Allen-Bradley 1771-PS7 PLC Rack Power Supply Module

Product Description

The Allen-Bradley 1771-PS7 Power Supply Module was designed for use with the 1771 I/O chassis in PLC systems. Delivering 2.4 amps of regulated power, it supported both 120 VAC and 220 VAC inputs at 50/60 Hz. This unit provided stable power distribution for rack-mounted modules, ensuring reliable operation in machine control and process automation environments. Although discontinued in 2016, it remains relevant for legacy systems requiring replacement or maintenance.

Key Features

• Manufacturer: Rockwell Automation

• Brand: Allen-Bradley

• Model Number: 1771-PS7

• Type: PLC Rack Power Supply Module

• Input Voltage: 120/220 VAC, 50/60 Hz

• Output Current: 2.4 A

• Category: PLCs / Machine Control, PLC Module / Rack

• Weight: 6 lbs (≈ 2.72 kg)

• Status: Discontinued by manufacturer in 2016

Application Scenarios

• Legacy PLC Systems: Provides regulated power for Allen-Bradley 1771 I/O racks

• Industrial Automation: Suitable for machine control and process control environments

• System Maintenance: Used as a replacement in discontinued 1771-series installations

FAQ

Q: Is the 1771-PS7 still in production?  A: No, it was discontinued by Rockwell Automation in 2016.

Q: What is the output current capacity?  A: The module delivers 2.4 amps.

Q: What input voltages are supported?  A: 120 VAC or 220 VAC at 50/60 Hz.

Q: How does it compare to the 1771-PS6 power supply?  A: The 1771-PS7 offers higher current capacity (2.4 A), while the 1771-PS6 is rated for lower output and suited to smaller rack configurations.