Allen‑Bradley 1756-PA75 ControlLogix AC Power Supply

Product Description

The 1756-PA75 is an AC input power supply for Rockwell Allen‑Bradley ControlLogix 1756 chassis. It converts AC mains to multiple DC voltages and supplies power to the backplane for CPU, I/O, communication and other modules. It is a high-capacity standard power supply widely used in ControlLogix PLC automation cabinets.

Features

• Part Number: 1756-PA75, Brand: Allen‑Bradley (Rockwell Automation)
• Series: ControlLogix 1756 chassis power supply
• Input: 85–265 VAC, 47–63 Hz
• Output: 13 A @ 5 VDC backplane power, plus 3.3V, 1.2V and 24V auxiliary power
• Installation: Slot-mounted inside 1756 chassis, no separate external wiring for backplane
• Status indicators: Power OK, fault LED for quick diagnostics
• Certifications: CE, UL, CSA, CCC, industrial standard compliance
• Manufacturer Status: Active, available as original new, surplus stock or refurbished
• Typical gross weight: approx 1.2 kg, origin: United States
• Redundant option: Matching redundant model 1756-PA75R for hot backup

Applications

• ControlLogix PLC rack power supply for factory automation
• Packaging, material handling, water treatment, HVAC control systems
• Oil & gas, mining, power plant and process control DCS/PLC cabinets
• Assembly line, robot cell, conveyor and machine control spare replacement
• System upgrade, redundant power configuration and spare inventory

FAQ

Q: What is the difference between 1756-PA75 and 1756-PA72?
A: 1756-PA75 has higher 5V output current (13A) than PA72, supporting larger I/O quantity in the chassis.

Q: Can it work with ControlLogix-XT extreme temperature modules?
A: No, use 1756-PAXT series for XT high/low temperature rated chassis.

Q: Does it support hot-swap replacement?
A: It can be hot-swapped only when paired with redundant power configuration (1756-PA75R + PSCA2 adapter).