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Power Supply Redundancy Buffer Module

$145.01

Item# DR-120-24V

 This item is available for quick shipping
Volume discounts available
Volume Discount Schedule
Quantity Price each
1-4 $145.01
5-9 $142.11
10-24 $139.21
25-49 $133.41
50-99 $131.96
100+ $130.51

In stock

Lead Time ( If not in Stock): 4 weeks

Power Supply Redundancy Buffer Module DR-120-24V DR-120-24V
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  • 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

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Supply Voltage

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.

SPECIFICATIONS
OUTPUT
Reverse Voltage (Max): 30V
Output Current (Max): 20A
Voltage Drop: 0.5V INPUT
Input Voltage Range: 21 to 28 Vdc
Number of Inputs: Two
Input Current (Max): 20A per input FUNCTION
Input Voltage Alarm: When input is <20V (±5%) or >30V (±5%), relay contacts close
Relay Contact Rating (Max): 30 Vdc, 1A ENVIRONMENT
Working Temperature: -20 to 70°C (-4 to 158ºF)
Working Humidity: 20 to 90% RH non-condensing
Storage Temperature, Humidity: -40 to 85°C (-40 to 185ºF), 10 to 95% RH
Vibration: 10 to 500 Hz, 2G 10 min/ 1 cycle, period for 60 min each along X, Y, Z axes
Mounting: Compliance to IEC60068-2-6
SAFETY and EMC

Withstand Voltage:
Terminal-Chassis: 0.5 K Vac,
Relay Contacts-Terminal: 0.5 K Vac
Isolation Resistance:
Terminal-Chassis: >100M O/500 Vdc 25°C (77ºF) 70% RH
EMI Conduction and Radiation: Compliance to EN55022 (CISPR22) Class B
EMS Immunity: Compliance to EN61000-4-2, 3, 4, 5, 6, 8, ENV50204, heavy industry level, Criteria A
MTBF: 996.8 Khrs min MIL-HDBK-217F [25ºC (77ºF)]
Dimensions: 55.5 W x 125.2 H x 100 mm D (2.18 x 4.93 x 3.94")
Weight: 0.5 kg (1.1 lb)

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