Allen-Bradley 1771-P4S Power Supply Module PLC

The Allen-Bradley 1771-P4S Power Supply Module is a 1-slot PLC-5 backplane power supply that delivers 5 V DC to the rack’s backplane to power PLC-5 I/O modules. It accepts 120 VAC input (nominal 97–132 VAC, 47–63 Hz) and draws up to about 1.5 A, protected by a 1.5 A, 250 V slow-blow fuse. The module provides up to 8 A of 5 V DC on the backplane to feed attached I/O modules. For installation, 120 VAC is connected through the included Wago 231-205/000-008 connector. Operational temperature range is 0 to 60°C (32 to 140°F) with storage tolerances -40 to 85°C (-40 to 185°F) and 5–95% RH non-condensing. As a PLC-5 power supply, it is designed to occupy a single rack slot and is used to power PLC-5 I/O modules in industrial control panels and legacy automation systems.