Allen-Bradley | 1746-OB32 | SLC 500

Product Description: Allen-Bradley 1746-OB32

The Allen-Bradley 1746-OB32 is a digital DC output module from the SLC 500 series, designed to interface output devices with a programmable logic controller (PLC). This module provides 32 sourcing (positive logic) outputs and operates at 10–50V DC, making it ideal for applications that require high-density digital outputs for controlling actuators, relays, solenoids, or indicator lights. It is compatible with SLC 500 chassis and integrates seamlessly with other Allen-Bradley SLC I/O modules for modular, expandable automation systems.

Product Type

• Digital DC Output Module
• Platform: SLC 500
• Output Type: Sourcing (positive logic)
• Number of Outputs: 32

Key Features

• 32 sourcing outputs for driving DC loads
• Operating voltage: 10–50V DC
• Output current per point: 0.5 A max
• Total module current: 8 A max (4 A per side)
• LED status indicators for each output
• Removable terminal blocks for easy wiring
• Designed for high-density applications
• Short-circuit protection with fused outputs
• Compact and easy to integrate into existing SLC 500 systems

Technical Specifications

• Output Voltage Range: 10–50V DC
• Output Current:
  • 0.5 A per point (max)
• Isolation Voltage: 1500V RMS (field to logic)
• Backplane Current Draw: 200 mA @ 5V DC
• Response Time:
  • Turn ON: 0.1 ms
• Module Type: Sourcing (provides positive voltage)
• Connection Type: 40-pin removable terminal block
• Operating Temp: 0°C to 60°C
• Certifications: UL, CSA, CE

Application Areas

• Industrial automation systems
• Packaging and assembly machinery
• Material handling equipment
• Conveyor control
• Process control systems requiring multiple digital outputs

Advantages

• High output density reduces panel space
• Fast response times for time-critical applications
• Reliable and field-proven SLC 500 architecture
• Easily replaceable and serviceable
• Compatible with a wide range of DC-powered field devices