1791-8AR | Allen-Bradley Block I/O Module 120V AC 8 Inputs 8 Relay Outputs
1791-8AR | Allen-Bradley Block I/O Module 120V AC 8 Inputs 8 Relay Outputs
1791-8AR | Allen-Bradley Block I/O Module 120V AC 8 Inputs 8 Relay Outputs
    1791-8AR | Allen-Bradley Block I/O Module 120V AC 8 Inputs 8 Relay Outputs
1791-8AR | Allen-Bradley Block I/O Module 120V AC 8 Inputs 8 Relay Outputs

1791-8AR | Allen-Bradley Block I/O Module 120V AC 8 Inputs 8 Relay Outputs

Part #: 1791-8AR Manufactured by: Allen-Bradley
Regular price
$4,485.00
Sale price
$4,485.00
Regular price
3 in Stock
Condition: New – Open box
Shipping calculated at checkout.
Product Overview
120V ac BLOCK I/O Allen-Bradley AB with 8 Inputs per Block and 8 Outputs per Block.
We accept:
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Venmo
  • Visa
Contact Us!

Talk to a real expert.

Mon–Sat, 7:00 AM – 8:00 PM (EST)
warranty
IQElectro 2-Year Warranty
Warranty for Product #: 1791-8AR
IQElectro offers a free 2-year warranty on all products. You can trust that every purchase is a reliable investment in the future of your company. Warranty Terms
2-3 Day Free Shipping
Packed Ready to Ship
24/7 Expert Support
Return within 30-Days
IQElectro BBB Business Review
IQElectro is Not an authorized distributor for Allen-Bradley
Original Manufacturer's Warranty Not Covered, This Product is SURPLUS.

Product Description P/N: 1791-8AR

Description / Specifications

Description

The Allen-Bradley 1791-8AR is a Block I/O module designed for distributed control applications requiring reliable AC input monitoring and relay-based output switching. With 16 total points—eight 120V AC inputs and eight relay outputs—it provides flexible interfacing for machine control, automation panels, and remote I/O architectures. Its compact design and robust electrical performance ensure dependable operation in a wide range of industrial environments.


 

Technical Specifications 

Condition New/Never Used Surplus
Brand Allen-Bradley
Category PLCs / Machine Control
Part Number 1791-8AR
Subcategory Block I/O Module
Type Remote I/O
Supply Voltage 85–132 VAC
Number of Points 16 (8 Inputs / 8 Relay Outputs)
Input Voltage 120V AC
Output Voltage 20–30 VDC (Relay Output)
Output Type Relay
Application Distributed I/O for Remote Control Panels
Mounting Block I/O Module Form Factor

 

 

Information About 1791-8AR

The Allen-Bradley 1791-8AR Block I/O module provides a compact, integrated solution for systems requiring both AC input detection and DC relay output actuation. Designed for use in Remote I/O applications, it communicates seamlessly with Allen-Bradley controllers within distributed architectures. Its eight 120V AC input channels enable direct connection to field devices such as switches, sensors, and pilot devices, while the eight relay outputs support switching of DC loads up to 20–30 VDC. Built for dependable industrial performance, the module reduces panel space, simplifies wiring, and enhances installation efficiency in automation systems.

Key Features:

  • 16-Point Mixed I/O Design: Combines eight 120V AC inputs with eight relay outputs, allowing streamlined connectivity to both sensing and actuation devices.
  • Wide AC Supply Range: Operates on 85–132 VAC, providing flexibility for standard industrial power environments and remote I/O architectures.
  • Relay Output Flexibility: Supports 20–30 VDC relay outputs suitable for solenoids, signal lamps, small motors, and other discrete loads.
  • Integrated Remote I/O Capability: Designed for seamless communication within Allen-Bradley distributed systems, reducing wiring complexity and enabling scalable control.
  • Compact Block-Mount Construction: Minimizes enclosure footprint while offering durable mechanical structure suited for harsh industrial conditions.
  • Direct Field Device Interface: Allows straightforward connection to switches, limit sensors, and external contacts without requiring additional signal conditioning.
  • Reliable Industrial Performance: Provides stable AC detection and dependable relay switching for machinery, conveyors, and process equipment.
  • Ideal for Distributed Control Systems: Enhances flexibility in applications where remote modular I/O is required for production lines or geographically separated equipment.

The 1791-8AR delivers the reliability and precision required for mixed AC/DC signal handling in distributed Allen-Bradley Remote I/O control architectures.

Get fast quote and compatibility check
Compatibility check available   ·   Alternative parts suggested
Get a response to your request within 5 minutes
Talk to a real industrial automation specialist.
We verify compatibility, suggest alternatives, and provide fast quotes.
Something went wrong, please try again
Form image
Arty A.
Senior Sales Manager
Daniel S.
Parts Specialist
Request successfully sent!
Estimated response time: 1 to 5 minutes.
IQElectro is not an authorized distributor.
IQElectro LLC (IQElectro) is NOT an Authorized Distributor or in any way affiliated with Rockwell Automation, Siemens, or any other Manufacturers. IQElectro is NOT an Authorized Dealer of this product. The product may be of older version, date codes, or design than that available from authorized dealers. As IQElectro is not an authorized dealer of this product, the Original Manufacturer's Warranty and Support DO NOT apply. IQElectro sells SURPLUS only and DOES NOT SELL SOFTWARE or FIRMWARE licenses For more detailed information, please refer to the full version of our disclaimer policy Disclaimer Policy.
Description / Specifications

Description

The Allen-Bradley 1791-8AR is a Block I/O module designed for distributed control applications requiring reliable AC input monitoring and relay-based output switching. With 16 total points—eight 120V AC inputs and eight relay outputs—it provides flexible interfacing for machine control, automation panels, and remote I/O architectures. Its compact design and robust electrical performance ensure dependable operation in a wide range of industrial environments.


 

Technical Specifications 

Condition New/Never Used Surplus
Brand Allen-Bradley
Category PLCs / Machine Control
Part Number 1791-8AR
Subcategory Block I/O Module
Type Remote I/O
Supply Voltage 85–132 VAC
Number of Points 16 (8 Inputs / 8 Relay Outputs)
Input Voltage 120V AC
Output Voltage 20–30 VDC (Relay Output)
Output Type Relay
Application Distributed I/O for Remote Control Panels
Mounting Block I/O Module Form Factor

 

 

Information About 1791-8AR

The Allen-Bradley 1791-8AR Block I/O module provides a compact, integrated solution for systems requiring both AC input detection and DC relay output actuation. Designed for use in Remote I/O applications, it communicates seamlessly with Allen-Bradley controllers within distributed architectures. Its eight 120V AC input channels enable direct connection to field devices such as switches, sensors, and pilot devices, while the eight relay outputs support switching of DC loads up to 20–30 VDC. Built for dependable industrial performance, the module reduces panel space, simplifies wiring, and enhances installation efficiency in automation systems.

Key Features:

  • 16-Point Mixed I/O Design: Combines eight 120V AC inputs with eight relay outputs, allowing streamlined connectivity to both sensing and actuation devices.
  • Wide AC Supply Range: Operates on 85–132 VAC, providing flexibility for standard industrial power environments and remote I/O architectures.
  • Relay Output Flexibility: Supports 20–30 VDC relay outputs suitable for solenoids, signal lamps, small motors, and other discrete loads.
  • Integrated Remote I/O Capability: Designed for seamless communication within Allen-Bradley distributed systems, reducing wiring complexity and enabling scalable control.
  • Compact Block-Mount Construction: Minimizes enclosure footprint while offering durable mechanical structure suited for harsh industrial conditions.
  • Direct Field Device Interface: Allows straightforward connection to switches, limit sensors, and external contacts without requiring additional signal conditioning.
  • Reliable Industrial Performance: Provides stable AC detection and dependable relay switching for machinery, conveyors, and process equipment.
  • Ideal for Distributed Control Systems: Enhances flexibility in applications where remote modular I/O is required for production lines or geographically separated equipment.

The 1791-8AR delivers the reliability and precision required for mixed AC/DC signal handling in distributed Allen-Bradley Remote I/O control architectures.

Check Out These Related Products