Allen-Bradley 1762-OB16 MicroLogix 16-Channel Output Module

3 min read wayne Science

Product Summary

The Allen-Bradley 1762-OB16 is a solid-state expansion I/O module for MicroLogix controllers. It delivers sixteen 24VDC sourcing outputs to control actuators. Engineers use this module to energize solenoids, pilot lamps, and relay coils reliably.

Product Procurement & Buyer Guide

This guide helps procurement managers and engineers select the right expansion module. We focus on compatibility, power requirements, and mounting specifics.

Controller Compatibility and Expansion Limits

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The 1762-OB16 works with three MicroLogix controller families. Users can install up to four modules on a MicroLogix 1100 system. A MicroLogix 1200 supports six modules, while a MicroLogix 1400 accepts seven. This scalability allows you to grow your I/O count without changing controllers.

Power Supply and Wiring Configuration

This output module uses a sourcing wiring configuration and requires 24VDC external power. The operating voltage range spans from 20.4 to 26.4VDC. The module draws a maximum bus current of 175 mA at 5V DC. You must respect the power supply distance rating of six modules. Do not place the module further than six slots from the power supply for stable operation.

Mechanical Mounting and Environmental Needs

Mount the 1762-OB16 on a DIN rail or panel. In high-vibration environments, always use a DIN rail end anchor. Mount the unit on a well-grounded surface for safety. Maintain 2 inches (50.8 mm) of clearance on all sides for proper ventilation. The module operates at a maximum altitude of 2000 meters with 5 to 95% non-condensing humidity.

1762-OB16 Industrial Automation Spare Parts

Output Current and Surge Handling

Each output point handles a continuous current of 0.5A at 55°C and 1.0A at 30°C. The total module current reaches 4.0A at 55°C and 8.0A at 30°C. The surge current rating is 2.0A for 10 ms. Switch repeatability is once every 2 seconds at 55°C and once per second at 30°C.

Signal Performance and Actuator Control

The module provides a fast signal delay of 0.1 ms when turning ON. The OFF delay measures 1.0 ms. This speed makes the module ideal for controlling discrete actuators like motor starters and buzzers. The solid-state design ensures reliable switching without mechanical wear.

1762-OB16 Industrial Automation Spare Parts

Installation Best Practices for Engineers

Always consult the controller manual for exact slot placement rules. Use shielded cables to reduce electrical noise in industrial environments. Verify the external 24VDC supply meets the 20.4 to 26.4VDC range before powering the module.

Logistics & Standard Packaging Details

  • One Allen-Bradley 1762-OB16 discrete output module
  • Installation guide with wiring diagrams
  • DIN rail mounting clip (end anchor not included for standard environments)
  • We offer express delivery shipping via FedEx, UPS, and DHL for this model.

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