Allen-Bradley

Allen-Bradley 1746-OW4 SLC 500 Digital Contact Output Module

SKU 1746-OW4

In stock
  • 12-month warranty
  • Free returns within 30 days
  • Manufacturer: Allen-Bradley
  • Product No.: 1746-OW4
  • Origin United States
  • Product Type: PLC Output Module
  • Payment: T/T, Western Union
  • Weight: 0.2 kg
  • Dimensions: 11.8 x 3.5 x 8.7 cm
  • Shipping port: Xiamen
  • Warranty: 12 months

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Product Documentation

Technical Datasheet (PDF) Complete specifications and technical drawings.

Technical Datasheet

Allen-Bradley 1746-OW4 SLC 500 Digital Contact Output Module

Quantity

Product Description

Description

The Allen-Bradley 1746-OW4 is a reliable digital contact output module designed specifically for the Allen-Bradley SLC 500 modular hardware platform. As part of the 1746 I/O product family, this module provides discrete relay output capabilities to interface your controller with high-capacity actuators, control relays, motor starters, and pilot lights across various industrial automation environments.

Featuring isolated relay contacts, the 1746-OW4 accommodates both AC and DC load types, offering versatile signal switching flexibility for complex control panels. It features 4 normally open relay output points, allowing multi-voltage distribution across separate loads without sharing a common power bus. The robust construction ensures dependable operation within standard industrial temperature ranges and vibration tolerances typical of factory floors.

Features

  • 4 discrete normally open relay output channels
  • Supports multi-voltage operations ranging from 5 to 265VAC and 5 to 125VDC
  • Individual output isolation for flexible power zoning
  • Compatible with Allen-Bradley SLC 500 fixed and modular rack controllers
  • Low backplane current draw from 5VDC and 24VDC system supplies
  • Pluggable terminal block for simplified field wiring and maintenance

Applications

  • Industrial machinery and discrete manufacturing lines
  • HVAC control systems and building automation
  • Pump and valve control panels
  • Interface between low-voltage controller logic and high-voltage field devices
  • Material handling and conveyor systems

Technical Specifications

Parameter Specification
Manufacturer Allen-Bradley / Rockwell Automation
Product Line SLC 500 (1746 I/O)
Catalog Number 1746-OW4
Module Type Digital Contact (Relay) Output Module
Number of Outputs 4 Normally Open (Isolated)
Operating Voltage Range 5 to 265VAC, 5 to 125VDC
Continuous Current per Module 8.0 A AC / 8.0 A DC max (per common)
Signal Delay (Max Resistive Load) ON: 10.0 ms / OFF: 10.0 ms
Backplane Current Consumption 0.045 A @ 5VDC; 0.045 A @ 24VDC
Off-State Leakage Current 0 mA max
Minimum Load Current 10 mA @ 5VDC
Country of Origin United States

Connections / Interfaces

The module interfaces directly to the SLC 500 backplane via its integrated card-edge connector. Field wiring connects through a removable front-access terminal block, enabling quick module replacement without disturbing existing machine wiring. Each output point provides dedicated screw terminals for high-voltage or low-voltage load connections.

Installation Guidelines

  • Always disconnect all external AC and DC power sources from the module and backplane before installing or removing the unit.
  • Insert the 1746-OW4 securely into any available I/O slot of an SLC 500 chassis.
  • Ensure the module latching mechanism is fully engaged to maintain reliable backplane communication and power continuity.
  • Verify that field device current loads do not exceed the per-contact or per-common continuous current ratings.
Shipping & Returns

Global Express Shipping

  • Standard Delivery: 4–6 business days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our technical warranty.
FAQ
What controllers are compatible with the Allen-Bradley 1746-OW4?
The 1746-OW4 is designed for the Allen-Bradley SLC 500 modular controller system and can be installed in any available I/O slot of an SLC 500 chassis.
What is the operating voltage range for the 1746-OW4 module?
This module supports an operating voltage range of 5 to 265VAC or 5 to 125VDC, accommodating various AC and DC control loads.
How many output channels does this module provide?
The 1746-OW4 features 4 discrete normally open relay output channels with isolated commons.
Can I replace the module without rewiring?
Yes, the module utilizes a removable front terminal block, allowing you to replace the hardware unit without disconnecting your established field wiring.
What is the maximum continuous current per common?
The module supports up to 8.0A continuous current per common for AC or DC loads, subject to application limits.
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1746-OW4

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Allen-Bradley 1746-OW4 SLC 500 Digital Contact Output Module

Only 12 item(s) left in stock
  • Manufacturer: Allen-Bradley

  • Product No.: 1746-OW4

  • Country of origin:United States

  • Product Type: PLC Output Module

  • Payment: T/T, Western Union

  • Weight: 200g

  • Dimensions: 11.8 x 3.5 x 8.7 cm

  • Shipping port: Xiamen

  • Warranty: 12 months

Quantity
View full details

Product Description

Description

The Allen-Bradley 1746-OW4 is a reliable digital contact output module designed specifically for the Allen-Bradley SLC 500 modular hardware platform. As part of the 1746 I/O product family, this module provides discrete relay output capabilities to interface your controller with high-capacity actuators, control relays, motor starters, and pilot lights across various industrial automation environments.

Featuring isolated relay contacts, the 1746-OW4 accommodates both AC and DC load types, offering versatile signal switching flexibility for complex control panels. It features 4 normally open relay output points, allowing multi-voltage distribution across separate loads without sharing a common power bus. The robust construction ensures dependable operation within standard industrial temperature ranges and vibration tolerances typical of factory floors.

Features

  • 4 discrete normally open relay output channels
  • Supports multi-voltage operations ranging from 5 to 265VAC and 5 to 125VDC
  • Individual output isolation for flexible power zoning
  • Compatible with Allen-Bradley SLC 500 fixed and modular rack controllers
  • Low backplane current draw from 5VDC and 24VDC system supplies
  • Pluggable terminal block for simplified field wiring and maintenance

Applications

  • Industrial machinery and discrete manufacturing lines
  • HVAC control systems and building automation
  • Pump and valve control panels
  • Interface between low-voltage controller logic and high-voltage field devices
  • Material handling and conveyor systems

Technical Specifications

Parameter Specification
Manufacturer Allen-Bradley / Rockwell Automation
Product Line SLC 500 (1746 I/O)
Catalog Number 1746-OW4
Module Type Digital Contact (Relay) Output Module
Number of Outputs 4 Normally Open (Isolated)
Operating Voltage Range 5 to 265VAC, 5 to 125VDC
Continuous Current per Module 8.0 A AC / 8.0 A DC max (per common)
Signal Delay (Max Resistive Load) ON: 10.0 ms / OFF: 10.0 ms
Backplane Current Consumption 0.045 A @ 5VDC; 0.045 A @ 24VDC
Off-State Leakage Current 0 mA max
Minimum Load Current 10 mA @ 5VDC
Country of Origin United States

Connections / Interfaces

The module interfaces directly to the SLC 500 backplane via its integrated card-edge connector. Field wiring connects through a removable front-access terminal block, enabling quick module replacement without disturbing existing machine wiring. Each output point provides dedicated screw terminals for high-voltage or low-voltage load connections.

Installation Guidelines

  • Always disconnect all external AC and DC power sources from the module and backplane before installing or removing the unit.
  • Insert the 1746-OW4 securely into any available I/O slot of an SLC 500 chassis.
  • Ensure the module latching mechanism is fully engaged to maintain reliable backplane communication and power continuity.
  • Verify that field device current loads do not exceed the per-contact or per-common continuous current ratings.
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Product Documentation

Technical Datasheet (PDF) Complete specifications and technical drawings.

Technical Datasheet

Allen-Bradley 1746-OW4 SLC 500 Digital Contact Output Module

What controllers are compatible with the Allen-Bradley 1746-OW4?

The 1746-OW4 is designed for the Allen-Bradley SLC 500 modular controller system and can be installed in any available I/O slot of an SLC 500 chassis.

What is the operating voltage range for the 1746-OW4 module?

This module supports an operating voltage range of 5 to 265VAC or 5 to 125VDC, accommodating various AC and DC control loads.

How many output channels does this module provide?

The 1746-OW4 features 4 discrete normally open relay output channels with isolated commons.

Can I replace the module without rewiring?

Yes, the module utilizes a removable front terminal block, allowing you to replace the hardware unit without disconnecting your established field wiring.

What is the maximum continuous current per common?

The module supports up to 8.0A continuous current per common for AC or DC loads, subject to application limits.

Global Express Shipping

  • Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).


For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Country of origin
United States

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