Allen-Bradley 1771-P7 | PLC5 Power Supply Module

Overview

The 1771-P7 is a stand-alone PLC5 power supply from Allen-Bradley, providing reliable power for single I/O chassis installations.

It powers one 1771-A1B, -A2B, -A3B, -A3B1, or -A4B I/O chassis with adapter modules. This supply also supports Mini-PLC-2/02, Mini-PLC-2/05, Mini-PLC-2/16, Mini-PLC-2/17, or PLC-5 programmable controllers.

The 1771-P7 features a robust design to ensure stable output and safe operation in industrial environments. Never attempt parallel connection, as this may cause controller faults or safety risks.

Its compact, lightweight design allows flexible mounting in stand-alone configurations, while providing essential protection for your PLC system.

Technical Specifications

Features

• Delivers stable power to a single I/O chassis or compatible PLC system.

• Supports multiple PLC-5 or Mini-PLC-2 programmable controllers for flexible deployment.

• Backplane output current up to 16 A ensures reliable operation of all connected modules.

• Compact, lightweight design simplifies installation in stand-alone setups.

• Fuse protection prevents overloads and ensures system safety.

Installation Notes

• Mount the 1771-P7 in a compatible I/O chassis or dedicated enclosure.

• Connect input AC voltage according to the specified range.

• Ensure proper cabling with 1771-CP1, CP2, or CP3 adapters.

• Never connect in parallel with another power supply, which may cause data loss or unsafe operation.

• Verify fuse and transformer ratings before powering the module.

FAQ

Q1: Is the 1771-P7 factory new and original?
A1: Yes, it is fully original, brand new, and ready for immediate shipment.

Q2: Can this power supply be used in parallel?
A2: No, the 1771-P7 is stand-alone only and must not be paralleled.

Q3: What I/O chassis does it support?
A3: Supports one 1771-A1B, -A2B, -A3B, -A3B1, or -A4B chassis.

Q4: What input voltage does it accept?
A4: Accepts 97–132 V AC or 195–264 V AC input with 47–63 Hz frequency.

Q5: What is the maximum backplane current?
A5: Provides up to 16 A at 5 V DC to the connected I/O modules.