Digital DC Output Module | Allen-Bradley 1746-OB32

Overview

The Allen-Bradley 1746-OB32 is a 32-point digital DC output module compatible with SLC 500 controllers. Engineered for precise signal switching, it delivers high-speed, reliable outputs for industrial automation applications, providing robust performance under varying operating conditions.

Technical Specifications

Module Information

• Model: 1746-OB32

• Type: Digital DC Output Module

• System Compatibility: Allen-Bradley SLC 500

Electrical Performance

• Nominal Output Voltage: 24 VDC

• Voltage Range: 5–50 VDC

• Current Per Output: 0.25–0.5 A per point

• Maximum Module Current: 8 A

• Points Per Common: 16

• Backplane Current (5V): 190 mA

Timing and Response

• Signal Delay ON: 0.1 ms

• Signal Delay OFF: 1.0 ms

• Step Response: 60 ms rising, 2.5 ms falling

Environmental & Physical

• Operating Temperature: 0–60 °C

• Weight: 0.37 kg (0.81 lb)

Applications

The 1746-OB32 module is ideal for switching discrete devices, controlling relays, solenoids, and indicator lights within SLC 500 systems. Its fast response and stable output make it suitable for process control, machine automation, and production line management.

FAQ

Q: How many output points does the module provide?
A: 32 digital DC output points.

Q: What voltage range is supported?
A: 5–50 VDC nominal, optimized for 24 VDC operation.

Q: What is the maximum current per module?
A: 8 A total across all outputs.

Q: Can this module handle fast switching?
A: Yes, signal delay ON is 0.1 ms, OFF is 1 ms, with step response of 60 ms rising and 2.5 ms falling.