Allen-Bradley 1756-PA72 ControlLogix Power Supply 85-265VAC

Product Overview

The Allen-Bradley 1756-PA72 is a standard power supply for ControlLogix systems. It mounts on the left side of a 1756 chassis. This unit provides stable DC power to the backplane. It accepts a wide input voltage range from 85 to 265 VAC. The power supply delivers 5.1 VDC at 10 Amps. It also provides 3.3 VDC at 4 Amps and 24 VDC at 2.8 Amps. The maximum output power is 75 Watts at 60 degrees Celsius. This module is essential for powering all modules in the chassis.

Application Scenarios

This power supply works with many ControlLogix chassis models. It supports 1756-A4, 1756-A7, and 1756-A10 chassis. It also works with 1756-A13 and 1756-A17 chassis. The unit fits Series A, B, and C chassis versions. It is used in factory automation and process control. It is ideal for discrete manufacturing and batch processing. The power supply supports high-availability systems. It ensures continuous operation for critical control tasks.

Technical Specifications

The input voltage range is 85 to 265 VAC. The nominal input is 120 or 240 VAC. The input frequency is 47 to 63 Hz. The maximum input power is 100 VA or 100 Watts. The output power is 75 Watts at 0 to 60 degrees Celsius. The power dissipation is 25 Watts. The hold-up time varies by input voltage. It is 5 cycles at 85 VAC and 6 cycles at 120 VAC. It is also 6 cycles at 200 VAC and 240 VAC. The maximum inrush current is 20 Amps. The isolation voltage is 250 Volts continuous. The unit weighs 0.95 kg. Its dimensions are 14.0 x 11.2 x 14.5 cm.

Installation & Maintenance Guide

Install the power supply on the left end of the chassis. It plugs directly into the backplane. The unit does not occupy a module slot. Always disconnect power before installation. Ensure the chassis is properly grounded. Use the correct input voltage for your region. The enclosure is open type. Install the chassis inside a protective cabinet. This guards against dust and contaminants. Regularly check for loose connections. Keep the area free of debris. Do not block the ventilation slots.

Packing List

One 1756-PA72 power supply unit is included. No additional cables or brackets are provided. The unit comes in its original packaging. The package also includes a quick start guide. All items are securely packed for shipping. We ship via FedEx, UPS, or DHL. Contact us for expedited shipping options.