Allen Bradley 1791-24A8 Block I/O Module

Product Introduction

The Allen-Bradley 1791-24A8 Block I/O Module is a mixed AC digital I/O module designed for industrial automation systems that require both high-voltage input monitoring and output control. Developed by Rockwell Automation under the Allen-Bradley Block I/O series, this module is widely used in applications involving AC-powered field devices.

It provides 24 digital input channels (divided into 3 groups of 8) and 8 digital output channels, supporting AC voltage operation up to 120 VAC nominal. The module is designed to interface directly with AC sensors, switches, and actuators, eliminating the need for intermediate signal conversion.

With its integrated block design, the 1791-24A8 simplifies installation, reduces wiring complexity, and ensures stable performance in industrial environments where AC signal control is required.

Product Specifications

Applications

• AC-Based Industrial Control Systems
Handles high-voltage AC input signals and output control in industrial environments.

• Production and Assembly Lines
Monitors AC-powered sensors and controls actuators such as contactors and relays.

• Building and Facility Automation
Interfaces with AC control circuits in HVAC, lighting, and infrastructure systems.

• Material Handling Systems
Controls AC-driven conveyors and monitors system status signals.

• Process Automation Applications
Used in systems requiring reliable AC signal acquisition and switching.

• OEM Equipment for AC Systems
Ideal for machinery designed with AC control architecture.

Advantages

• AC Signal Compatibility
Directly supports AC input and output signals, eliminating the need for converters.

• High Input Channel Density
Provides 24 input channels for extensive signal monitoring.

• Integrated Mixed I/O Design
Combines input and output functionality in a single compact module.

• Stable High-Voltage Operation
Designed for reliable operation under standard industrial AC voltage levels.

• Simplified Installation
Block I/O design reduces wiring complexity and installation time.

• Robust Industrial Performance
Engineered for continuous operation in demanding environments.

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