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)