1746-IA4 SLC 500 4-Channel 120V AC Digital Input Module

Product Overview

The Allen-Bradley 1746-IA4 is a digital AC input module. It belongs to the SLC 500 series. This module has 4 input channels. It operates at 85 to 132 Volts AC. The 1746-IA4 is ideal for general purpose applications. It provides reliable signal detection. The module draws 35 milliamps from the 5V backplane. It has a compact design. It fits into a single slot. The operating temperature range is 32 to 140 degrees Fahrenheit.

Application Scenarios

Use the 1746-IA4 in industrial automation systems. It works well for monitoring AC signals. Common uses include machine control and process monitoring. It is suitable for factory floors and assembly lines. The module connects to sensors and switches. It helps manage 120V AC inputs. The 1746-IA4 is a key part of many SLC 500 setups. It handles standard on/off signals effectively.

Technical Specifications

Input voltage range: 85-132V AC. Nominal input current: 12 mA at 129V AC. Off state input current: 2 mA. Signal on delay: 35 ms. Signal off delay: 45 ms. Step response: 100 ms in, 2.5 ms out. Power dissipation: 0.27 Watts per point. Maximum thermal dissipation: 1.3 Watts. Dimensions: 5 x 2 x 6 inches. Weight: 0.17 kg. The module uses a 1746-HT or 1746-HCA I/O connection.

Installation & Maintenance Guide

Install the 1746-IA4 into a single slot of the SLC 500 chassis. Ensure the backplane power is off. Connect the wiring using the proper I/O cables. Check the status display for correct operation. Keep the enclosure open for airflow. Do not exceed the voltage limits. Regularly inspect for dust or damage. Follow standard safety procedures during installation.

Packing List

1 x 1746-IA4 SLC 500 Digital Input Module. 1 x Installation manual. The module is shipped in anti-static packaging. Shipping is via FedEx, UPS, or DHL.