1756-OB8I Allen-Bradley ControlLogix Isolated DC Output Module

Product Overview

The Allen-Bradley 1756-OB8I is a high-quality isolated DC output module. It belongs to the ControlLogix series. This module provides 8 individually isolated outputs. It operates on 12-24 Volts DC. It is designed for reliable industrial control.

This module ensures signal integrity in noisy environments. It uses individual isolation for each channel. It offers a wide operating voltage range. It draws only 165 milliamps at 5.1 Volts. Power dissipation reaches a maximum of 4.6 Watts.

Application Scenarios

This module is ideal for discrete manufacturing. It works well in process control systems. It is suitable for machine builder applications. Use it to control solenoids and valves. It also drives indicator lights and relays.

The 1756-OB8I excels in high-noise environments. It provides clean signal switching. It is perfect for remote I/O applications. It integrates seamlessly into ControlLogix racks. It helps reduce wiring complexity.

Technical Specifications

This module has 8 isolated outputs. The voltage range is 10-30 Volts DC. It consumes 165 milliamps at 5.1 Volts. It consumes 2 milliamps at 24 Volts. Maximum power dissipation is 4.6 Watts.

Thermal dissipation is 15.7 BTU per hour. Backplane power usage is 0.89 Watts. Isolation voltage is 50 Volts continuous. The module uses removable terminal blocks. It supports 1756-TBCH and 1756-TBS6H blocks.

Installation & Maintenance Guide

Install the module into a ControlLogix chassis. Secure it with the locking screw. Connect wiring to the terminal block. Use proper wire gauges for current. Follow standard safety procedures.

Check connections regularly for tightness. Keep the module free of dust. Ensure proper ventilation around the unit. Do not exceed voltage ratings. Replace the module if it fails.

Packing List

The package includes one 1756-OB8I module. It includes one removable terminal block. It also includes a user manual. The product is shipped in an anti-static bag. We ship via Fedex, UPS, or DHL.