Allen-Bradley 1746-IB32

Technical specifications

Manufacturer

Allen-Bradley

Manufacturer part no.

1746-IB32

Type

Digital input module

Application

I/O module

Used with

SLC 500 1746 chassis

Number of Inputs

32

Points Per Common

8

Voltage Category

24V DC

Operating Voltage Range

15…30V, DC @ 50 °C (122 °F) 15…26.4V, DC @ 60 °C (140 °F)

Backplane Current (mA) @ 5V

50 mA

Backplane Current (mA) @ 24V

0 mA

Voltage, Off-State Input, max.

5.0V DC

Nominal Input Current

5.1 mA @ 24V DC

Current, Off-State Input, Max.

1.5 mA

Signal On Delay, Max

3 ms max

Technical documents (1)

• Rockwell Automation SLC 500 systems selection guide 1747-SG001

Key features

• 32 input points in one module
• 8 points per common
• 24V DC voltage category
• Maximum signal on delay of 3 ms
• Draws 50 mA at 5V from backplane

About the Allen-Bradley 1746-IB32

The 1746-IB32 is an SLC 32 point DC input module, now discontinued. Its 32 inputs take 24V DC at 8 points per common, with an operating range of 15…30V DC at 50 °C (122 °F) and 15…26.4V DC at 60 °C (140 °F). Nominal input current is 5.1 mA at 24V DC and the signal on delay is 3 ms maximum.

What is the 1746-IB32 used for?

It brings 32 24V DC signals into an SLC 500 system in one slot. Off-state is 5.0V DC and 1.5 mA maximum, and it draws 50 mA at 5V and 0 mA at 24V from the backplane.

Lifecycle and successor

Discontinued (Rockwell Automation lifecycle status, checked 24 October 2026).

Before you order

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

Read the catalog number 1746-IB32, 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.