Delta DRP048V060W1B Series Instruction Manual

TECHNICAL DATASHEET
CliQ II DIN Rail Power Supply
48 V 60 W 1 Phase / DRP048V060W1B

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (September 2021, Rev. 06)
1
Highlights & Features
•Universal AC input voltage range
•Power will not de-rate for the entire input voltage range
•Power Boost of 150% for 5 seconds
•Full corrosion resistant aluminium casing
•Conforms to harmonic current IEC/EN 61000-3-2, Class A
•Extreme low temperature cold start at -40°C
•Conformal coating on PCBAs to protect against common
dust and chemical pollutants
•Hazardous Locations approval to ATEX and Class I, Div 2
(DRP048V060W1BA)
•Certified according to IEC/EN/UL 62368-1
Safety Standards
CB Certified for worldwide use
Model Number: DRP048V060W1B
Unit Weight: 0.38 kg (0.84 lb)
Dimensions (L x W x D): 121 x 32 x 125 mm
(4.76 x 1.26 x 4.92 inch)
General Description
The CliQ II DIN rail power supply series from one of the world’s leading power supply companies, Delta Electronics Group, offers output
voltage of 48 V. These products are encased in rugged yet lightweight full aluminium body that can withstand shock and vibration
according to IEC 60068-2 standard. The series of single phase products can operate over a wide temperature range of -25°C to +80°C.
These products also feature universal AC input voltage range from 85 Vac to 264 Vac and the power will not de-rate throughout the entire
range. Another great feature is the conformal coating on the PCBA which allows selected models to be certified to ATEX and Class I, Div
2 for use in hazardous locations. The design conforms to harmonic current emission IEC/EN 61000-3-2, Class A.
Model Information
CliQ II DIN Rail Power Supply
Model Number Input Voltage Range Rated Output V oltage Rated Output Curr ent
DRP048V060W1B85-264 Vac (120-375 Vdc) 48 Vdc 1.25 A
Model Numbering
DR P048V
060W
1
B

DIN Rail Power Supply Output Voltage Output Power Single Phase CliQ II Series A - Metal Case,
with Class I, Div 2
N - Metal Case,
without Class I, Div 2

TECHNICAL DATASHEET
CliQ II DIN Rail Power Supply
48 V 60 W 1 Phase / DRP048V060W1B

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (September 2021, Rev. 06)
2
Specifications
Input Ratings / Characteristics
Nominal Input Voltage 100-240 Vac
Input Voltage Range 85-264 Vac
Nominal Input Frequency 50-60 Hz
Input Frequency Range 47-63 Hz
DC Input Voltage Range* 120-375 Vdc
Input Current < 1.40 A @ 115 Vac, < 0.80 A @ 230 Vac
Efficiency at 100% Load > 91.0% @ 115 Vac, > 92.0% @ 230 Vac
Max Power Dissipation 0% load < 0.5 W @ 115 Vac & 230 Vac
100% load < 5.9 W @ 115 Vac, < 5.2 W @ 230 Vac
Max Inrush Current (Cold Start) < 20 A @ 115 Vac, < 35 A @ 230 Vac
Leakage Current < 1 mA @ 240 Vac
*Fulfills the test conditions for this range.
Output Ratings / Characteristics**
Nominal Output Voltage 48 Vdc
Factory Set Point Tolerance 48 Vdc ± 1%
Output Voltage Adjustment Range 48-56 Vdc
Output Current 1.25 A (continuously operating at 48 V)
1.875 A (Power Boost for 5 seconds at 48 V, refer to the
details in the Functions section)
Output Power 60 W (continuously operating at 48 V)
90 W (Power Boost for 5 seconds at 48 V
, refer to the details in
the Functions section)
Line Regulation < 0.5% (@ 85-264 Vac input, 100% load)
Load Regulation < 1.0% (@ 85-264 Vac input, 0-100% load)
PARD*** (20 MHz) < 200 mVpp
Rise Time
< 100 ms @ nominal input (100% load)
Start-up Time < 1,500 ms @ nominal input (100% load)
Hold-up Time > 20 ms @ 115 Vac,
> 125 ms @ 230 Vac (100% load)
Dynamic Response
(Overshoot & Undershoot O/P Voltage)
± 2% @ 85-264 Vac input, 0-100% load
(Slew Rate: 0.1 A/μs, 50% duty cycle @ 5 Hz)
Start-up with Capacitive Loads 5,000 µF Max
**For power de-rating from 50°C to 80°C, see power de-rating on page 3.
***PARD is measured with an AC coupling mode, 5cm wires, and in parallel with 0.1 μF ceramic capacitor & 47 μF electrolytic capacitor.

TECHNICAL DATASHEET
CliQ II DIN Rail Power Supply
48 V 60 W 1 Phase / DRP048V060W1B

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (September 2021, Rev. 06)
3
Mechanical
Case Cover / Chassis
Aluminium
Dimensions (L x W x D) 121 x 32 x 125 mm (4.76 x 1.26 x 4.92 inch)
Unit Weight 0.38 kg (0.84 lb)
Indicator Green LED DC OK
Cooling System Convection
Terminal Input 3 Pins (Rated 300 V/15 A)
Output 2 Pins (Rated 300 V/15 A)
Wire Input / Output AWG 20-12
Mounting Rail Standard TS35 DIN Rail in accordance with EN 60715
Noise (1 Meter from power supply) Sound Pressure Level (SPL) < 40 dBA
Environment
Surrounding Air Temperature
Operating
-25°C to +80°C (Cold Start at -40°C)
Storage -40°C to +85°C
Power De-rating Vertical Mounting > 50°C de-rate power by 2.5% / °C
Horizontal Mounting > 50°C de-rate power by 2.5% / °C
Operating Humidity 5 to 95% RH (Non-Condensing)
Operating Altitude 0 to 2,500 Meters (8,200 ft.)
Shock Test Non-Operating IEC 60068-2-27, 30 G (300 m/S²) for a duration of 18 ms,
1 time per direction, 2 times in total
Vibration Non-Operating IEC 60068-2-6, 10 Hz to 500 Hz @ 30 m/S² (3 G peak);
60 min per axis for all X, Y, Z direction
Bump Test Operating IEC 60068-2-29, Half Sine Wave: 10 G for a duration of 11 ms,
1,000 times per direction, 6,000 times in total
Over Voltage Category III According to IEC/EN 62477-1 / EN 60204-
1
(clearance and creepage distances) and
IEC 62103 (safety part)
Pollution Degree 2
Protections
Overvoltage < 57 V, SELV Output, Hiccup Mode,
Non-Latching (Auto-Recovery)
Overload / Overcurrent > 150% of rated load current, Hiccup Mode,
Non-Latching (Auto-Recovery)
Over Temperature < 80°C Surrounding Air Temperature @ 100% load,
Non-Latching (Auto-Recovery)
Short Circuit Hiccup Mode, Non-Latching
(Auto-Recovery when the fault is removed)
Internal Fuse at L pin T 3.15 A H
Degree of Protection IP20
Protection Against Shock Class I with PE* connection
*PE: Primary Earth

TECHNICAL DATASHEET
CliQ II DIN Rail Power Supply
48 V 60 W 1 Phase / DRP048V060W1B

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (September 2021, Rev. 06)
4
Reliability Data
MTBF > 800,000 hrs. as per Telcordia SR-332
I/P: 115 Vac, O/P: 100% load, Ta: 25°C
Expected Cap Life Time 10 years (115 Vac & 230 Vac, 50% load @ 40°C)
Safety Standards / Directives
Electrical Equipment of Machines
EN/BS EN 60204-1 (over voltage category III)
Electrical Equipment for Use in Electrical Power Installations IEC/EN/BS EN 62477-1 / IEC 62103
Safety Entry Low Voltage SELV (IEC 60950-1)
Electrical Safety SIQ Bauart EN 62368-1
UL/cUL recognized UL 60950-1 and CSA C22.2 No. 60950-1 (File No. E191395)
UL 62368-1 and CSA C22.2 No. 62368-1 (File No. E191395)
CB scheme IEC 60950-1, IEC 62368-1
UKCA BS EN 62368-1
Industrial Control Equipment UL/cUL listed UL 508 and CSA C22.2 No. 107.1-01 (File No. E315355)
CSA CSA C22.2 No. 107.1-01 (File No. 181564)
Hazardous Location / ATEX
(For DRP048V060W1BA)
cCSAus CSA C22.2 No. 213-M1987 and ANSI / ISA 12.12.01:2007
[Class I, Division 2, Group A, B, C, D T4, Ta= -25°C to +80°C
(> +50°C derating)]
ATEX EN 60079-0:2009, EN 60079-15:2010 [ II 3G Ex nA nC IIC
T4 Gc, Ta= -25°C to +80°C (> +50°C derating)]
Certificate No. EPS 12 ATEX 1 491 X
CE In conformance with EMC Directive 2014/30/EU and
Low Voltage Directive 2014/35/EU
For DRP048V060W1BA:
In conformance with Equipment for explosive atmospheres
(ATEX) directive 2014/34/EU
UKCA
In conformance with Electrical Equipment (Safety) Regulations
2016 No. 1011 and
The Electromagnetic Compatibility Regulations 2016 No. 1091
Galvanic Isolation Input to Output 4.0 KVac
Input to Ground 1.5 KVac
Output to Ground 1.5 KVac

TECHNICAL DATASHEET
CliQ II DIN Rail Power Supply
48 V 60 W 1 Phase / DRP048V060W1B

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (September 2021, Rev. 06)
5
EMC
Emissions (CE & RE) Generic Standards: CISPR 32, EN/BS EN 55032, CISPR 11,
EN/BS EN 55011, FCC Title 47: Class B
Component Power Supply for General Use EN/BS EN 61204-3
Immunity Generic Standards: EN/BS EN 55024, EN/BS EN 61000-6-1,
EN/BS EN 61000-6-2
Electrostatic Discharge IEC 61000-4-2 Level 4 Criteria A1)
Air Discharge: 15 kV
Contact Discharge: 8 kV
Radiated Field IEC 61000-4-3 Level 3 Criteria A1)
80 MHz-1 GHz, 10 V/M, 80% modulation (1 kHz)
Electrical Fast Transient / Burst IEC 61000-4-4 Level 3 Criteria A1)
2 kV
Surge IEC 61000-4-5 Level 3 Criteria A1)
Common Mode2): 2 kV
Differential Mode
3)
: 1 kV
Conducted IEC 61000-4-6 Level 3 Criteria A1)
150 kHz-80 MHz, 10Vrms
Power Frequency Magnetic Fields IEC 61000-4-8 Criteria A1)
10 A/Meter
Voltage Dips and Interruptions IEC 61000-4-11 100% dip; 1 cycle (20 ms); Self Recoverable
Low Energy Pulse Test (Ring Wave) IEC 61000-4-12 Level 3 Criteria A1)
Common Mode2): 2 kV
Differential Mode
3)
: 1 kV
Harmonic Current Emission IEC/EN/BS EN 61000-3-2, Class A
Voltage Fluctuation and Flicker IEC/EN/BS EN 61000-3-3
1) Criteria A: Normal performance within the specification limits
2) Asymmetrical: Common mode (Line to earth)
3) Symmetrical: Differential mode (Line to line)

TECHNICAL DATASHEET
CliQ II DIN Rail Power Supply
48 V 60 W 1 Phase / DRP048V060W1B

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (September 2021, Rev. 06)
6
Block Diagram

TECHNICAL DATASHEET
CliQ II DIN Rail Power Supply
48 V 60 W 1 Phase / DRP048V060W1B

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (September 2021, Rev. 06)
7
Device Description
1) Input terminal block connector
2) Output terminal block connector
3) DC Voltage adjustment potentiometer
4) DC OK control LED (Green)
5) Universal mounting rail system
Dimensions
L x W x D: 121 x 32 x 125 mm (4.76 x 1.26 x 4.92 inch)

TECHNICAL DATASHEET
CliQ II DIN Rail Power Supply
48 V 60 W 1 Phase / DRP048V060W1B

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (September 2021, Rev. 06)
8
Engineering Data
Output Load De-rating VS Surrounding Air Temperature
Output Load De-rating VS Input Voltage
Note
1. Power supply components may degrade, or
be damaged, when the power supply is
continuously used outside the shaded region,
refer to the graph shown in Fig. 1.
2. If the output capacity is not reduced when the
surrounding air temperature exceeds its
specification as defined on Page 3 under
“Environment”, the device may run into Over
Temperature Protection. When activated, the
output voltage will go into bouncing mode and
will recover when the surrounding air
temperature is lowered or the load is reduced
as far as necessary to keep the device in
working condition.
3. In order for the device to function in the
manner intended, it is also necessary to keep
a safety distance as recommended in the
safety instructions while the device is in
operation.
4. Depending on the surrounding air temperature
and output load delivered by the power
supply, the device can be very hot!
5. If the device has to be mounted in any other
orientation, please contact [e-mail]
for more details.
Fig. 1 De-rating for Vertical and Horizontal Mounting Orientation
> 50°C de-rate power by 2.5% / °C
No output power de-rating across the entire
input voltage range

TECHNICAL DATASHEET
CliQ II DIN Rail Power Supply
48 V 60 W 1 Phase / DRP048V060W1B

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (September 2021, Rev. 06)
9
Assembly & Installation
The power supply unit (PSU) can be mounted on 35 mm DIN rails in accordance with EN 60715. The device should be installed with
input terminal block at the bottom.
Each device is delivered ready to install.
Mounting
Dismounting
Fig. 2.1 Mounting
Snap on the DIN rail as shown in Fig. 2.1:
1. Tilt the unit upwards and insert it onto the DIN rail.
2. Push downwards until stopped.
3. Press against the bottom front side for locking.
4. Shake the unit slightly to ensure that it is secured.
Fig. 2.2 Dismounting
To uninstall, pull or slide down the latch with screw driver as
shown in Fig. 2.2. Then slide the power supply unit (PSU) in the
opposite direction, release the latch and pull out the power
supply unit (PSU) from the rail.
CAUTION: Must tighten wire to housing (Fig. 3.1) before
plugging into the terminal block connection (Fig. 3.2).
In accordance to EN 60950 / UL 60950 and EN 62368 / UL
62368, flexible cables require ferrules. Use appropriate copper
cables designed to sustain operating temperature of 60°C / 75°C
or more to fulfill UL requirements.
Connection
Fig. 3.1 Fig. 3.2

TECHNICAL DATASHEET
CliQ II DIN Rail Power Supply
48 V 60 W 1 Phase / DRP048V060W1B

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (September 2021, Rev. 06)
10
Safety Instructions
Vertical Mounting
•ALWAYS switch mains of input power OFF before connecting and disconnecting the input voltage to the unit. If mains are not turned
OFF, there is risk of explosion / severe damage.
•To guarantee sufficient convection cooling, please refer to the following instructions to ensure sufficient clearance around
the device.
Vertical Mounting: 50 mm (1.97 inch) above and below the device as well as a lateral distance of 20 mm (0.79 inch) to other
units.
Horizontal Mounting: 20 mm (0.79 inch) above and below the device as well as a lateral distance of 50 mm (1.97 inch) to
other units.
•Note that the enclosure of the device can become very hot depending on the surrounding air temperature and load of the power
supply. Risk of burns!
•Only plug in and unplug connectors when power is turned off!
•DO NOT insert any objects into the unit.
•Hazardous voltages may be present for up to 5 minutes after the input mains voltage is disconnected. Do not touch the unit during
this time.
•The power supplies are built in units and must be installed in a cabinet or room (condensation free environment and indoor location)
that is relatively free of conductive contaminants.
•CAUTION: “For use in a controlled environment”.
For DRP048V060W1BA:
•The power supplies unit must be installed in an IP54 enclosure or cabinet in the final installation. The enclosure or cabinet must
comply with EN 60079-0 or EN 60079-15.
•Warning: Explosion Hazard - Substitution of components may impair suitability for Class I, Division 2.
•Warning: Explosion Hazard - Do not disconnect equipment or adjust potentiometer unless the power has been switched off or the
area is known to be non-hazardous.
Horizontal Mounting

TECHNICAL DATASHEET
CliQ II DIN Rail Power Supply
48 V 60 W 1 Phase / DRP048V060W1B

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (September 2021, Rev. 06)
11
Functions
Graph illustrating the Start-up Time, Rise Time, and Hold-up Time
Start-up Time
The time required for the output voltage to reach 90% of its final steady state set value, after the input voltage is applied.
Rise Time
The time required for the output voltage to change from 10% to 90% of its final steady state set value.
Hold-up Time
Time between the collapse of the AC input voltage, and the output falling to 95% of its steady state set value.
Inrush Current
Inrush current is the peak, instantaneous, input current measured
and, occurs when the input voltage is first applied. For AC input
voltages, the maximum peak value of inrush current will occur
during the first half cycle of the applied AC voltage. This peak value
decreases exponentially during subsequent cycles of AC voltage.
Dynamic Response
The power supply output voltage will remains within ±2% of its
steady state value, when subjected to a dynamic load from 0% to
100% of its rated current.
50% duty cycle / 5Hz

TECHNICAL DATASHEET
CliQ II DIN Rail Power Supply
48 V 60 W 1 Phase / DRP048V060W1B

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (September 2021, Rev. 06)
12
Power Boost
  (%)= 
 
   (
) = (  × ) + (-  ×)
 
OR
-  =
 ×   (  × )

An example of Power Boost and Average Output Power
Power Boost Peak Power
(WP)
Power Boost
Duration (TP) Duty Cycle Non-Peak Power (WN)
Non-Peak Power
Duration (TN)
Total Time
(T)
150% 90 5 sec 10% 57 W 45 sec 50 sec
150% 90 5 sec 35% 44 W 9.3 sec 14.3 sec
120% 72 10 sec 20% 57 W 40 sec 50 sec
120% 72 10 sec 35% 54 W 18.5 sec 28.5 sec
It is not recommended to prolong the duration of Power Boost to be longer than the specified duty cycle calculation, this may cause
damage to the PSU.
External Input Protection Device
The unit is protected with internal fuse (not replaceable) at L pin and it has been tested and approved on 20 A (UL) and 16 A (IEC) branch
circuits without additional protection device. An external protection device is only required if the supplying branch has an ampacity greater
than above. Thus, if an external protective device is necessary, or, utilized, please refer a minimum value of 8 A B- or 4 A C- characteristic
breaker.
Power Boost is the reserve power available
constantly that allows reliable startup to support
sudden and short spike of loads with high inrush
current typically during turn on to remove the need
of more expensive higher rated power supply unit.
After the output has reached its steady state set
value, the power supply can support surge loads
with a higher short-term power demand up to 150%
of maximum rated load (IOMax), for a maximum
duration of 5 seconds. The Power Boost is also
available to repeatedly basis with according to the
condition of an average (R.M.S) output power shall
not exceed continuous operating condition or refer
to duty cycle calculation below.
Fig. 4 Duty Cycle Calculation

TECHNICAL DATASHEET
CliQ II DIN Rail Power Supply
48 V 60 W 1 Phase / DRP048V060W1B

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (September 2021, Rev. 06)
13
Overload & Overcurrent Protections (Auto-Recovery)
The power supply’s Overload (OLP) and Overcurrent (OCP)
Protections will be activated when output current (IO) exceeds its
specification as defined on Page 3 under “Protections”. In such
occurrence, the output voltage (VO) will start to droop and once the
power supply has reached its maximum power limit, the protection
is activated and the power supply will go into “Hiccup mode” (Auto-
Recovery). The power supply will recover once the fault condition
of the OLP and OCP is removed and IOis back within the
specifications.
It is not recommended to prolong the duration of IOwhen it is less
than OLP/OCP point, but greater than 100%, since it may cause
damage to the PSU.
Short Circuit Protection (Auto-Recovery)
The power supply’s output OLP/OCP function also provides
protection against short circuits. When a short circuit is applied, the
output current will operate in “Hiccup mode”, as shown in the
illustration in the OLP/OCP section on this page. The power supply
will return to normal operation after the short circuit is removed.
Overvoltage Protection (Auto-Recovery)
The power supply’s overvoltage circuit will be activated when its
internal feedback circuit fails. The output voltage shall not exceed
its specifications defined on Page 3 under “Protections”.
Over Temperature Protection (Auto-Recovery)
As described in load de-rating section, the power supply also has
Over Temperature Protection (OTP). In the event of a higher
operating temperature at 100% load, the power supply will run into
OTP when the operating temperature is beyond what is
recommended in the de-rating graph. When activated, the output
voltage will go into bouncing mode until the temperature drops to
its normal operating temperature as recommended in the de-rating
graph.

TECHNICAL DATASHEET
CliQ II DIN Rail Power Supply
48 V 60 W 1 Phase / DRP048V060W1B

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (September 2021, Rev. 06)
14
Operating Mode
Redundant Operation
In order to ensure proper redundant operation for the power
supply unit (PSU), the output voltage difference between the
two units must be kept at 0.90~1.00 V for 48 V supplies. Follow
simple steps given below to set them up for the redundant
operation:
Step 1.
Measure output voltage of PSU 1 and PSU 2. If PSU 1 is the
master unit, then VOof PSU 1 must be higher than PSU 2. In
order to set the output voltage, individually connect the power
supply to 50% of rated load at any line voltage, and set the
PSU 1 and PSU 2 output voltage.
Step 2.
Connect the power supply units PSU 1 and PSU 2 to Vin 1 &
Vin 2, respectively, of the DRR-20N (or 20 A) module shown on
the diagram on the right.
Step 3.
Connect the system load from Vout. Please note that output
voltage Vout from DRR module will be = VO(output voltage of
power supply) – Vdrop* (in DRR module).
*Vdrop will vary from 0.60 V to 0.90 V (Typical 0.65 V) depending on the load
current and surrounding air temperature
**The Signal GND in the DRR module is for the built-in LED and DC OK signals. The Output
GND terminals from the two PSU’s do not need to be connected to the Signal GND terminal.
Fig. 5 Redundant Operation Connection Diagram
Parallel Operation
The power supply units (PSUs) can also be used for parallel
operation in order to increase the output power. The difference
in output voltage between the two units must be kept to within
25 mV of each other. This difference must be verified with the
same output load connected independently to each unit.
Parameters such as EMI, inrush current, leakage current,
PARD, start up time will be different from those on the
datasheet, when two units are connected in parallel. The user
will need to verify that any differences will still allow the two
power supplies connected in parallel will work properly in their
product/application.
Fig. 6 Parallel Operation Connection Diagram

TECHNICAL DATASHEET
CliQ II DIN Rail Power Supply
48 V 60 W 1 Phase / DRP048V060W1B

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (September 2021, Rev. 06)
15
Fig. 7 Series Operation Connection Diagram
Series Operation
Delta's CliQ II can be connected in series to increase the output voltage as shown in figure above. Power supply from the same product
series only be used and with the same rated output current. The maximum load current should not exceed the smallest rated output
current. Any number of power supplies can be connected in series, user must note that output voltage > 60 Vdc will not meet SELV
requirements and could be hazardous to user the total voltage shall not exceed 150 Vdc. Installing a protection against the touching is
must and connect the output ground to earth when output voltage is not SELV.
A diode in reverse bias must be added across output terminals of each power supply, this is to prevent -V voltage being applied to other
power supply in fault conditions such as short circuit across load. During short circuit -V1& +V1will come across +V2& -V2which means
connecting 2 power supplies in opposite polarity and may cause damage to the power supply. With reverse bias diodes in place the
voltage across each power supply will be restricted to one diode drop – approximately 0.7 V to 1.0 V.
It is recommended to provide sufficient de-rating for diodes hence it is recommended to use 2 times the voltage rating of the output
voltage or equal to the rating of series output depending which is higher, e.g. 48V power supply can use 96 V rated diode which is equal
to two 48V power supplies connected in series OR a 48 V power supply adjusted to 56V output will see 56 V + 56 V = 112 V, in this case
reverse voltage rating of diode shall be > 112 V.
During the short circuit condition, the current through diodes will be large, hence it is recommended that diodes to be least twice the
current rating of the power supply.
The turn ON would be non-monotonic as the power supply
with the fastest startup time and rise time will turn on first.
As a result, the startup waveform with 2 power supplies
connected in series would see a step.
User must consider to verify parameters such as EMI, inrush
current, leakage current, PARD, startup time would differ
from datasheet numbers as multiple power supplies in series.

TECHNICAL DATASHEET
CliQ II DIN Rail Power Supply
48 V 60 W 1 Phase / DRP048V060W1B

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (September 2021, Rev. 06)
16
Fig. 8 DC Input Operation Connection Diagram
DC Input Operation
Step 1.
Use a battery or similar DC source.
Step 2.
Connect +pole to L and -pole to N.
Step 3.
Connect the PE terminal to an earth wire or to the machine ground.
Fig. 92 of 3 Phase System Input Operation Connection Diagram
2 of 3 Phase System Input Operation
Delta's CliQ II can use on 2 of 3 phase system. Please refer to the following step.
Step 1.
The input voltage applied from Line to Neutral is below the maximum rated input. The input voltage shall be below 240 Vac +10%.
Step 2.
The external protector is needed on N (Neutral) input line to secure a safety. N line does not have internal fuse protection. An appropriate
fuse or circuit breaker should be connected in series with N input line connection like the following.

TECHNICAL DATASHEET
CliQ II DIN Rail Power Supply
48 V 60 W 1 Phase / DRP048V060W1B

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (September 2021, Rev. 06)
17
Others
Conformal Coating
The Protective Coating Technology
Delta Electronics Group has designed the perfect dipping technique which penetrates everywhere including under
device, and prevents leakage. The conformal coating dipping can be applied to PCBAs or circuit board. The
coating preserves the performance of precision electronic primarily by preventing ionizable contaminants such as
salt from reaching circuit nodes, where the material slumps around sharp edges. This can be a problem especially
in highly conversing atmosphere.
PFC – Norm EN 61000-3-2
Line Current Harmonic content
Typically, the input current waveform is not sinusoidal due to the periodical peak charging of the input capacitor.
In industrial environment, complying with EN 61000-3-2 is only necessary under special conditions. Complying to
this standard can have some technical drawbacks, such as lower efficiency as well as some commercial aspects
such as higher purchasing costs. Frequently, the user does not profit from fulfilling this standard, therefore, it is
important to know whether it is mandatory to meet this standard for a specific application.
Attention
Delta provides all information in the datasheets on an “AS IS” basis and does not offer any kind of warranty through the information for
using the product. In the event of any discrepancy between the information in the catalog and datasheets, the datasheets shall prevail
(please refer to www.DeltaPSU.com for the latest datasheets information). Delta shall have no liability of indemnification for any claim
or action arising from any error for the provided information in the datasheets. Customer shall take its responsibility for evaluation of using
the product before placing an order with Delta.
Delta reserves the right to make changes to the information described in the datasheets without notice.
Manufacturer and Authorized Representatives Information
Manufacturer
Thailand
Delta Electronics (Thailand) PCL.
909 Pattana 1 Rd., Muang, Samutprakarn, 10280 Thailand
Taiwan
Delta Electronics, Inc.
3 Tungyuan Road, Chungli Industrial Zone, Taoyuan County
32063, Taiwan
Authorized Representatives
The Netherlands
Delta Greentech (Netherlands) B.V.
Zandsteen 15, 2132 MZ Hoofddorp, The Netherlands
United Kingdom
Delta Electronics Europe Limited
1 Redwood Court, Peel Park Campus,
East Kilbride, Glasgow, G74 5PF, United Kingdom