Allen-Bradley 1746-OW8

Technical specifications

Manufacturer

Allen-Bradley

Manufacturer part no.

1746-OW8

Type

Digital output module

Application

I/O module

Used with

SLC 500 1746 chassis

Number of outputs

8

Points per common

4

Voltage category

AC/DC Relay

Operating voltage range

5…125V DC 5…265V AC

Backplane current (mA) @ 5V

85 mA

Backplane current (mA) @ 24V

90 mA

Load current, min

10 mA @ 5V DC

Leakage current, off-state output, max

0 mA

Signal on delay, max (resistive load)

10 ms

Continuous current per point

See relay contact ratings

Continuous current per module

16.0 A AC 8.0 A/Common

Technical documents (1)

• Rockwell Automation SLC 500 systems selection guide 1747-SG001

Key features

• 8 outputs with 4 points per common
• AC/DC relay voltage category
• Operating range 5…125V DC and 5…265V AC
• Backplane current 85 mA at 5V, 90 mA at 24V
• Maximum signal on delay of 10 ms, resistive load

About the Allen-Bradley 1746-OW8

The 1746-OW8 is an SLC 8 point relay output module, now discontinued. Its 8 AC/DC relay outputs sit at 4 points per common, working from 5…125V DC and 5…265V AC (selection guide 1747-SG001). It draws 85 mA at 5V and 90 mA at 24V from the backplane. Current per point follows the relay contact ratings; per module it is 16.0 A AC, 8.0 A per common.

What is the 1746-OW8 used for?

It switches AC or DC loads from an SLC 500 controller through relay contacts. Minimum load current is 10 mA at 5V DC, off-state leakage is 0 mA, and the signal on delay is 10 ms maximum with a resistive load.

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-OW8, 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.