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

Allen-Bradley · PLCs & Industrial Controllers

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.

Brand: Allen-Bradley · Category: PLCs & Industrial Controllers

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.

Specifications

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