1746-OB32E | Allen-Bradley | SLC 500 Digital DC Output Module

Overview

The Allen-Bradley 1746-OB32E is a high-density digital DC output module from the SLC 500 series. Designed for reliable control of field devices, it delivers 32 individually addressable outputs with robust current handling and fast response times. Ideal for applications requiring high current and precise timing.

Technical Specifications

• Manufacturer: Allen-Bradley

• Product Line: SLC 500

• Model / Part Number: 1746-OB32E

• Product Type: Digital DC Output Module

• Weight: 0.31 lbs (0.14 kg)

• Number of Outputs: 32 DC outputs

• Output Voltage Range: 10–30 V DC

• Nominal Output Voltage: 24 V DC

• Output Current per Channel: 0.25–0.5 A

• Total Module Current: 8 A

• Points per Common: 16

• Backplane Current (5V): 190 mA

• Step Response Time: 60 ms rising, 2.5 ms falling

• Signal Delay ON: 0.1 ms

• Signal Delay OFF: 1.0 ms

• Applications: High-current digital control

• Compatible Series: SLC 500

Key Features

• 32 fully addressable DC outputs

• Handles up to 0.5 A per channel for high-current applications

• Fast response and low signal delay for precise control

• Supports multiple points per common for flexible wiring

• Compact module with minimal backplane load

• Suitable for controlling relays, solenoids, and indicators

Application Scenarios

• High-current device control in SLC 500 systems

• Actuator and solenoid operations in automated processes

• Relay switching and indicator management

• Distributed I/O applications requiring precise timing

FAQs

• Q: What is the maximum current per output?

• A: Each output supports 0.5 A maximum.

• Q: How many points share a common terminal?

• A: Sixteen points per common.

• Q: What is the module’s step response time?

• A: 60 milliseconds for rising, 2.5 milliseconds for falling edges.

• Q: What voltage range does it support?

• A: 10–30 V DC, nominal 24 V DC.