Allen-Bradley 1746-IA16

Technical specifications

Manufacturer

Allen-Bradley

Manufacturer part no.

1746-IA16

Type

Digital input module

Application

I/O module

Used with

SLC 500 1746 chassis

Number of inputs

16

Voltage category

100/120V AC

Operating voltage

85…132V AC @ 47…63 Hz

Backplane current

85 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

• 16 AC input points per module
• Operating range of 85 to 132V AC
• Operates at 47 to 63 Hz
• Nominal input of 12 mA at 120V AC
• Draws 85 mA from the backplane

About the Allen-Bradley 1746-IA16

The 1746-IA16 is an SLC 16 point AC input module, now discontinued. Its 16 inputs take 100/120V AC, working from 85 to 132V AC at 47 to 63 Hz, with a nominal input of 12 mA at 120V AC and a backplane current of 85 mA (selection guide 1747-SG001). Off-state voltage is 30V AC, off-state current 2 mA and inrush current 0.8 A.

What is the 1746-IA16 used for?

It brings 16 120V AC signals from field contacts into an SLC 500 system. The signal on delay is 35 ms max and the signal off delay 45 ms max.

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-IA16, 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.