Allen Bradley 1756-PB75R ControlLogix Rack-Mount Redundant Power Supply

Overview

The Allen Bradley 1756-PB75R is a rack-mount redundant DC power supply module designed for ControlLogix systems. It provides reliable power delivery with redundancy support, ensuring high system availability and uninterrupted operation in critical industrial automation environments.

General Information

Part Number: 1756-PB75R

Manufacturer: Allen Bradley

Brand / Country of Origin: Allen Bradley / United States

Series: ControlLogix

Type: DC Redundant Power Supply Module

Mounting: Rack or chassis-mounted installation

Application: Redundant power supply for ControlLogix automation systems

Technology: Industrial DC switched-mode power supply with redundancy and diagnostic monitoring

Power Specifications

Input Voltage: 18–32 V DC

Input Current: Dependent on system load

Output Power: Up to 75 W

Redundancy Support: Dual power supply redundancy configuration

Power Distribution: Supplies regulated DC power to ControlLogix backplane

Protection Features: Overvoltage, overload, short-circuit, and thermal protection

Status Indicators: LED indicators for power, redundancy, and fault status

Communication & Interface

Interface Type: Direct backplane connection

System Compatibility: ControlLogix redundant power architectures

Diagnostics: Continuous monitoring of power and redundancy status

User Interface: Front-panel LED indicators

Configuration Requirements: No external configuration required

Environmental

Operating Temperature: 0 to +60 °C

Storage Temperature: −40 to +85 °C

Relative Humidity: 5–95% RH, non-condensing

Vibration Resistance: Designed for industrial environments

Protection Rating: IP20 when installed within an enclosure

Dimensions & Weight

Dimensions (L × W × H): 175 × 145 × 137 mm

Weight: 1.45 kg

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