Two Phases ........................23
22.11. Use in a Tightly Sealed Enclosure ............23
22.12. MountingOrientations ............................24
•PEand symbol—PE is the abbreviation for Protective Earth and has the same meaning as the symbol .
•Earth,Ground—This document uses the term “earth” which is the same as the U.S. term “ground”.
• T.b.d.—To be defined, value or description will follow later.
• 3AC 400V—A figure displayed with the AC or DC before the value represents a nominal voltage with standard tolerances (usually ±15%)
included. E.g.: DC 12V describes a 12V battery whether it is charged (13.7V) or discharged (10V).
• 230Vac—Afigure with the unit (Vac) at the end is a momentary figure without any additional tolerance included.
• 50Hz vs. 60Hz—Unless otherwise stated, AC 230V parameters are valid at 50Hz mains frequency.
•may—A key word indicating flexibility of choice with no implied preference.
• shall—A key word indicating a mandatory requirement.
•should—A key word indicating flexibility of choice with a strongly preferred implementation.
Terminology and Abbreviations

All parameters are specified at 48V, 10A, 230Vac, 25°C ambient and after a 5 minutes run-in time, unless noted otherwise.
2Rockwell Automation Publication 1606-RM043A-EN-P — March 2014
Bulletin 1606 Switched Mode Power Supplies
Power Supply
AC 100-240V Wide-range Input
Width only 65mm
Efciency up to 93.9%
ATEX and IECEx Approved
Excellent Partial Load Efciency
20% Output Power Reserves
Safe Hiccup
PLUS
Overload Mode
Easy Fuse Trippingdue to High Overload Current
(typ. 45A for 15ms)
Active Power Factor Correction (PFC)
Minimal Inrush Current Surge
Full Power Between -25°C and +60°C
DC-OK Relay Contact
Current SharingFeature for Parallel Use
3 Year Warranty
Description
The 1606-XLE are cost optimized power supplies
without compromisingquality, reliability and
performance. The 1606-XLE series is part of Rockwell
Automation's family of power supplies. The most
outstandingfeatures of the 1606-XLE480FP are its high
efciency, electronic inrush current limitation, active
PFC and wide operational temperature range.
This series includes all the essential basic functions.
The devices include a power reserve of 20%, which
may even be used continuously at temperatures
up to +45°C. Additionally, the 1606-XLE480FP can
deliver about 4 times the nominal output current for
15ms which helps to trip fuses on faulty output branches.
High immunity to transients and power surges as well as
low electromagnetic emission, a DC-OK relay contact
and a large international approval package for a variety
of applications make this unit suitable for nearly every
situation.
Specication Quick Reference
Output voltage DC 48V
Adjustment range 48 - 56V
Output current 10A at 48V, amb<60°C
12A at 48V, amb<45°C
8.6A at 56V, amb<60°C
10.3A at 56V, amb<45°C
Output power 480W ambient <60°C
576W ambient <45°C
Output ripple < 50mVpp 20Hz to 20MHz
AC Input voltage AC 100-240V -15%/+10%
Mains frequency 50-60Hz ±6%
AC Input current 4.36/ 2.33A at 120 / 230Vac
Power factor 0.99 / 0.95 at 120 / 230Vac
AC Inrush current typ. 9 / 7A peak at 120 / 230Vac
Efciency 92.6/ 93.9% at 120 / 230Vac
Losses 38.4 / 31.2W at 120 / 230Vac
Temperature range-25°C to +70°C operational
Derating*) 12W/°C +60 to +70°C
Hold-up time typ. 26/ 26ms at 120 / 230Vac
Dimensions 65x124x127mm WxHxD
Weight 1000g/ 2.2lb
*) between 100-85Vac, see section 15.
CatalogNumbers
Power Supply 1606-XLE480FP
48-56V Standard unit
Accessory 1606-XLC
Wall mount bracket
Certication Marks
IND. CONT. E
Q.
UL 508
UL 60950-1
Marine, pending
Class I Div 2
IECEx ATEX
II 3G Ex nA nC II T3 Gc
EMC, LVD, RoHS

All parameters are specified at 48V, 10A, 230Vac, 25°C ambient and after a 5 minutes run-in time, unless noted otherwise.
Rockwell Automation Publication 1606-RM043A-EN-P — March 2014 3
Bulletin 1606 Switched Mode Power Supplies
Intended Use
•This device is designed for installation in an enclosure and is intended for the general professional use such as in industrial control, office,
communication, and instrumentation equipment.
•Do not use this power supply in aircraft, trains, nuclear equipment or similar systems where malfunction may cause severe personal injury or
threaten human life.
•This device is designed for use in hazardous, non-hazardous, ordinary or unclassified locations.
Installation Requirements
•This device may only be installed and put into operation by qualified personnel.
•This device does not contain serviceable parts. The tripping of an internal fuse is caused by an internal defect.
•Should damage or malfunction occur during installation or operation, immediately turn power off and send unit to the factory for inspection.
•Mount the unit on a DIN rail so that the terminals are located on the bottom of the unit. For other mounting orientations, see derating
requirements in this document. Please refer to section 24.13.
•This device is designed for convection cooling and does not require an external fan. Do not obstruct airflow and do not cover ventilation grid
(e.g. cable conduits) by more than 30%!
•Keep the following installation clearances: 40mm on top, 20mm on the bottom, 5mm on the left and right sides are recommended when the
device is loaded permanently with more than 50% of the rated power. Increase this clearance to 15mm in case the adjacent device is a heat
source (e.g. another power supply).
•A disconnecting mechanism shall be provided for the output of power supplies when used in applications according to CSA C22.2 No. 107.1.-01.
Notes for use in hazardous location areas:
•The unit is suitable for use in Class I Division 2 Groups A, B, C, D locations
SHOCK HAZARD: Do not use the power supply without proper grounding (Protective Earth). Use the terminal on the input
block for earth connection and not one of the screws on the housing.
- Turn power off before working on the device. Protect against inadvertent re-powering
- Make sure that the wiring is correct by following all local and national codes
- Do not modify or repair the unit
- Do not open the unit as high voltages are present inside
- Use caution to prevent any foreign objects from entering the housing
- Do not use in wet locations or in areas where moisture or condensation can be expected
- Do not touch during power-on, and immediately after power-off. Hot surfaces may cause burns.
WARNING: EXPLOSION HAZARDS!
Substitution of components may impair suitability for this environment. Do not disconnect the unit or operate the voltage adjustment or S/P jumper unless
power has been switched off or the area is known to be non-hazardous.

All parameters are specified at 48V, 10A, 230Vac, 25°C ambient and after a 5 minutes run-in time, unless noted otherwise.
4Rockwell Automation Publication 1606-RM043A-EN-P — March 2014
Bulletin 1606 Switched Mode Power Supplies
3. AC-Input
AC input nom. AC 100-240V suitable for TN-, TT- and IT mains networks
AC input range min. 100-264Vac continuous operation
min. 85-100Vac short term or with output derating (1%/V) or with
reduced ambient temperature, see Fig. 15-1,
no damage between 0 and 100Vac
min. 264-300Vac < 500ms
Allowed voltage L or N to earth max. 300Vac continuous, IEC 62103
Input frequency nom. 50–60Hz ±6%
Turn-on voltage typ. 84Vac steady-state value, see Fig. 3-1
Shut-down voltage typ. 39Vac steady-state value at 2.5A load, see Fig. 3-1
typ. 53Vac steady-state value at 5A load, see Fig. 3-1
typ. 74Vac steady-state value at 10A load, see Fig. 3-1
AC 100V AC 120V AC 230V
Input current typ. 5.25A 4.36A 2.33A at 48V, 10A, see Fig. 3-3
Power factor
*)
typ. 0.99 0.99 0.95 at 48V, 10A, see Fig. 3-4
Crest factor
**)
typ. 1.5 1.5 1.65 at 48V, 10A
Start-up delay typ. 850ms 850ms 650ms see Fig. 3-2
Rise time typ. 90ms 90ms 90ms at 48V, 10A const. current load,
0mF load capacitance, see Fig. 3-2
typ. 230ms 230ms 230ms at 48V, 10A const. current load,
10mF load capacitance, see Fig. 3-2
Turn-on overshoot max. 200mV 200mV 200mV see Fig. 3-2
*) The power factor is the ratio of the true (or real) power to the apparent power in an AC circuit.
**) The crest factor is the mathematical ratio of the peak value to RMS value of the input current waveform.
Fig. 3-1 Input voltage range Fig. 3-2 Turn-on behavior, denitions
Turn-on
85V
Rated
input range
max.
500ms
V
IN
P
OUT
300Vac264V
Shut-down
Start-up
delay Rise Time
Overshoot
- 5%
Output
Voltage
Input
Voltage
Fig. 3-3 Input current vs. output load at 48V Fig. 3-4 Power factor vs. output load
12A
123456789
0
1
2
3
4
5
6A
Input Current, typ.
10 11
230Vac
120Vac
100Vac
Output Current
Power Factor, typ.
123456789 12A
0.75
0.8
0.85
0.9
0.95
1.0
230Vac
100Vac, 120Vac
10 11
Output Current

All parameters are specified at 48V, 10A, 230Vac, 25°C ambient and after a 5 minutes run-in time, unless noted otherwise.
Rockwell Automation Publication 1606-RM043A-EN-P — March 2014 5
Bulletin 1606 Switched Mode Power Supplies
4. DC-Input
Do not operate this power supply with DC-input voltage. Use the 1606-XLE480FP-D instead.
5. Input Inrush Current
An active inrush limitation circuit limits the input inrush current after turn-on of the input voltage and after short
input voltage interruptions.
The charging current into EMI suppression capacitors is disregarded in the rst microseconds after switch-on.
AC 100V AC 120V AC 230V
Inrush current
*)
max. 13A
peak
13A
peak
13A
peak
temperature independent
typ. 11A
peak
9A
peak
7A
peak
temperature independent
Inrush energy
*)
max. 2A
2
s 2.5A
2
s 0.5A
2
s temperature independent
Inrush delay typ. 940ms 940ms 740ms start-up delay plus rise time
*) Mains interruptions > 500ms
Fig. 5-1 Typical input inrush current
behavior at nominal load and 25°C ambient

All parameters are specified at 48V, 10A, 230Vac, 25°C ambient and after a 5 minutes run-in time, unless noted otherwise.
6Rockwell Automation Publication 1606-RM043A-EN-P — March 2014
Bulletin 1606 Switched Mode Power Supplies
6. Output
Output voltage nom. 48V
Adjustment range min. 48-56V guaranteed
max. 60V
****)
at clockwise end position of potentiometer
Factory settings typ. 48.0V ±0.2%, at full load, cold unit, in “single use” mode
typ. 46.0V ±0.2%, at full load, cold unit, in “parallel use” mode
typ. 48.0V at no load, cold unit, in “parallel use” mode
Line regulation max. 10mV 85-300Vac
Load regulation max. 150mV in “single use” mode: static value, 0A 10A;
see Fig. 6-1
typ. 2000mV in “parallel use” mode: static value, 0A 10A,
see Fig. 6-2
Ripple and noise voltage max. 50mVpp 20Hz to 20MHz, 50Ohm
Output current nom. 10A at 48V, ambient temperature <60°C, see Fig. 6-1
nom. 12A
*)
at 48V, ambient temperature <45°C, see Fig. 6-1
nom. 8.6A at 56V, ambient temperature <60°C, see Fig. 6-1
nom. 10.3A
*)
at 56V, ambient temperature <45°C, see Fig. 6-1
typ. 40A up to 15ms,output voltage stays above 40V, see Fig.
6-4. This peak current is available once every ve
seconds. See section 22.1 for more peak current
measurements.
Output power nom. 480W continuously available
nom. 576W
*)
Power Boost
*)
Overload behaviour cont. current output voltage >25Vdc, see Fig. 6-1
Hiccup
PLUS
mode
**)
output voltage <25Vdc, see Fig. 6-1
Short-circuit current min. 18A
***)
load impedance <10mOhm, see Fig. 6-3
max. 22A
***)
load impedance <10mOhm, see Fig. 6-3
max. 7A
***)
average (R.M.S.) current, load impedance 100mOhm,
see Fig. 6-3
min. 40A up to15ms, load impedance <10mOhm, see Fig. 6-4
typ. 50A up to15ms, load impedance <10mOhm, see Fig. 6-4
Output capacitance typ. 2 450μF included inside the power supply
*) Power Boost
This power/ current is continuously allowed up to an ambient temperature of 45°C. Above 45°C, do not use this power/ current longer
than a duty cycle of 10% and/ or not longer than 1 minute every 10 minutes.
**) HiccupPLUS Mode
At heavy overloads (when output voltage falls below 25V), the power supply delivers continuous output current for 2s. After this, the
output is switched off for approx. 18s before a new start attempt is automatically performed. This cycle is repeated as long as the
overload exists. If the overload has been cleared, the device will operate normally. See Fig. 6-3.
***) Discharge current of output capacitors is not included.
****) This is the maximum output voltage which can occur at the clockwise end position of the potentiometer due to tolerances. There is no
guarantee that this value can be achieved. The typical value is about 57.0V (in “single use” mode).

All parameters are specified at 48V, 10A, 230Vac, 25°C ambient and after a 5 minutes run-in time, unless noted otherwise.
Rockwell Automation Publication 1606-RM043A-EN-P — March 2014 7
Bulletin 1606 Switched Mode Power Supplies
Fig. 6-1 Output voltage vs. output current,
typ.
Fig. 6-2 Output voltage in “parallel use”
mode, typ.
Output Voltage (Single Use, typ.)
0
0 12.5
8
16
24
56V
32
40
48
20A7.52.5 5 10 15 17.5
Adjustment
Range
Output Current
Continuous
current
Factory
setting
Hiccup
mode
Output Voltage (Parallel Use, typ.)
42V
048
44V
46V
48V
56V
50V
52V
54V
12A1062
Adjustment
Range
Factory
setting
Output Current
Fig. 6-3 Short-circuit on output, HiccupPLUS mode, typ. Fig. 6-4 Dynamic overcurrent capability, typ.
Output
Current
0
20A
18s 18s
18s 2s 2s
2s
t
Short -circuit Normal
operation
Normal
operation
Output Voltage (dynamic behavior, < 15ms)
0
0
8
16
24
56V
32
40
48
50A2010 30 40515253545
Adjustment
Range
Output Current

All parameters are specified at 48V, 10A, 230Vac, 25°C ambient and after a 5 minutes run-in time, unless noted otherwise.
8Rockwell Automation Publication 1606-RM043A-EN-P — March 2014
Bulletin 1606 Switched Mode Power Supplies
7. Hold-up Time
AC 100V AC 120V AC 230V
Hold-up Time typ. 65ms 65ms 65ms at 48V, 5A, see Fig. 7-1
min. 54ms 54ms 54ms at 48V, 5A, see Fig. 7-1
typ. 26ms 26ms 26ms at 48V, 10A, see Fig. 7-1
min. 21ms 21ms 21ms at 48V, 10A, see Fig. 7-1
Fig. 7-1 Hold-up time vs. input voltage Fig. 7-2 Shut-down behavior, denitions
0
10
20
30
40
80ms
90 120 155 190 230Vac
Input Voltage
50
60
Hold-up Time
48V, 10A, typ.
48V, 5A, min.
48V, 5A, typ.
70
48V, 10A, min.
- 5%
Hold-up Time
Zero Transition
Output
Voltage
Input
Voltage
8. DC-OK Relay Contact
This feature monitors the output voltage, which is produced by the power supply itself. It is independent of a back-fed
voltage from a unit connected in parallel to the power supply output.
Contact closes As soon as the output voltage reaches 90% of the adjusted output voltage level.
Contact opens As soon as the output voltage dips more than 10% below the adjusted output voltage.
Short dips will be extended to a signal length of 100ms. Dips shorter than 1ms will be ignored.
Contact ratings max. 60Vdc 0.3A, 30Vdc 1A, 30Vac 0.5A resistive load
min. 1mA at 5Vdc min. permissible load
Isolation voltage See dielectric strength table in section 18.
Fig. 8-1 DC-ok relay contact behavior
100ms
0.9* V
ADJ
<
1ms
10%
open
V
OUT
= V
ADJ
openclosed closed
>
1ms

All parameters are specified at 48V, 10A, 230Vac, 25°C ambient and after a 5 minutes run-in time, unless noted otherwise.
Rockwell Automation Publication 1606-RM043A-EN-P — March 2014 9
Bulletin 1606 Switched Mode Power Supplies
9. Efciency and Power Losses
AC 100V AC 120V AC 230V
Efciency typ. 92.0% 92.6% 93.9% at 48V, 10A
typ. 91.8% 92.3% 93.9% at 48V, 12A (Power Boost)
Average efciency
*)
typ. 91.1% 91.7% 92.8% 25% at 2.5A, 25% at 5A,
25% at 7.5A. 25% at 10A
Power losses typ. 6.1W 3.6W 2.4W at 48V, 0A
typ. 22.5W 21.6W 18.3W at 48V, 5A
typ. 41.7W 38.4W 31.2W at 48V, 10A
typ. 51.5W 48.0W 37.4W at 48V, 12A (Power Boost)
*) The average efciency is an assumption for a typical application where the power supply is loaded with 25% of the nominal load for 25%
of the time, 50% of the nominal load for another 25% of the time, 75% of the nominal load for another 25% of the time and with 100%
of the nominal load for the rest of the time.
Fig. 9-1 Efciency vs. output current at 48V,
typ
Fig. 9-2 Losses vs. output current at 48V, typ.
0 1 3 4 6 7 12A
86
84
88
90
92
96%
910
94
2 5 8
Output Current
11
a) 100Vac
b) 120Vac
c) 230Vac
b
a
Efciency
c
Power Losses
0 1 3 4 6 7 12A
10
0
20
30
40
60W
910
50
2 5 8
Output Current
11
a) 100Vac
b) 120Vac
c) 230Vac c
a
b
Fig. 9-3 Efciency vs. input voltage at 48V,
10A, typ.
Fig. 9-4 Losses vs. input voltage at 48V, 10A,
typ.
Efciency
120 180 230 264Vac
89
90
91
92
Input Voltage
93
94
95%
100
Power Losses
120 180 230 264Vac
20
25
30
35
Input Voltage
40
45
50W
100

All parameters are specified at 48V, 10A, 230Vac, 25°C ambient and after a 5 minutes run-in time, unless noted otherwise.
10 Rockwell Automation Publication 1606-RM043A-EN-P — March 2014
Bulletin 1606 Switched Mode Power Supplies
10. Lifetime Expectancy and MTBF
AC 100V AC 120V AC 230V
Lifetime expectancy*) 146 000h
*)
152 000h
*)
168 000h
*)
at 48V, 5A and 40°C
413 000h
*)
430 000h
*)
475 000h
*)
at 48V, 5A and 25°C
65 000h 70 000h 87 000h at 48V, 10A and 40°C
184 000h
*)
198 000h
*)
246 000h
*)
at 48V, 10A and 25°C
38 000h 43 000h 60 000h at 48V, 12A and 40°C
107 000h
*)
122 000h
*)
170 000h
*)
at 48V, 12A and 25°C
MTBF**) SN 29500, IEC 61709 468 000h 484 000h 537 000h at 48V, 10A and 40°C
770 000h 796 000h 882 000h at 48V, 10A and 25°C
MTBF**) MIL HDBK 217F 254 000h 261 000h 290 000h at 48V, 10A and 40°C;
Ground Benign GB40
355 000h 361 000h 395 000h at 48V, 10A and 25°C;
Ground Benign GB25
56 000h 57 000h 64 000h at 48V, 10A and 40°C;
Ground Fixed GF40
75 000h 77 000h 86 000h at 48V, 10A and 25°C;
Ground Fixed GF25
*) The Lifetime expectancy shown in the table indicates the minimum operating hours (service life) and is determined by the lifetime
expectancy of the built-in electrolytic capacitors. Lifetime expectancy is specied in operational hours and is calculated according to the
capacitor’s manufacturer specication. The manufacturer of the electrolytic capacitors only guarantees a maximum life of up to 15 years
(131 400h). Any number exceeding this value is a calculated theoretical lifetime which can be used to compare devices.
**) MTBF stands for Mean Time Between Failure, which is calculated according to statistical device failures, and indicates reliability of a
device. It is the statistical representation of the likelihood of a unit to fail and does not necessarily represent the life of a product.
The MTBF gure is a statistical representation of the likelihood of a device to fail. A MTBF gure of e.g. 1 000 000h means that
statistically one unit will fail every 100 hours if 10 000 units are installed in the eld. However, it cannot be determined if the failed unit
has been running for 50 000h or only for 100h.
11. Functional Diagram
Fig. 11-1 Functional diagram
+
+
-
-
Output
Over-
Voltage
Protection
PFC
Converter
Output
Voltage
Regulator
Power
Converter
Output
Filter
Output
Voltage
Monitor
Output
Power
Manager
Temper-
ature
Shut-
down
Input Fuse
Input Filter
Input Rectier
Active Inrush Limiter
V
OUT
L
N
DC-ok
Contact
DC-ok
LED
Single /
Parallel
DC-ok
Relay

All parameters are specified at 48V, 10A, 230Vac, 25°C ambient and after a 5 minutes run-in time, unless noted otherwise.
Rockwell Automation Publication 1606-RM043A-EN-P — March 2014 11
Bulletin 1606 Switched Mode Power Supplies
12. Terminals and Wiring
The terminals are IP20 Finger safe constructed and suitable for eld- and factory wiring.
Input and output DC-OK-Signal
Type screw terminals spring-clamp terminals
Solid wire 0.5-6mm
2
0.15-1.5mm
2
Stranded wire 0.5-4mm
2
0.15-1.5mm
2
American Wire Gauge AWG20-10 AWG26-14
Max. wire diameter 2.8mm (including ferrules) 1.5mm (including ferrules)
Wire stripping length 7mm / 0.28inch 7mm / 0.28inch
Screwdriver 3.5mm slotted or cross-head No 2 3.5mm slotted (to open the spring)
Recommended tightening torque 1Nm, 9lb.in not applicable
Instructions:
a) Use appropriate copper cables that are designed for minimum operating temperatures of:
60°C for ambient up to 45°C and
75°C for ambient up to 60°C minimum
90°C for ambient up to 70°C minimum.
b Follow national installation codes and installation regulations!
c) Ensure that all strands of a stranded wire enter the terminal connection!
d) Do not use the unit without PE connection.
e) Unused terminal compartments should be securely tightened.
f) Ferrules are allowed.
Daisy chaining:
Daisy chaining (jumping from one power supply output to the next) is allowed as long as the average output current
through one terminal pin does not exceed 25A. If the current is higher, use a separate distribution terminal block as
shown in Fig. 12-2.
Fig. 12-1 Daisy chaining of outputs Fig. 12-2 Using distribution terminals
Load
+
-
Power
Supply
+ +
- -
Output
Power
Supply
+ +
- -
Output
max 25A!
continuous
Distribution
Terminals
Load
+
-
Power
Supply
+ +
- -
Output
Power
Supply
+ +
- -
Output

All parameters are specified at 48V, 10A, 230Vac, 25°C ambient and after a 5 minutes run-in time, unless noted otherwise.
12 Rockwell Automation Publication 1606-RM043A-EN-P — March 2014
Bulletin 1606 Switched Mode Power Supplies
13. Front Side and User Elements
Fig. 13-1 Front side
AInput Terminals (screw terminals)
N, L Line input
PE (Protective Earth) input
BOutput Terminals (screw terminals, two pins per pole)
+ Positive output
–Negative (return) output
COutput voltage potentiometer
Open the ap to adjust the output voltage. Factory set: 48.0V
DDC-OK LED (green)
On, when the output voltage is >90% of the adjusted output voltage
EDC-OK Relay Contact (quick-connect spring-clamp terminals)
The DC-OK relay contact is synchronized with the DC-OK LED.
See section for details.
F“Parallel Use” “Single Use” selector
Set jumper to “Parallel Use” when power supplies are connected in parallel
to increase the output power. In order to achieve a sharing of the load
current between the individual power supplies, the “parallel use” regulates
the output voltage in such a manner that the voltage at no load is approx.
4% higher than at nominal load. See also section 24.5. A missing jumper is
equal to a “Single Use” mode.
C
D
E
F

All parameters are specified at 48V, 10A, 230Vac, 25°C ambient and after a 5 minutes run-in time, unless noted otherwise.
Rockwell Automation Publication 1606-RM043A-EN-P — March 2014 13
Bulletin 1606 Switched Mode Power Supplies
14. EMC
The power supply is suitable for applications in industrial environment as well as in residential, commercial and light
industry environment without any restrictions. A detailed EMC report is available upon request.
EMC Immunity According generic standards: EN 61000-6-1 and EN 61000-6-2
Electrostatic discharge EN 61000-4-2 contact discharge
air discharge
8kV
15kV
Criterion A
Criterion A
Electromagnetic RF eld EN 61000-4-3 80MHz-2.7GHz 20V/m Criterion A
Fast transients (Burst) EN 61000-4-4 input lines
output lines
DC-OK signal (coupling clamp)
4kV
2kV
2kV
Criterion A
Criterion A
Criterion A
Surge voltage on input EN 61000-4-5 L N
L PE, N PE
2kV
4kV
Criterion A
Criterion A
Surge voltage on output EN 61000-4-5 + -
+ / - PE
1kV
2kV
Criterion A
Criterion A
Surge voltage on DC-OK EN 61000-4-5 DC-OK signal PE 1kV Criterion A
Conducted disturbance EN 61000-4-6 0.15-80MHz 20V Criterion A
Mains voltage dips EN 61000-4-11 0% of 100Vac
40% of 100Vac
70% of 100Vac
0% of 200Vac
40% of 200Vac
70% of 200Vac
0Vac, 20ms
40Vac, 200ms
70Vac, 500ms
0Vac, 20ms
80Vac, 200ms
140Vac, 500ms
Criterion A
Criterion C
Criterion A
Criterion A
Criterion A
Criterion A
Voltage interruptions EN 61000-4-11 0% of 200Vac (=0V) 5000ms Criterion C
Voltage sags SEMI F47 0706 dips on the input voltage according to SEMI F47 standard
80% of 120Vac (96Vac)
70% of 120Vac (84Vac)
50% of 120Vac (60Vac)
1000ms
500ms
200ms
Criterion A
Criterion A
Criterion A
Powerful transients VDE 0160 over entire load range 750V, 1.3ms Criterion A
Criteria:
A: Power supply shows normal operation behavior within the dened limits.
C: Temporary loss of function is possible. Power supply may shut down and restart by itself. The power supply will incur no damage or
hazard.
EMC Emission According generic standards: EN 61000-6-3 and EN 61000-6-4
Conducted emission
input lines
EN 55011, EN 55022, FCC Part 15, CISPR 11, CISPR 22 Class B
Conducted emission
output lines**)
IEC/CISPR 16-1-2, IEC/CISPR 16-2-1 limits for DC power port
according EN 61000-6-3 fullled
Radiated emission EN 55011, EN 55022 Class B
Harmonic input current EN 61000-3-2 fullled for class A equipment
Voltage uctuations, icker EN 61000-3-3 fullled*)
This device complies with FCC Part 15 rules.
Operation is subjected to following two conditions: (1) this device may not cause harmful interference, and (2) this
device must accept any interference received, including interference that may cause undesired operation.
*) tested with constant current loads, non pulsing
**) for information only, not mandatory for EN 61000-6-3

All parameters are specified at 48V, 10A, 230Vac, 25°C ambient and after a 5 minutes run-in time, unless noted otherwise.
14 Rockwell Automation Publication 1606-RM043A-EN-P — March 2014
Bulletin 1606 Switched Mode Power Supplies
Switching Frequencies The power supply has two converters with two different switching frequencies included.
Switching frequency 1 70kHz to 130kHz PFC converter, input voltage and output power dependent
Switching frequency 2 80kHz to 140kHz Main converter, output power dependent
15. Environment
Operational temperature
*)
-25°C to +70°C (-13°F to 158°F) reduce output power according Fig. 15-1
Storage temperature -40 to +85°C (-40°F to 185°F) for storage and transportation
Output de-rating 6.4W/°C
12W/°C
45°C to 60°C (113°F to 140°F)
60°C to 70°C (140°F to 158°F)
Humidity
**)
5 to 95% r.h. IEC 60068-2-30
Vibration sinusoidal 2-17.8Hz: ±1.6mm; 17.8-500Hz: 2g
***)
2 hours / axis
IEC 60068-2-6
Shock 30g 6ms, 20g 11ms
***)
3 bumps / direction, 18 bumps in total
IEC 60068-2-27
Altitude 0 to 2000m (0 to 6 560ft) without any restrictions
2000 to 6000m (6 560 to 20 000ft) reduce output power or ambient temperature,
see Fig. 15-2
IEC 62103, EN 50178, overvoltage category II
Altitude de-rating 30W/1000m or 5°C/1000m > 2000m (6500ft), see Fig. 15-2
Over-voltage category III IEC 62103, EN 50178, altitudes up to 2000m
II altitudes from 2000m to 6000m
Degree of pollution 2 IEC 62103, EN 50178, not conductive
LABS compatibility The unit does not release any silicone or other LABS-critical substances and is suitable for
use in paint shops.
Audible noise At load currents below 1A some audible noise will be emitted from the power supply
*) Operational temperature is the same as the ambient temperature and is dened as the air temperature 2cm below the unit.
**) Do not energize in the presence of condensation.
***) Higher levels allowed when using the 1606-XLC wall mounting bracket.
Fig. 15-1 Output current vs. ambient temp. Fig. 15-2 Output current vs. altitude
Allowed Output Current at 48V
0
-25 0 20 40 70°C
2A
4A
6A
8A
10A
12A
60
B
A
Ambient Temperature
A...100 to 264Vac, continuous
B... 85Vac, continuous
C... Short term
C
0
0 2000m 4000m 6000m
2A
4A
6A
8A
10A
12A
B
A
C
A...Tamb<60°C
B...Tamb<50°C
C...Tamb<40°C
D...Shortterm
D
Allowable Output Current at 48V
Altitude
See section 3 for derating requirements for input voltages between 85Vac and 100Vac.

All parameters are specified at 48V, 10A, 230Vac, 25°C ambient and after a 5 minutes run-in time, unless noted otherwise.
Rockwell Automation Publication 1606-RM043A-EN-P — March 2014 15
Bulletin 1606 Switched Mode Power Supplies
16. Protection Features
Output protection Electronically protected against overload, no-load and short-circuits*)
Output over-voltage protection typ. 58.5Vdc
max. 60Vdc
In case of an internal power supply defect, a redundant
circuit limits the maximum output voltage. The output
shuts down and automatically attempts to restart.
Degree of protection IP 20 EN/IEC 60529
Caution: For use in a controlled environment according
to CSA 22.2 No 107.1-01.
Penetration protection > 5mm e.g. screws, small parts
Over-temperature protection yes Output shut-down with automatic restart
Input transient protection MOV (Metal Oxide Varistor)
Internal input fuse included not user replaceable
*) In case of a protection event, audible noise may occur.
17. Safety Features
Input / output separation*) SELV IEC/EN 60950-1
PELV IEC/EN 60204-1, EN 50178, IEC 62103, IEC 60364-4-41
double or reinforced insulation
Class of protection I PE (Protective Earth) connection required
Isolation resistance > 5MOhm input to output, 500Vdc
PE resistance < 0.1Ohm
Touch current (leakage current) typ. 0.14mA / 0.37mA 100Vac, 50Hz, TN-,TT-mains / IT-mains
typ. 0.20mA / 0.55mA 120Vac, 60Hz, TN-,TT-mains / IT-mains
typ. 0.35mA / 0.87mA 230Vac, 50Hz, TN-,TT-mains / IT-mains
max. 0.17mA / 0.46mA 110Vac, 50Hz, TN-,TT-mains / IT-mains
max. 0.26mA / 0.67mA 132Vac, 60Hz, TN-,TT-mains / IT-mains
max. 0.46mA / 1.08mA 264Vac, 50Hz, TN-,TT-mains / IT-mains
*) double or reinforced insulation

All parameters are specified at 48V, 10A, 230Vac, 25°C ambient and after a 5 minutes run-in time, unless noted otherwise.
16 Rockwell Automation Publication 1606-RM043A-EN-P — March 2014
Bulletin 1606 Switched Mode Power Supplies
18. Dielectric Strength
The output voltage is oating and has no ohmic connection to the ground. Type and factory tests are conducted by
the manufacturer. Field tests may be conducted in the eld using the appropriate test equipment which applies the
voltage with a slow ramp (2s up and 2s down). Connect all input-terminals together as well as all output poles before
conducting the test. When testing, set the cut-off current settings to the value in the table below.
Fig. 18-1 Dielectric strength
A B C D
Type test 60s 2500Vac 3000Vac 1000Vac 500Vac
Factory test 5s 2500Vac 2500Vac 500Vac 500Vac
Field test 5s 2000Vac 2000Vac 500Vac 500Vac
Cut-off current setting > 15mA > 15mA > 20mA > 1mA
DA
C
B
B
*)
N
L
Input DC-ok
Earth, PE Output
-
+
To meet the PELV requirements according to EN60204-1 § 6.4.1, we
recommend that either the + pole, the – pole or any other part of
the output circuit be connected to the protective earth
system. This helps to avoid situations in which a load starts
unexpectedly or cannot be switched off when unnoticed ground
faults occur.
B*) When testing input to DC-OK ensure that the max. voltage between DC-OK and the output is not exceeded (column D). We recommend
connecting DC-OK pins and the output pins together when performing the test.
19. Certications
EC Declaration of Conformity
The CE Mark indicates conformance with the
- EMC directive 2004/108/EC,
- Low-voltage directive (LVD) 2006/95/EC and
UL 508
IND. CONT. E
Q.
Listed E56639 for use in the U.S.A. (UL 508) and Canada
(C22.2 No. 60950)
Industrial Control Equipment
UL 60950-1
RECOGNIZED E56639 for use in the U.S.A. (UL 60950-1)
and Canada (C22.2 No. 60950-1)
Information Technology Equipment, Level 3
CSA C22.2 No.107.1,
ISA 12.12.01
CSA Certied under File Number 240020. CERTIFIED for use
in the U.S.A. (ISA 12.12.01) and Canada (C22.2 No. 213)
Hazardous Location Class I, Div. 2, Groups A, B, C, D
ATEX
II 3G Ex nA nC II T3 Gc
GOST R
GOST R certication is applicable for products for sale and use
within Russia. See below for link to the Certicate.
II 3G Ex nA nC II T3 Gc
C-Tick C-tick compliance is for products intended for sale and use within
the Australian market. See below for link to the C-tick Declarations
of Conformity.
Product certification information (including Certificates and Declarations of Conformity) can be found at www.ab.com/certification.

All parameters are specified at 48V, 10A, 230Vac, 25°C ambient and after a 5 minutes run-in time, unless noted otherwise.
Rockwell Automation Publication 1606-RM043A-EN-P — March 2014 17
Bulletin 1606 Switched Mode Power Supplies
20. Physical Dimensions and Weight
Weight 1000g / 2.2lb
DIN Rail Use 35mm DIN rails according to EN 60715 or EN 50022 with a height of 7.5 or 15mm.
The DIN rail height must be added to the unit depth (127mm) to calculate the total required
installation depth.
Installation Clearances See section 2.
Fig. 20-1 Front view Fig. 20-2 Side view

All parameters are specified at 48V, 10A, 230Vac, 25°C ambient and after a 5 minutes run-in time, unless noted otherwise.
18 Rockwell Automation Publication 1606-RM043A-EN-P — March 2014
Bulletin 1606 Switched Mode Power Supplies
21. Accessories
21.1. 1606-XLC Wall Mounting Bracket
This bracket is used to mount the power
supply onto a at surface without a DIN rail.

All parameters are specified at 48V, 10A, 230Vac, 25°C ambient and after a 5 minutes run-in time, unless noted otherwise.
Rockwell Automation Publication 1606-RM043A-EN-P — March 2014 19
Bulletin 1606 Switched Mode Power Supplies
22. Application Notes
22.1. Peak Current Capability
The power supply can deliver peak currents (up to several milliseconds) which are higher than the specied short term
currents.
This helps to start current demanding loads. Solenoids, contactors and pneumatic modules often have a steady state
coil and a pick-up coil. The inrush current demand of the pick-up coil is several times higher than the steady-state
current and usually exceeds the nominal output current (including PowerBoost). The same situation applies when
starting a capacitive load.
The peak current capability also ensures the safe operation of subsequent circuit breakers of load circuits. The load
branches are often individually protected with circuit breakers or fuses. In case of a short or an overload in one branch
circuit, the fuse or circuit breaker need a certain amount of over-current to open in a timely manner. This avoids
voltage loss in adjacent circuits.
The extra current (peak current) is supplied by the power converter and the built-in large sized output capacitors of
the power supply. The capacitors get discharged during such an event, which causes a voltage dip on the output. The
following two examples show typical voltage dips:
Fig. 22-1 Peak load with 2x the nominal
current for 50ms, typ.
Fig. 22-2 Peak load with 5x the nominal
current for 5ms, typ.
10ms/DIV
Output
Voltage
Output
Current
48V
0A
20A
32V
1ms/DIV
Output
Voltage
Output
Current
48V
0A
50A
37V
Peak load 20A (resistive) for 50ms
Output voltage dips from 48V to 32V. Peak load 50A (resistive) for 5ms
Output voltage dips from 48V to 37V.
Please note: The DC-OK relay triggers when the voltage dips more than 10% for longer than 1ms.
Peak current voltage dips typ. from 48V to 32V at 20A for 50ms, resistive load
typ. from 48V to 39V at 50A for 2ms, resistive load
typ. from 48V to 37V at 50A for 5ms, resistive load
22.2. Back-feeding Loads
Loads such as decelerating motors and inductors can feed voltage back to the power supply. This feature is also called
return voltage immunity or resistance against Back- E.M.F. (Electro Magnetic Force).
This power supply is resistant and does not show malfunctioning when a load feeds back voltage to the power supply.
It does not matter whether the power supply is on or off.
The maximum allowed feed-back-voltage is 63Vdc. The absorbing energy can be calculated according to the built-in
large sized output capacitor which is specied in section 6.

All parameters are specified at 48V, 10A, 230Vac, 25°C ambient and after a 5 minutes run-in time, unless noted otherwise.
20 Rockwell Automation Publication 1606-RM043A-EN-P — March 2014
Bulletin 1606 Switched Mode Power Supplies
22.3. External Input Protection
The unit is tested and approved for branch circuits up to 30A (UL) and 32A (IEC). An external protection is only
required if the supplying branch has an ampacity greater than this. Check also local codes and local requirements. In
some countries local regulations might apply.
If an external fuse is necessary or utilized, minimum requirements need to be considered to avoid nuisance tripping of
the circuit breaker. A minimum value of 10A B- or C-Characteristic breaker should be used.
22.4. Output Circuit Breakers
Standard miniature circuit breakers (MCBs or UL1077 circuit breakers) are commonly used for AC supply systems and
may also be used on 48V branches.
MCBs are designed to protect wires and circuits. If the ampere value and the characteristics of the MCB are adapted to
the wire size that is used, the wiring is considered as thermally safe wether the MCB opens or not.
To avoid voltage dips and under-voltage situations in adjacent 48V branches which are supplied by the same source, a
fast (magnetic) tripping of the MCB is desired. A quick shutdown within 10ms is necessary corresponding roughly to
the ride-through time of PLCs. This requires power supplies with high current reserves and large output capacitors.
Furthermore, the impedance of the faulty branch must be sufciently small in order for the current to actually ow.
The best current reserve in the power supply does not help if Ohm’s law does not permit current ow. The following
table has typical test results showing which B- and C-Characteristic MCBs magnetically trip depending on the wire cross
section and wire length.
Fig. 22-3 Test circuit Maximal wire length*) for a fast (magnetic) tripping:
0.75mm² 1.0mm² 1.5mm² 2.5mm²
C-2A 74m 98m 134m 198m
C-3A 57m 74m 106m 168m
C-4A 43m 56m 73m 114m
C-6A 11m 16m 23m 33m
C-8A 1m 1m 2m 3m
B-6A 19m 36m 51m 82m
B-10A 9m 12m 18m 27m
MCB
Power Supply
AC
DC
+
-
+
-
Load
Wire length
S1... Fault simulation switch
S1
B-13A 7m 10m 16m 24m
*) Don’t forget to consider twice the distance to the load (or cable length) when calculating the total wire length (+ and – wire).