Allen Bradley 1756-PB75R ControlLogix Rack Mount Redundant Power Supply

Product Introduction

The Allen Bradley 1756-PB75R is a rack-mount redundant DC power supply engineered for the ControlLogix platform. It is designed to provide stable, regulated backplane power in high-availability automation systems where continuous operation is critical.

This module operates within a 19–32 V DC input range and delivers a regulated 5 V DC output at up to 13 A to the ControlLogix chassis backplane. Its redundant architecture allows installation in paired configurations, ensuring that if one power supply experiences a failure, the secondary unit seamlessly maintains system operation. This design significantly reduces the risk of unexpected process interruptions.

The 1756-PB75R is particularly suited for mission-critical environments such as energy production, oil & gas processing, heavy manufacturing, and large distributed automation systems. Its rack-mount configuration ensures secure mechanical installation and reliable electrical connection within standard ControlLogix enclosures.

Product Specifications

Applications

• High-Availability PLC Systems used in continuous production lines where shutdowns are unacceptable.

• Process Control Installations including petrochemical plants, pharmaceutical manufacturing, and water treatment facilities.

• Power Generation and Distribution Systems requiring redundant controller power supply.

• Large Distributed I/O Networks operating across multiple ControlLogix racks.

• Critical Infrastructure Projects where system uptime directly impacts operational safety and productivity.

Advantages

• Redundant Architecture — Eliminates single power supply failure risks and enhances overall system reliability.

• Stable Backplane Regulation — Ensures consistent voltage delivery to controllers and I/O modules.

• Industrial-Grade Construction — Designed for demanding electrical cabinet environments.

• Seamless Integration — Fully compatible with ControlLogix redundant configurations.

• High Output Capacity — Provides sufficient current to support multiple installed modules within a chassis.

Related Models

Popular Models

Excellent PLC Co., Ltd. has a large number of brand new and original PLC and DCS spare parts, with more than 60 cooperative countries. All products are guaranteed for 1 year and delivered to you by high-quality express. We are committed to using the best products and the most favorable prices to meet the needs and friendship of our customers. We have won the trust of thousands of customers, including these excellent customers.

As for the delivery time, when we receive your order requirements, we will arrange for warehouse personnel to test and verify the products. After you place the order, we will send it to you within 24 hours.