Allen-Bradley 1746-OBP8

Technical specifications

Manufacturer

Allen-Bradley

Manufacturer part no.

1746-OBP8

Type

Digital output module

Application

I/O module

Used with

SLC 500 1746 chassis

Number of outputs

8

Voltage category

24V DC

Operating voltage

20.4…26.4V DC

Backplane current

135 mA

Voltage drop

1.0V @ 2.0 A

Load current, min.

1 mA

Signal on delay

1.0 ms

Signal off delay

2.0 ms

Continuous

8.0 A @ 0…60 °C (32…140 °F)

Technical documents (1)

• Rockwell Automation SLC 500 systems selection guide 1747-SG001

Key features

• Eight digital outputs per module
• Operating voltage of 20.4…26.4V DC
• Backplane current of 135 mA
• Signal on delay 1.0 ms, off delay 2.0 ms
• Voltage drop of 1.0V at 2.0 A

About the Allen-Bradley 1746-OBP8

The 1746-OBP8 is an SLC 8 point digital output module, now discontinued. Its 8 outputs are in the 24V DC category, working from 20.4…26.4V DC, with a voltage drop of 1.0V at 2.0 A and a minimum load current of 1 mA. The continuous rating is 8.0 A at 0…60 °C (32…140 °F), and it draws 135 mA from the backplane.

What is the 1746-OBP8 used for?

It switches heavier 24V DC loads from an SLC 500 controller, up to 2.0 A per point. Signal delays are 1.0 ms on and 2.0 ms off.

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-OBP8, 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.