TECHNICAL DATASHEET
CliQ II Redundancy Modules
20 A / DRR-20□, 40 A / DRR-40□
Highlights & Features
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Wide input and output range of 22-60 Vdc
Very wide operating temperature from -40°C to +80°C
Built-in 2 channel DC OK signal and alarm relay contact
Support N+1 Redundancy connection
Conformal coating on PCBAs to protect against common
dust and chemical pollutants
Hazardous Locations approval to ATEX and Class I, Div 2
(DRR-20A and DRR-40A)
IP20 Certified
Certified according to IEC/EN/UL 62368-1
Safety Standards
CB Certified for worldwide use
Model Number:
DRR-20☐, DRR-40☐
Unit Weight:
0.38 kg (0.84 lb), 0.52 kg (1.15 lb)
Dimensions (H x W x D): 121 x 50 x 122.1 mm
(4.76 x 1.97 x 4.81 inch)
General Description
Delta’s CliQ II redundancy modules offer a variable input and output voltage from 22 Vdc to 60 Vdc. The DRR-20☐ and DRR-40☐ can
operate over a wide temperature range of -40°C to -80°C. The state-of-the-art design is made to withstand harsh industrial environments.
The rugged, compact aluminium case is shock and vibration resistant according to IEC 60068-2 standard. Due to the wide input and
output voltage range from 22 Vdc to 60 Vdc, the redundancy modules are able to support power supply in parallel operation. These
modules also have an alarm relay contact as an indicator.
Model Information
CliQ II Redundancy Module
Model Number
Input Voltage Range
Rated Output Voltage
Rated Output Current
DRR-20☐
22-60 Vdc
Vin-0.65 V (typ.)
20.0 A
DRR-40☐
22-60 Vdc
Vin-0.65 V (typ.)
40.0 A
Model Numbering
DR
R–
XXA
□
DIN Rail
Redundancy Module
Output Current
20 - 20 A
40 - 40 A
A - Metal Case,
with Class I, Div
N - Metal Case,
without Class I, Div 2
1
All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
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TECHNICAL DATASHEET
CliQ II Redundancy Modules
20 A / DRR-20□, 40 A / DRR-40□
Specifications
Input Ratings / Characteristics
Nominal Input Voltage
24 Vdc and 48 Vdc
Input Voltage Range
22-60 Vdc
Input Current
DRR-20☐
20 A Max
(1+1 Redundancy) = Nominal 2 x 12.5 A
(N+1 Redundancy) = Nominal 2 x 10 A
(Single Use) = Nominal 20 A
DRR-40☐
40 A Max
(1+1 Redundancy) = Nominal 2 x 25 A
(N+1 Redundancy) = Nominal 2 x 20 A
(Single Use) = Nominal 40 A
Efficiency
> 97.0% typ.
Max Power Dissipation
Standby Mode
Operating
Mode
18 V ± 5% or < 30 V Max
48 V System:
Both Vin1 & Vin2 > 36 V ± 5% or < 60 V Max
*The LED will turn on when the Vin1 & Vin2 > 18 V ± 5% (for 24 V system) or > 36 V ± 5% (for 48 V system) and not more than 30 V (for 24 V system) or not more than 60 V
(for 48 V system). The relay contacts will be closed. If Vin1 & Vin2 are under or over this range, the LED will turn off.
Output Ratings / Characteristics
Nominal Output Voltage Range
Output Current
Vin-0.65 V (typ.)
DRR-20☐
20 A Max
DRR-40☐
40 A Max
Voltage Drop (Vin-Vout)
0.65 V typ.
Mechanical
Case Cover / Chassis
Aluminium
Dimensions (H x W x D)
121 x 50 x 122.1 mm (4.76 x 1.97 x 4.81 inch)
Unit Weight
LED Indicators
DRR-20☐
0.38 kg (0.84 lb)
DRR-40☐
0.52 kg (1.15 lb)
Green LED
Cooling System
Terminal
Wire
DC OK: Vin1 and Vin2
Convection
DRR-20☐
Input: 3 Pins (Rated 300 V / 30 A)
Output: 4 Pins (Rated 300 V / 30 A)
DRR-40☐
Input: 5 Pins (Rated 300 V / 30 A)
Output: 5 Pins (Rated 300 V / 30 A)
Input / Output
AWG 12-10
Mounting Rail
Standard TS35 DIN Rail in accordance with EN 60715
Noise (1 Meter from power supply)
Sound Pressure Level (SPL) < 40 dBA
2
All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
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TECHNICAL DATASHEET
CliQ II Redundancy Modules
20 A / DRR-20□, 40 A / DRR-40□
Environment
Surrounding Air Temperature
Power De-rating
Operating
-40°C to +80°C
Storage
-40°C to +85°C
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
Over Voltage Category
III
Pollution Degree
2
According to IEC/EN 62477-1 / EN 60204-1
(clearance and creepage distances) and
IEC 62103 (safety part)
Protections
Overload / Overcurrent*
Short Circuit
DRR-20☐
< 25 A, No Damage
DRR-40☐
< 50 A, No Damage
DRR-20☐
< 25 A, No Damage
DRR-40☐
< 50 A, No Damage
Degree of Protection
IP20
Protection Against Shock
Class III with PE** connection
*The overload condition must be controlled by the PSUs in parallel. The limit of input current should not be more than 25 A (for 20 A module) or not more than 50 A (for 40 A
module).
**PE: Primary Earth
Reliability Data
MTBF
3
> 800,000 hrs. as per Telcordia SR-332
I/P: 24 Vdc and 48 Vdc, O/P: 100% load, Ta: 25°C
All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (August 2022, Rev. 09.1)
TECHNICAL DATASHEET
CliQ II Redundancy Modules
20 A / DRR-20□, 40 A / DRR-40□
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
Electrical Safety
EN 62368-1
SIQ Bauart
UL/cUL recognized
CB scheme
UKCA
Industrial Control Equipment
Hazardous Location / ATEX
(For DRR-20A and DRR-40A)
UL/cUL recognized
IEC 60950-1, IEC 62368-1
BS EN 62368-1
UL 508 and CSA C22.2 No. 107.1-01 (File No. E315355)
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= -40°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= -40°C to +80°C (> +50°C derating)]
Certificate No. EPS 12 ATEX 1 491 X
K 60950-1 (DRR-40N only)
KC
CE
In conformance with EMC Directive 2014/30/EU and Low
Voltage Directive 2014/35/EU
UKCA
Galvanic Isolation
4
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)
Input & Output / PE
For DRR-20A and DRR-40A:
In conformance with Equipment for explosive atmospheres
(ATEX) directive 2014/34/EU
In conformance with Electrical Equipment (Safety) Regulations
2016 No. 1011 and
The Electromagnetic Compatibility Regulations 2016 No. 1091
1.5 KVac
All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (August 2022, Rev. 09.1)
TECHNICAL DATASHEET
CliQ II Redundancy Modules
20 A / DRR-20□, 40 A / DRR-40□
EMC
Emissions (CE & RE)
Generic Standards: CISPR 32, EN/BS EN 55032,
KN 32 (DRR-20N and DRR-40N only),
EN/BS EN 55011, FCC Title 47: Class B
Immunity
Generic Standards: EN/BS EN 55024, EN/BS EN 61000-6-2
KN 35 (DRR-20N and DRR-40N only)
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 Mode3): 1 kV
Conducted
IEC 61000-4-6
Level 3 Criteria A1)
150 kHz – 80 MHz, 10 Vrms
Power Frequency Magnetic Fields
IEC 61000-4-8
Criteria A1)
10 A/Meter
Voltage Dips and Interruptions
IEC 61000-4-11
Level 3 Criteria A 1)
Additional 100% dip; 1 cycle (20 ms); No Damage
Low Energy Pulse Test (Ring Wave)
IEC 61000-4-12
Level 3 Criteria A1)
Common Mode2): 2 kV
Differential Mode3): 1 kV
Note: Product intended to be used as Apparatus with AC-DC Power Supply, EMC compliance to be verified in correspondence to the connected units.
1) Criteria A: Normal performance within the specification limits
2) Asymmetrical: Common (Line to earth)
3) Symmetrical: Differential mode (Line to line)
5
All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
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TECHNICAL DATASHEET
CliQ II Redundancy Modules
20 A / DRR-20□, 40 A / DRR-40□
Block Diagram
DRR-20☐
DRR-40☐
6
All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (August 2022, Rev. 09.1)
TECHNICAL DATASHEET
CliQ II Redundancy Modules
20 A / DRR-20□, 40 A / DRR-40□
Device Description
DRR-20☐
DRR-40☐
1)
2)
3)
4)
5)
7
Input terminal block connector
Output terminal block connector
LED indicator of Vin1 & Vin2
Universal mounting rail system
Earth connection
All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (August 2022, Rev. 09.1)
TECHNICAL DATASHEET
CliQ II Redundancy Modules
20 A / DRR-20□, 40 A / DRR-40□
Dimensions
DRR-20☐
H x W x D: 121 x 50 x 122.1 mm (4.76 x 1.97 x 4.81 inch)
DRR-40☐
H x W x D: 121 x 50 x 122.1 mm (4.76 x 1.97 x 4.81 inch)
8
All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (August 2022, Rev. 09.1)
TECHNICAL DATASHEET
CliQ II Redundancy Modules
20 A / DRR-20□, 40 A / DRR-40□
Engineering Data
Output Load De-rating VS Surrounding Air Temperature
Note
1.
2.
3.
4.
5.
Fig. 1
De-rating for Vertical and Horizontal Mounting Orientation
> 50°C de-rate power by 2.5% / °C
The unit may degrade, or be damaged, when
it is continuously used outside the shaded
region, refer to the graph shown in Fig. 1.
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 have some
thermal stress problem and the ORing Diodes
may become too hot.
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.
Depending on the surrounding air temperature
and output load delivered by the power
supply, the device can be very hot!
If the device has to be mounted in any other
orientation, please contact info@deltapsu.com
for more details.
Assembly & Installation
The unit can be mounted on 35 mm (1.38 inch) DIN rails in accordance with EN 60715. The device should be installed with input terminal
block at the top.
Each device is delivered ready to install.
Mounting
Dismounting
Fig. 2.1 Mounting
Fig. 2.2 Dismounting
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.
To uninstall, pull or slide down the latch with screw driver as
shown in Fig. 2.2. Then slide the unit in the opposite direction,
release the latch and pull out the unit from the rail.
In accordance to 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.
9
All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
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TECHNICAL DATASHEET
CliQ II Redundancy Modules
20 A / DRR-20□, 40 A / DRR-40□
Safety Instructions
Horizontal Mounting
Vertical Mounting
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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: 50 mm (1.97 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!
The main power must be turned off before connecting or disconnecting wires to the terminals!
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 supply of the unit shall comply with any isolated secondary circuit according to UL 508, Clause 32.
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For DRR-20A and DRR-40A:
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The 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.
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Warning: Explosion Hazard - Substitution of components may impair suitability for Class I, Division 2.
•
Warning: Explosion Hazard - Do not disconnect equipment unless the power has been switched off or the area is known to be nonhazardous.
10
All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
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TECHNICAL DATASHEET
CliQ II Redundancy Modules
20 A / DRR-20□, 40 A / DRR-40□
Functions
Typical Application Notes
Fig. 3.1 1+1 Redundancy
Fig. 3.2 Single Use
Using 1 more PSU as the redundant unit.
Using more PSUs as the redundant units to increase the reliability.
Fig. 3.3 N+1 Redundancy
Connecting only one PSU to one DRR module to reduce the stress of the diodes and hence increase the reliability.
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All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
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TECHNICAL DATASHEET
CliQ II Redundancy Modules
20 A / DRR-20□, 40 A / DRR-40□
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 0.45~0.50 V for 24 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 VO of 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 right DRR module as per the system requirement
to the power supply units PSU 1 and PSU 2 at Vin 1 & Vin 2
respectively
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).
**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. 4
Redundant / Parallel Operation Connection Diagram
*Vdrop will vary from 0.60 V to 0.90 V (Typical 0.65 V) depending on the load
current and surrounding air temperature.
Parallel Operation
These DRR modules can also be used for Parallel function in order to increase the output power by N+1 (e.g. 2.5 A + 2.5 A = 5 A or
2.5 A + 2.5 A + 2.5 A = 7.5 A) or current sharing, and thus increasing the power supply and system reliability. A good current sharing
between two power supplies can be achieved by following simple steps as below (Refer to Fig. 4 for the Connection Diagram).
Step 1.
Set output load condition for both supplies at 50% and measure
the output voltages.
Step 2.
Adjust output voltages to the same level or within ±25 mV
difference.
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Step 3.
Connect PSU 1 and PSU 2 with the DRR module and measure
at Vin 1 & Vin 2 to verify the voltage difference. Ensure the
voltages are within ±25 mV.
Step 4.
Output voltage from DRR module Vout will be = VO (output voltage
of power supply) – Vdrop* (in DRR module).
All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
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TECHNICAL DATASHEET
CliQ II Redundancy Modules
20 A / DRR-20□, 40 A / DRR-40□
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.
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
13
United Kingdom
Delta Electronics Europe Limited
1 Redwood Court, Peel Park Campus,
East Kilbride, Glasgow, G74 5PF, United Kingdom
All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (August 2022, Rev. 09.1)