Allen-Bradley 1756-PA72 ControlLogix AC Power Supply

Availability: 5 left in stock

The Allen-Bradley 1756-PA72 is a standard AC power supply module designed for the ControlLogix 1756 chassis system. It provides regulated...

SKU: 1756-PA72

Manufacturer: Allen-Bradley
Product No.: 1756-PA72
Product Type: PLC Power Supply
Product Origin: USA
Payment:T/T, Western Union
Weight: 1140g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

The Allen-Bradley 1756-PA72 is a standard AC power supply module designed for the ControlLogix 1756 chassis system. It provides regulated backplane power to support CPU modules, communication modules, and I/O modules installed in the chassis. The unit accepts a wide AC input range and converts it into multiple DC backplane voltages required by ControlLogix components.

Features

Designed for ControlLogix 1756 chassis systems
Universal AC input range: 85-265V AC
Provides 75W of total output power at 60 degC
Supports multiple backplane voltage rails: 5.1V DC, 3.3V DC, 24V DC, and 1.2V DC
Built-in diagnostic indicators for system monitoring
Integrated protection against electrical noise and voltage fluctuations

Applications

Assembly and bottling lines
CNC and precision metalworking machines
Material handling systems, including conveyors and robotic palletizers
Process skids for chemical, water, and oil/gas industries
Automotive robotics and welding cells

Technical Specifications

Model	1756-PA72
Input Voltage Range	85-265V AC
Nominal Input Voltage	120/240V AC
Input Frequency	47-63 Hz
Max Input Power	100 W
Output Power	75 W at 60 degC
Output Current (3.3V DC)	4 A
Output Current (5.1V DC)	10 A
Output Current (24V DC)	2.8 A
Operating Temperature	0 to 60 degC
Isolation Voltage	250V Continuous

Installation Guidelines

Ensure the ControlLogix chassis is properly mounted and grounded according to Rockwell Automation guidelines.
The power supply must be installed in the dedicated leftmost slot of the chassis.
Align the module's circuit board with the chassis card guides.
Slide the module until it is flush with the chassis and the backplane connector is fully seated.
Secure the module by tightening the top and bottom Phillips head screws to a torque of 0.8 N-m (7 lb-in).
Keep the protective label on the top vents during panel fabrication to prevent metal shavings from entering the unit.

FAQ

What is the input voltage range of the 1756-PA72?

The module supports a universal input range of 85-265V AC (nominal 120/240V AC) at 47-63 Hz.

Where should it be installed in the chassis?

The module must be installed in the leftmost slot of the ControlLogix chassis. This slot is dedicated to the power supply and does not occupy a standard I/O slot.

What is the maximum power output?

The total output power is 75 W at 0–60 degC. Ensure the combined power consumption of all modules in the chassis does not exceed the power supply's rated capacity.

What's clients say about us

Excellent Emergency Support!

Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

Mark Thompson

Maintenance Manager, USA

Reliable Source for New Spares

Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

Robert Hoffmann

Engineering Lead, Germany

Top-tier Service and Quality

We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.