
Allen-Bradley 1762-OW16 MicroLogix 16-Point Relay Output Module
Product Summary
The 1762-OW16 from Allen-Bradley expands your MicroLogix system capability. This module provides sixteen isolated relay outputs for switching AC and DC loads. It works with 1100, 1200, and 1400 controllers. This module delivers reliable industrial control.
Theme A: Product Procurement & Buyer Guide
Procurement teams must verify the 1762-OW16 module's technical fit for their application. This device directly enhances output capacity for MicroLogix PLC systems. It offers sixteen normally open relay contacts. Engineers use it to switch loads up to 2.5 Amps per point.
The module operates across a wide voltage range for maximum flexibility. It handles 5-265 VAC and 5-125 VDC circuits. This dual rating simplifies inventory management for facilities using mixed power systems. You can order one part for both AC and DC control needs.

Consider the module's grouping structure for isolation requirements. The unit contains two isolated groups of eight channels each. Group 0 covers outputs 0 through 7. This design allows different voltage potentials within one hardware unit.
Check controller compatibility before purchasing. The module supports up to four units with a MicroLogix 1100. You can install six modules with a MicroLogix 1200 controller. Larger systems benefit from using seven modules on a MicroLogix 1500 base.
The module draws only 140 mA from the 5V DC bus supply. It also consumes 180 mA from the 24V DC bus. These low power requirements ensure efficient system operation. Heat dissipation remains low at just 6.1 Watts.
Theme B: Step-by-Step Installation Guide

Start the installation by mounting the module to a DIN rail. The unit dimensions are 90 x 40.4 x 87 mm. Ensure you have adequate clearance for wiring and airflow. The IP20 enclosure protects against solid objects only.
Connect the module to the correct MicroLogix controller base. Slide the unit onto the DIN rail until it locks firmly. Use the mounting tabs for secure panel mounting. The total height with tabs is 110 mm.
Wire the field devices to the terminal block carefully. Each output point handles a maximum continuous current of 2.5 Amps. The total current per common is 8 Amps maximum. Respect the module limit of 16 Amps total current.
Install a surge suppressor across any inductive loads you control. This practice extends the life of the relay contacts significantly. Inductive loads generate high inrush currents without suppression. Follow the wiring guidelines from the manufacturer for best results.

Verify the signal delay time for your application requirements. The module has a maximum signal delay of 10 ms for any state change. This timing applies to both ON to OFF and OFF to ON transitions.