Allen-Bradley 1756-PSCA2 ControlLogix Redundant Power Chassis Adapter

Product Overview

The Allen-Bradley 1756-PSCA2 is a chassis adapter module. It works with redundant power supplies in ControlLogix systems. This module provides reliable power distribution to the backplane. It supports high-demand applications with multiple I/O modules. The 1756-PSCA2 ensures system uptime and stability. It is a key component for mission-critical processes. This adapter mounts on the left side of the chassis. It accepts three removable terminal blocks for easy wiring. The module operates in temperatures from 0 to 60 degrees Celsius. It dissipates up to 25.7 Watts of power. This unit is designed for harsh industrial environments. It carries an Ex nA IIC T4 Gc hazardous location certificate.

Application Scenarios

Use this module in redundant ControlLogix systems. It is ideal for oil and gas facilities. Chemical plants benefit from its hazardous location rating. Power generation stations require high availability. Water treatment plants use it for critical control loops. Manufacturing lines with high uptime needs also apply. The 1756-PSCA2 supports safety instrumented systems. It works well in remote terminal units. Any application needing dual power supplies fits this module. It is perfect for continuous process industries.

Technical Specifications

The 1756-PSCA2 weighs 8.1 ounces. Its dimensions are 5.51 x 4.41 x 5.71 inches. It draws 125 milliamps from the 24V backplane. It delivers 1.5 A at 1.2V DC. It provides 4 A at 3.3V DC. It supplies 15 A at 5.1V DC. It offers 2.8 A at 24V DC. Power dissipation is 25.7 Watts at 30 Celsius. Power dissipation is 21.3 Watts at 60 Celsius. It uses 1756-TBSH or 1756-TBNH terminal blocks. The module has no enclosure. It meets Ex nA IIC T4 Gc protection per EN 60079-15. It holds IECEx UL 14.0008XI certification.

Installation & Maintenance Guide

Mount the module on the left side of the chassis. Ensure the chassis power is off before installation. Insert the module firmly into the slot. Connect the three removable terminal blocks. Torque terminal screws to the specified value. Route power cables away from signal cables. Verify all connections are secure. Power on the system and check the module status. Regularly inspect terminal blocks for tightness. Keep the module free from dust and debris. Replace any damaged terminal blocks immediately. Follow all local electrical codes during installation.

Packing List

One Allen-Bradley 1756-PSCA2 module. Three removable terminal blocks. One product documentation sheet. No additional accessories are included. The module is packed in an anti-static bag. Shipping is via Fedex, UPS, or DHL.