Allen-Bradley 1762-OW8 MicroLogix Relay Output Module

Product Overview

The Allen-Bradley 1762-OW8 is a solid-state relay output module designed for use with MicroLogix 1100, 1200, and 1400 programmable logic controllers. It belongs to the Bulletin 1762 expansion I/O series. This module increases the output capacity of the control system by providing eight (8) normally open relay contacts. The 1762-OW8 supports AC/DC loads with voltage ratings from 5 to 265 VAC and 5 to 125 VDC. Each output channel can handle up to 2.5 A continuous current. The module features two isolated groups: outputs 0-3 and outputs 4-7. This design allows flexible wiring and minimizes interference. The maximum bus current draw is 80 mA at 5 VDC and 90 mA at 24 VDC. Heat dissipation is 2.9 W total. The module must be installed at least six modules away from the controller power supply. The 1762-OW8 uses a rackless modular design for easy installation and reduced inventory cost. It can be mounted on a DIN rail or panel. This module is ideal for expanding I/O points in existing MicroLogix systems.

Application Scenarios

Utilize the 1762-OW8 to energize magnetic contactors, relay coils, solenoid valves, and other discrete loads. It can also send start and run commands to variable frequency drives (VFDs) and motor starters. Common applications include pilot lamps, indicators, alarm panels, sirens, buzzers, and horns. The module operates reliably in clean, dry industrial environments classified as Pollution Degree 2. The relay outputs provide isolation between the controller and field devices.

Technical Specifications

• Manufacturer: Rockwell Automation
• Brand: Allen-Bradley
• Series: MicroLogix
• Product Type: Relay Output Module
• Catalog Number: 1762-OW8
• Outputs: 8 relay (normally open)
• Voltage Range: 5-265 VAC; 5-125 VDC
• Current per Point: 2.5 A
• Current per Common: 8 A
• Current per Module: 16 A
• Signal Delay: 10 ms (on/off)
• Heat Dissipation: 2.9 W total
• Bus Current Draw: 80 mA at 5 VDC; 90 mA at 24 VDC
• Mounting: DIN rail (EN 50022 35x7.5 or 35x15 mm) or panel
• Weight: 228 g (0.50 lbs)
• Compatible Controllers: MicroLogix 1100, 1200, 1400
• Power Supply Distance: 6 modules away
• Output Groups: 2 groups of 4 (channels 0-3, 4-7)

Installation & Maintenance Guide

Mount the 1762-OW8 on a DIN rail (35x7.5 or 35x15 mm) or panel. Use DIN rail end anchors in high vibration environments. For higher vibration, panel mount is recommended. Avoid debris falling into the module. Connect the ribbon cable to the adjacent expansion module or base controller. Ensure the module is configured in the hardware configuration. Operate in Pollution Degree 2 environments only. Replace defective modules promptly to maintain system integrity. Signal delay is 10 ms for both on-to-off and off-to-on transitions.

Packing List

• 1 x Allen-Bradley 1762-OW8 Relay Output Module
• 1 x Ribbon Cable (pre-attached)
• 1 x Installation Manual

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