Allen-Bradley 1756-PB75R Redundant Power Supply 75W

Product Overview

The Allen-Bradley 1756-PB75R is a Redundant Power Supply module. It works with the 1756 ControlLogix PAC range. This unit lowers the risk of system downtime. It pairs with a partner to form a hot-standby assembly. One unit acts as the active source. The other unit stays on standby. It takes over automatically if an error occurs.

Application Scenarios

Use this power supply in critical industrial environments. It suits manufacturing plants and process control systems. It is ideal for applications that need high uptime. The module supports automatic chassis load sharing. It works with multiple compatible chassis. These include the 1756-A4, 1756-A7, 1756-A10, 1756-A13, and 1756-A17.

Technical Specifications

The 1756-PB75R operates at 18-32 Volts DC input. The nominal voltage is 24 Volts DC. It has a maximum input power of 110 Watts. The output power is 75 Watts at 0-60 degrees Celsius. It delivers 1.5 Amperes at 1.2 Volts. It provides 4 Amperes at 3.3 Volts. It also supplies 13 Amperes at 5.1 Volts. The current at 24 Volts is 2.8 Amperes. The inrush current is 30 Amperes maximum. The hold-up time is 20 milliseconds. The module weighs 0.95 kg. Its dimensions are 140 x 112 x 145 mm.

Installation & Maintenance Guide

Mount the module in a panel location. Use the 1756-CPR2 cable to connect it to the 1756-PSCA2 chassis adapter. Do not connect or disconnect the cable with power on. An electrical arc may occur in hazardous locations. Always turn off power before servicing. You can replace one unit while the system runs in nonredundant mode. The voltage input connections are auto-sensing.

Packing List

Each shipment includes one Allen-Bradley 1756-PB75R power supply. We ship via FedEx, UPS, or DHL. The package ensures safe delivery.