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Allen Bradley 1771-HM High Density Input Module

Allen Bradley 1771-HM High Density 16 Point, 120V AC Input Module.

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ManufacturerAllen Bradley

Part number1771-HM

Number of Inputs 16

Voltage 120V AC

Isolation Field to Logic

Backplane Current 75mA @ 5V DC

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16 high-density inputs 120V AC operation Compatible with SLC 500 and PLC-5 Field-to-logic isolation Compact design Reliable performance

Product description

The Allen Bradley 1771-HM is a high-density input module designed for use with SLC 500 and PLC-5 programmable logic controllers. This module provides 16 input points operating at 120V AC, allowing for a large number of discrete input signals to be monitored by the PLC.

This module is commonly used in general manufacturing, material handling, and process control applications where a significant number of 120V AC inputs are required. It offers a compact solution for expanding the I/O capabilities of existing systems.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the 1771-HM. We are dedicated to providing reliable automation components, ensuring your industrial control systems remain operational and efficient.

Technical specifications

Number of Inputs	16
Voltage	120V AC
Isolation	Field to Logic
Backplane Current	75mA @ 5V DC
Module Type	Input
Series	1771 I/O

Common applications

General Manufacturing

Material Handling

Process Control

Machine Automation

Assembly Lines

Power Distribution Monitoring

Compatible systems

SLC 500 (all models) PLC-5 (all models)

Also known as

Allen Bradley 1771-HM input card 16 point 120V AC module SLC 500 input module

Replaces / compatible with

This module can be used to replace existing 1771-HM modules or to expand I/O on SLC 500 and PLC-5 systems requiring 120V AC inputs.

Technical note

Expert tip

Requires a 1771-series chassis or an SLC 500 chassis with a 1771 I/O adapter to function.

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Frequently asked questions

What is the voltage rating and input type for the Allen Bradley 1771-HM module?

The Allen Bradley 1771-HM is a 16-point input module designed for 120V AC signals. It provides a reliable way to interface discrete 120V AC devices with your SLC 500 or PLC-5 controller.