Allen-Bradley 1794-IB16

Technical specifications

Manufacturer

Allen-Bradley

Manufacturer part no.

1794-IB16

Type

Digital input module

Application

I/O module

Used with

FLEX I/O adapters and terminal bases

Voltage, on-state input, min

10V DC, sinking

Voltage, on-state input, nom

24V DC

Voltage, on-state input, max

31.2V DC

Voltage, off-state input, max

5V DC

Current, on-state input, min

2.0 mA

Current, on-state input, nom

8 mA @ 24V DC

Current, on-state input, max

12 mA

Current, off-state input, max

1.5 mA

Power dissipation, max

6.1 W @ 31.2 W @ 31.2V, DC

Thermal dissipation, max

20.8 BTU/hr @ 31.2V DC

Dimensions (HxWxD), approx

46 x 94 x 53 mm (1.8 x 3.7 x 2.1 in.) 94 x 94 x 69 mm (3.7 x 3.7 x 2.7 in.) installed

Isolation voltage

Type tested at 707V DC for 60 s

Temperature, operating

-20…+55 °C (-4…+131 °F)

Technical documents (1)

• Rockwell Automation FLEX I/O selection guide 1794-SG002

Key features

• 16 sink digital inputs at 24V DC nominal
• On-state input voltage from 10V to 31.2V DC
• Off-state input voltage of 5V DC maximum
• Type tested isolation at 707V DC for 60 s
• Operating temperature range of -20 to +55 °C

About the Allen-Bradley 1794-IB16

The 1794-IB16 is a FLEX I/O 16 point 24V DC sink input module for the 1794 Flex, Flex Ex and Flex XT system. On-state current is 8 mA at 24V DC nominal, and it dissipates up to 6.1 W at 31.2V DC. It measures approximately 46 x 94 x 53 mm (1.8 x 3.7 x 2.1 in.).

What is the 1794-IB16 used for?

It brings 16 24V DC signals from sourcing field devices into a FLEX I/O node. The on-state range is 10V to 31.2V DC, and off-state is 5V DC and 1.5 mA maximum.

Lifecycle and successor

Active Mature (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 1794-IB16, 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.