Allen-Bradley | SLC 500 1746-IB32 24VDC Input Module

Product Description

The 1746-IB32 is a 32-point digital input module designed for Allen-Bradley SLC 500 programmable logic controllers. It supports 24 V DC sinking inputs, providing reliable signal interfacing for industrial control applications such as process monitoring, machine automation, and distributed I/O systems.

Engineered for high-density installations, this module delivers stable input performance across a wide voltage range and maintains low power dissipation, even in continuous-operation environments.

Technical Specifications

• Manufacturer: Allen-Bradley

• Model / Part Number: 1746-IB32

• Product Type: Digital DC Input Module

• Series: SLC 500

• Input Type: Current-sinking DC inputs

• Number of Inputs: 32 points

• Nominal Voltage: 24 V DC

• Operating Voltage Range:

• 15 – 30 V DC @ 50 °C (122 °F)

• 15 – 26.4 V DC @ 60 °C (140 °F)

• Nominal Input Current: 5.1 mA @ 24 V DC

• Heat Dissipation per Point: 0.20 W

• Minimum Heat Dissipation: 0.25 W

• Total Power Dissipation: 6.65 W

• Mounting System: Standard SLC 500 chassis

• Dimensions: 4 × 13 × 15 cm

• Weight: 0.14 kg

Key Features

• 32 sinking-type input points for high-density digital input applications

• Compact design for efficient use in SLC 500 chassis slots

• Wide input voltage tolerance ensures reliable operation in diverse environments

• Low heat generation for stable long-term performance

• Ideal for process control and machine automation systems

Applications

• Industrial machine input monitoring

• Manufacturing process control systems

• Distributed automation and digital signal interfacing