Allen-Bradley 1771-P5EK Power Supply Module

Feature & Principle

It is a chassis power supply module for Rockwell 1771 universal I/O rack. It takes 24VDC as input and converts to stable 5VDC power to supply the backplane for all I/O modules inside the rack. It occupies two slots of the 1771 chassis, supports parallel connection of multiple power supplies to expand load capacity. Built-in overcurrent and short-circuit protection, power status LED indication. This model has been discontinued, mainly used for maintenance replacement of old 1771 PLC control systems.

Specifications

Model: 1771-P5EK Brand: Allen-Bradley (Rockwell Automation) Input: 20.5 ~ 30 VDC (nominal 24VDC) Output: 5VDC, max 8A Power rating: 57W Chassis: 1771 universal I/O chassis Slot occupation: 2 slots Protection: Overcurrent, short circuit protection Status indicator: Power OK LED Application: Petrochemical, water treatment, production line old 1771 PLC cabinet Certification: CE, UL

Components & Diagnostics

Power conversion PCB, input fuse, isolation circuit, backplane connector, status LED. Common faults: fuse blown, no 5V backplane output, overheat alarm, power unstable, backplane short circuit trigger shutdown.

Product Brief

1771-P5EK power supply module, Allen-Bradley 1771 rack 24VDC input power spare widely used for legacy PLC cabinet overhaul and replacement.