1771-P4RK

The 1771-P4RK PLC 5 Conformal Coat Redundant Power Supply Module by Allen-Bradley is a module installed in a single slot of the 1771 I/O chassis which increases system availability by reducing machine downtime that may result in power interruption or failure and increases power reliability. The 1771-P4RK has a nominal input rating of 120V AC with an input range of 97-132V AC at 47-63 input frequency. The module prevents interruption of system operations by preventing power failure in the I/O chassis and it features N+1 Redundancy with a maximum system output current of 8A (2-unit system), 14A (3-unit system), and 20A (4-unit system). The 1771-P4RK is fused with a 250V AC, 1.5A slow blow fuse and it uses a 14 AWG wire size conductor. It comes with a 3-position and a 5-position terminal block and a redundant cable. The 1771-P4RK has a Relay Terminal Block and a circuit alarm with a rating of 24-250V AC 1A and 30W (max) power. It has an operational temperature range between 0 and 60 degrees Celsius (32 and 140 degrees Fahrenheit) at an ambient humidity range of 5-95% without condensation and a storage temperature of -40-85 degrees Celsius (-40-185 degrees Fahrenheit). The 1771-P4RK weighs 0.84Kg (2lb) and is built to meet UL, CSA safety Dielectric withstand, DOD (Electrostatic Discharge), NEMA (Noise susceptibility), and the Allen-Bradley Shock and Vibration Standards. It is conformally-coated to prevent damage and is designed with an open-enclosure.