Allen-Bradley 1756-PB72 Power Supply

Series#: AllenBradley

Product Details

【1756-PB72】Allen-Bradley ControlLogix Power Supply – Designed for 24V DC input, delivering reliable 10A backplane power to 1756 I/O and controller chassis.
High-Efficiency Power Conversion – Converts 24V DC to isolated 5V and 24V backplane voltages, minimizing heat dissipation in dense chassis configurations.
Hot-Swappable Design – Supports insertion and removal under power without interrupting adjacent modules, critical for mission-critical process control.
Integrated Diagnostics – Front-panel LED indicators for input power, backplane status, and fault alerts, enabling rapid troubleshooting.
Compact Form Factor – Single-slot width fits seamlessly into any ControlLogix chassis, simplifying system layout and expansion.
100% Original product. We provide efficient, traceable, and secure global shipping solutions.

Specification

The Allen-Bradley 1756-PB72 is a robust, field-proven power supply module specifically engineered for the ControlLogix platform, operating on a 24V DC input to deliver a steady 10A of backplane current. This unit is the backbone of medium-to-large automation systems, providing clean, isolated power to processors, communication modules, and I/O cards within the same chassis. Its rugged design ensures stable operation even in electrically noisy industrial environments, with built-in overcurrent and overvoltage protection to safeguard critical control hardware. The 1756-PB72 supports hot-swappable replacement, meaning it can be exchanged without powering down the entire rack—a vital feature for continuous process industries like oil & gas, water treatment, or manufacturing lines. Each unit is shipped as 100% Original and New, factory-tested, and ready for immediate deployment, with global logistics ensuring rapid delivery to your site.

Parameter	Specification
Product Type	ControlLogix Power Supply Module
Model Number	1756-PB72
Input Voltage	24V DC (nominal), range 18-32V DC
Input Current	5.0 A maximum at 24V DC
Backplane Output Current	10 A at 5V DC (isolated), 1.2 A at 24V DC (isolated)
Output Power	50 W typical
Chassis Compatibility	1756-A4, 1756-A7, 1756-A10, 1756-A13, 1756-A17, 1756-A20, 1756-A25 (ControlLogix standard chassis)
Slot Width	Single slot (1.2 inches / 30.5 mm)
Isolation	1500V DC input to backplane
Protection	Overcurrent, overvoltage, reverse polarity
LED Indicators	Input OK (green), Backplane OK (green), Fault (red)
Operating Temperature	0°C to 60°C (32°F to 140°F)
Storage Temperature	-40°C to 85°C (-40°F to 185°F)
Relative Humidity	5% to 95% non-condensing
Certifications	UL 508, CSA C22.2 No. 142, CE, ATEX (Zone 2), cULus
Weight	Approx. 0.45 kg (1.0 lb)
Shipping Weight	Approx. 0.55 kg (1.2 lb) with packaging
Warranty	Standard 1-year manufacturer warranty (extended available)