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Allen Bradley

Allen Bradley 1771-WH Power Output Module

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ManufacturerAllen Bradley

Part number1771-WH

Points 4

Output Voltage 120V AC

Load Current 2A per point, 4A total

Isolation Photocoupler

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Veteran-owned

CAGE: 9NK75

4 isolated 120VAC output points Suitable for PLC-2, PLC-3, PLC-5 High reliability Robust industrial design Control of AC loads

Product description

The Allen Bradley 1771-WH is a power output module for the 1771 I/O family, designed for PLC-2, PLC-3, and PLC-5 systems. This module provides four 120VAC output points, enabling control of higher voltage devices such as solenoids, lights, and relays. It offers a robust solution for power output needs.

This module is widely used in industrial automation for controlling AC loads in manufacturing plants, material handling systems, and other process control applications. Its reliability makes it a staple in legacy Allen-Bradley control systems.

Stanlo Automation, a veteran-owned surplus industrial parts distributor, specializes in providing hard-to-find components like the Allen Bradley 1771-WH. We ensure you can maintain your existing systems with quality surplus parts, delivered efficiently.

Technical specifications

Points	4
Output Voltage	120V AC
Load Current	2A per point, 4A total
Isolation	Photocoupler
PLC Compatibility	PLC-2, PLC-3, PLC-5

Common applications

Solenoid Control

Pilot Lights

Relay Control

Pump Starters

Fan Control

General AC Load Switching

Compatible systems

Allen Bradley PLC-2 Allen Bradley PLC-3 Allen Bradley PLC-5

Also known as

AB 1771-WH Allen Bradley 1771 Output Module 4 Point AC Output

Replaces / compatible with

This module replaces other 4-point, 120VAC output modules within the 1771 I/O family. It is backward compatible with older PLC systems.

Technical note

Expert tip

Each output point on the 1771-WH module has a maximum switching current of 2A, with a total module current limit of 4A.

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Frequently asked questions

What type of loads can be controlled by the Allen Bradley 1771-WH module?

The Allen Bradley 1771-WH module is designed to control AC loads operating at 120V. This includes devices like solenoids, indicator lights, control relays, and small motor starters, providing up to 2A per point.