Allen-Bradley 1746-IA4

Technical specifications

Manufacturer

Allen-Bradley

Manufacturer part no.

1746-IA4

Type

Digital input module

Application

I/O module

Used with

SLC 500 1746 chassis

Number of inputs

4

Voltage category

100/120V AC

Operating voltage

85…132V AC @ 47…63 Hz

Backplane current

35 mA

Voltage, off-state

30V AC

Nominal input

12 mA @ 120V AC

Current, off-state

2 mA

Inrush current

0.8 A

Signal on delay

35 ms max

Signal off delay

45 ms max

Technical documents (1)

• Rockwell Automation SLC 500 systems selection guide 1747-SG001

Key features

• Four digital inputs per module
• 100/120V AC voltage category
• Operating range 85…132V AC at 47…63 Hz
• Signal on delay 35 ms max, off delay 45 ms max
• Off-state limits of 30V AC and 2 mA

About the Allen-Bradley 1746-IA4

The 1746-IA4 is an SLC 4 point digital input module for 100/120V AC, discontinued on 8/30/2015. It works from 85…132V AC at 47…63 Hz, with a nominal input of 12 mA at 120V AC, an inrush current of 0.8 A and a backplane current of 35 mA (selection guide 1747-SG001). Off-state values are 30V AC and 2 mA.

What is the 1746-IA4 used for?

It brings four 120V AC signals into an SLC 500 system, a small module for a few field contacts. The signal on delay is 35 ms max and the signal off delay is 45 ms max.

Lifecycle and successor

Discontinued (Rockwell Automation lifecycle status, discontinued 8/30/2015, checked 24 October 2026).

Before you order

What to photograph or confirm so the right unit is quoted.

Read the catalog number 1746-IA4, the series letter and the firmware revision from the label. Send us a photo of the label and we confirm the match before we quote.