Allen Bradley 1771-IAD AC/DC Input Module

Overview

The Allen Bradley 1771-IAD is an AC/DC input module designed for PLC-5 and 1771 series automation systems. It is used to receive and process discrete input signals from field devices such as switches, sensors, and control contacts. This module provides reliable signal acquisition for industrial control and monitoring applications.

General Information

Part Number: 1771-IAD

Manufacturer: Allen-Bradley (Rockwell Automation)

Brand: Allen-Bradley

Country of Origin: USA

Series: 1771 I/O System / PLC-5

Product Type: AC/DC Digital Input Module

Mounting Type: Installed within 1771 I/O chassis

Function: Receives AC/DC digital input signals from field devices

Design: Industrial-grade discrete input module

Power Specifications

Input Voltage: AC/DC signal compatible (field input dependent)

Backplane Power: Supplied via 1771 chassis

Power Consumption: Low-power electronic module

Isolation: Channel-to-backplane optical isolation

Protection: Surge and noise protection for industrial environments

Communication & Interface

Interface Type: 1771 backplane I/O communication bus

Input Channels: Multiple discrete AC/DC input points

Signal Type: ON/OFF digital field signals

Diagnostics: LED status indicators per channel

System Integration: Compatible with PLC-5 and 1771 I/O architecture

Environmental

Operating Temperature: 0 to 60 °C

Storage Temperature: -40 to 85 °C

Humidity: 5% to 95% non-condensing

Vibration Resistance: Industrial cabinet installation standard

Protection Rating: IP20 when installed in enclosure

Installation Environment: Industrial control cabinet required

Dimensions & Weight

Dimensions (H × W × D): 165 × 51 × 89 mm

Weight: 0.45 kg

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