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Power Supply Redundancy Buffer Module

Item# DR-120-24V

Power Supply Redundancy Buffer Module Power Supply Redundancy Buffer Module
The PS-RDN20 is a 20A redundancy (buffering) module for a 24 Vdc power system. Containing 2 sets of 20A OR-ing diodes, the PS-RDN20 gives you a new option for safe connection of 1+1 redundant power supplies. Not only does it provide the buffering and decoupling for redundant power supplies, the PS-RDN20 also provides alarm signals for both input channels through the built-in alarm relays. Now you can replace a failed power supply without interruption to your control system.
DR-120-24V
  • Suitable for Redundant Operation of 24 Vdc Systems
  • Alarm Output Relays
  • LED Indicator for Input Failure Alarm
  • DIN Rail Mount
  • CE Rated
  • 3-Year Warranty
Current Rating
Supply Voltage
 This item is available for quick shipping
Quantity Price each
1-4 $143.00
5-9 $140.14
10-24 $137.28
25-49 $131.56
50-99 $130.13
100+ $128.70

In stock

Lead Time ( If not in Stock): 4 weeks

Product Specs

  • Form Factor DIN rail
  • Isolation Resistance >100M Ω/500 Vdc
  • Maximum Input Current 20A per input
  • Maximum Input Voltage 21 to 28 Vdc
  • Maximum Output Current 20A
  • Maximum Operating Temperature 70 {C} (158 {F})
  • Maximum Storage Temperature 85 {C} (185 {F})
  • Minimum Coil Drop Out Voltage 0.5V INPUT
  • Minimum Input Voltage 21 Vdc
  • Minimum Operating Temperature -20 {C} (-4{F})
  • Minimum Storage Temperature -40 {C} (-40 {F})
  • Withstand Voltage 0.5 K Vac

The PS-RDN20 is a 20A redundancy (buffering) module for a 24 Vdc power system. Containing 2 sets of 20A OR-ing diodes, the PS-RDN20 gives you a new option for safe connection of 1+1 redundant power supplies. Not only does it provide the buffering and decoupling for redundant power supplies, the PS-RDN20 also provides alarm signals for both input channels through the built-in alarm relays. Now you can replace a failed power supply without interruption to your control system.

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