Allen-Bradley 1762-OW8 MicroLogix Output Module | 8-Channel Relay, 5-250V AC/DC, 2A, IP20 Specs

Allen-Bradley 1762-OW8 MicroLogix Output Module | 8-Channel Relay, 5-250V AC/DC, 2A, IP20 Specs

Allen-Bradley 1762-OW8 MicroLogix relay output module specifications. 8-channel relay output, 5-250V AC/DC, 2A per channel, IP20. For industrial control applications.

Product Overview

The Allen-Bradley 1762-OW8​ is an 8-channel relay output expansion module​ from the MicroLogix series, designed for industrial control applications. This module provides 8 Form A (SPST-NO) relay outputs​ capable of switching 5-250V AC or DC loads at 2A per channel, and connects directly to MicroLogix 1100, 1200, and 1400 controllers. The "1762" designation indicates the MicroLogix expansion I/O series, "OW8" specifies the 8-channel relay output configuration. This compact module enables flexible control of various AC/DC loads such as contactors, solenoids, motors, and indicators in small to medium automation applications.

Technical Specifications

Note: Specifications are based on Allen-Bradley 1762 series technical documentation. The "1762-OW8" model specifically indicates 8-channel relay output configuration. Actual specifications may vary slightly depending on production batch.

Model Number Decoding (1762-OW8)

• 1762:​ Series designation (MicroLogix expansion I/O series)

• OW8:​ Module type (OW = relay output, 8 = 8 channels)

Note:​ The "OW" prefix indicates relay output functionality. The "8" suffix specifies 8 output channels. This is an expansion module that connects directly to compatible MicroLogix controllers via the built-in expansion port. It does not require separate power or communication configuration.

Key Features

• 8 Relay Outputs:​ Eight Form A (SPST-NO) relay contacts

• Wide Voltage Range:​ Switches 5-250V AC or DC loads

• 2A Rating:​ 2A per channel switching capability

• Common Groups:​ Two groups of 4 points for wiring flexibility

• Status Indicators:​ Individual LED indicators for each output channel

• Removable Terminals:​ Screw terminal blocks for easy wiring

• Flexible Load Switching:​ Compatible with AC and DC loads up to 250V

• Direct Connection:​ Plugs directly into MicroLogix controller expansion port

• Compact Design:​ Small footprint for space-constrained applications

• Industrial Grade:​ Designed for harsh industrial environments

• High Reliability:​ Proven relay technology with long mechanical life

• Automatic Recognition:​ Automatically recognized by MicroLogix controllers

Load Ratings and Characteristics

Typical Applications

• Machine Control:​ Contactor and starter coil control

• Process Automation:​ Solenoid valve and actuator control

• Material Handling:​ Conveyor motor control and diverter actuation

• Packaging Machinery:​ Heater, sealer, and glue valve control

• HVAC Control:​ Fan, pump, and damper motor control

• Building Automation:​ Lighting control and equipment sequencing

• Water/Wastewater:​ Pump control and valve actuation

• Test Equipment:​ Load switching and circuit control

• Energy Management:​ Load shedding and power control

• Safety Circuits:​ Emergency stop and safety relay interfacing

Important Technical Notes

1. Controller Compatibility:​ Compatible with MicroLogix 1100, 1200, and 1400 controllers. Not compatible with MicroLogix 1000.

2. Power Requirements:​ Powered directly from controller expansion port. Ensure controller can supply required 5V DC @ 150 mA.

3. Load Ratings:​ Ratings are for resistive loads. Derate for inductive, capacitive, or lamp loads. Consult derating curves for specific applications.

4. Inductive Load Suppression:​ Use appropriate suppression (RC snubbers, varistors, MOVs, or diodes) for inductive loads to protect relay contacts and extend life.

5. Inrush Current:​ Limit inrush current to 10A maximum for 20 ms. Use inrush current limiters for high inrush loads like lamps or motors.

6. Common Groups:​ Outputs are grouped as channels 0-3 (common 0) and channels 4-7 (common 1). Proper common connection is required for each group.

7. Wiring:​ Use proper wire size (12-24 AWG) and follow NEC/IEC standards. Separate high-voltage and low-voltage wiring in separate conduits.

8. Fusing:​ External fusing required for each output circuit as per local electrical codes and safety standards. Consider fast-acting fuses for protection.

9. Environmental Conditions:​ Install in appropriate enclosure for protection. IP20 provides limited protection against dust and moisture.

Note: For complete installation guidelines, wiring diagrams, configuration instructions, and detailed technical data, consult the official Allen-Bradley 1762 Series Technical Manual. Always verify the exact model number configuration with the manufacturer, as notation variations may occur.