Allen Bradley 1771-P6S1 PLC-5 8A Power Supply Module

Product Overview

The Allen-Bradley 1771-P6S1 is a 120/220 V AC input power supply for the PLC-5 1771 I/O chassis. It delivers 8 A at 5 V DC to the chassis backplane from a single-slot footprint, powering the processor, I/O modules, and adapters.

Technical Specs

• Input voltage: 120/220 V AC, 47-63 Hz
• Output: 8 A @ +5 V DC
• Fuse: 1.5 A, 250 V slow-blow
• Module location: 1 chassis slot
• Weight: 0.9 kg (2 lb)
• Keying: Right-hand slot between positions 12-14 and 20-22

Key Features

• Single-slot design preserves I/O slots in the chassis
• Universal 120/220 V AC input for global deployment
• 8 A backplane capacity supports fully loaded 16-slot chassis
• Direct chassis mounting with keyed insertion

FAQ

• What is the difference between P6S1 and P6S? The P6S1 is the single-slot version; the P6S occupies two slots with a larger form factor.
• Which processors is it compatible with? It powers all PLC-5 processors including 1785-L40E, L60B, L80B, and L80E.
• Can two supplies be paralleled? Yes, using the 1771-CT paralleling cable.

Installation Guide

1. Verify chassis power is off.
2. Insert the supply into the leftmost power supply slot, observing the keying bands.
3. Connect AC input power to the supply terminals.
4. Install the chassis configuration plug for the supply type.
5. Apply power and confirm the status indicator is lit.

Selection Tips

• Choose P6S1 for standard 8 A requirements in a single slot; select P6S for two-slot 16 A applications.
• For 24 V DC input applications, use the 1771-P5E instead.
• Calculate total backplane load of all modules before selecting a supply.