Allen-Bradley 1746-OW8 | SLC 500 Digital Contact Output Module

The 1746-OW8 from Allen-Bradley is an 8-channel SLC 500 digital contact output module. It supports normally open (N.O.) relay outputs with 5–265V AC or 5–125V DC operating voltage. The module has two output groups with four channels per common for efficient load management.

Technical Specifications

• Manufacturer: Rockwell Automation

• Brand: Allen-Bradley

• Part Number: 1746-OW8

• Series: SLC 500

• Module Type: Digital Contact Output Module

• Outputs: 8 N.O. relay channels

• Output Groups: 2 (4 channels per common)

• Operating Voltage: 5–265V AC or 5–125V DC

• Current/Output (120 VAC): 1.5 A

• Current/Output (24V DC): 1.2 A

• Backplane Current: 0.85–0.9 A

• Step Response: 60 ms in, 2.5 ms out

• Signal Delay (Resistive Load): On = 10 ms, Off = 10 ms

• Operating Temp: -25–60°C (-13–140°F)

• Nonoperating Temp: -40–85°C (-40–185°F)

• Vibration: 2g at 10–500 Hz

• Shock: 30g

• Max Heat Dissipation: 3.7 W, 0.138 W per point

Applications

The 1746-OW8 is widely used in industrial automation for:

• Controlling multiple machines with relay contact outputs.

• Coordinating processes in distributed SLC 500 control systems.

• Data acquisition and process control integration.

Features and Benefits

The 1746-OW8 delivers fast response times with reliable relay outputs. Its compact design allows installation in modular or fixed SLC 500 systems. The module enhances system reliability and ensures precise operation in industrial environments.

Compatibility

This module works with SLC 5/01, SLC 5/02, SLC 5/03, SLC 5/04, and SLC 5/05 controllers. It fits fixed or modular hardware and complies with Pollution Level 2 standards.