Redundancy Modules

24V / DRR-40A

Highlights & Features

  • RoHS Compliant
  • Relay alarm indirection
  • Built-in 2 channel DC OK signal
  • Caused by rugged handing
  • Conformal coating on PCBA to protect against chemical and dust pollutants
  • Class I, Div 2 Hazardous Locations (DRR-20A, DRR-40A)
  • Ease of wire connection to terminals
  • Wide Input & Output Range 22-60 Vdc
  • Full corrosion resistance aluminium chassis even with deep scratches

Dimensions (L x W x D) : 
121 x 50 x 122.1 mm
4.76" x 1.97" x 4.81"
Unit Weight : 
0.52 kg (1.15 lb)
Tags : DRR-40N
Nominal Output Voltage
Output Current
Voltage Drop Between Input and Output
Typical 0.65V
Nominal Input Voltage
24-48 Vdc
Input Voltage Range
22-60 Vdc
Input Current
(1+1 Redundancy) = Nom.2 x 25 Amps
(N+1 Redundancy) = Nom.2 x 20 Amps
(Single use) = Nom. 40 Amps
Efficiency at 100% load
> 97% typical.
121 x 50 x 122.1 mm
4.76" x 1.97" x 4.81"
Unit Weight
0.52 kg (1.15 lb)
Case Chassis / Cover
Cooling System
Operating Temperature
-40°C to +80°C
Storage Temperature
-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)
Shock Test (Non-Operating)
IEC 60068-2-27, 30G (300m/S²) for a duration of 18ms, 1 time per direction, 2 times in total
Vibration Test (Non-Operating)
IEC 60068-2-6, 10Hz to 500Hz @ 30m/S² (3G peak); 60 min per axis for all X, Y, Z direction
Operating Altitude
0 to 2,500 Meters (8,200 ft.)
Pollution Degree
Over Voltage Category
Overload / Overcurrent
< 50A, No Damage
Short Circuit
< 50A, No Damage
Degree of Protection
Protection Against Shock
Class III with Primary Earth connection
> 800,000 hrs. as per Telcordia SR-332
I/P: 24Vdc and 48Vdc, O/P: 100% load, Ta: 25°C
Expected Cap Life Time
10 years (Standby Mode @ 40°C)
Electrical Safety
SIQ Bauart: EN 60950-1
UL/cUL recognized: UL 60950-1 and CSA C22.2 No. 60950-1
CB scheme: IEC 60950-1
In conformance with EMC Directive 2014/30/EU and Low Voltage Directive 2014/35/EU
For DRR-20A and DRR-40A: In conformance with Equipment for explosive atmospheres (ATEX) directive 2014/34/EU
Galvanic Isolation
Input & Output / PE: 1.5KVac
Industrial Control Equipment
UL/cUL recognized: UL 508 and CSA C22.2 No. 107.1-01
Hazardous Location / ATEX
(For DRR-20A and DRR-40A)
cCSAus: CSA C22.2 No. 213-M1987, 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)]
II 3 G ATEX 2014/34/EU
(For DRR-20A and DRR-40A)
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
Electrical Equipment for Use in Electrical Power Installations
IEC/EN 62477-1 / IEC 62103
Material and Parts
RoHS Directive 2011/65/EU Compliant (EN 50581)
(CE & RE)
CISPR 32, EN 55032, EN 55011, FCC Title 47: Class B
EN 55024, EN 61000-6-2


Datasheet Uploaded on 25-Dec-2018 1.6 MB
.DXF Uploaded on 13-Jul-2015 104 KB
Manual Uploaded on 11-Apr-2018 1.2 MB
Mechanical Drawing Uploaded on 13-Jul-2015 40 KB
.STP Uploaded on 21-Jul-2015 1.4 MB
Image Uploaded on 03-Nov-2016 117 KB


ATEX Uploaded on 20-Nov-2017 1.0 MB
CB Uploaded on 26-Aug-2016 693 KB
CE Uploaded on 27-Mar-2017 47 KB
CSA Uploaded on 20-Nov-2017 168 KB
EAC Uploaded on 27-Mar-2019 1.1 MB
Hazloc Uploaded on 13-Jul-2015 153 KB
REACH Uploaded on 18-Dec-2018 545 KB
RoHS Uploaded on 18-Dec-2018 380 KB
SIQ Uploaded on 26-Aug-2016 681 KB
UL Uploaded on 13-Jul-2015 68 KB

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Output Voltage


Output Current


Input Voltage

0-0 Vac


121 x 50 x 122.1 mm
4.76" x 1.97" x 4.81"
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