Allen Bradley 1746-IB32 SLC 500 32-Channel 24V DC Digital Input Module

Product Description

The Allen Bradley 1746-IB32 is a high-density digital input module for the SLC 500 series, designed to handle thirty-two DC input points. It supports a wide operating voltage range and provides reliable signal detection with consistent input delay times. Compact and efficient, the module is ideal for general-purpose DC input applications in industrial automation systems.

Technical Specifications

• Manufacturer Allen Bradley

• Product Line SLC 500 Series

• Product Type Digital DC Input Module

• Part Number 1746-IB32

• Weight 0.38 lbs (0.17 kg)

• Inputs 32 DC input channels

• Nominal Input Voltage 24 V DC (sink)

• Operating Voltage Range

• 15–30 V DC @ 50 °C

• 15–26.4 V DC @ 60 °C

• Input Delay Time OFF to ON: 3 ms

• Signal Delay 3 ms typical

• Off-State Current 1 mA

• Minimum Operating Current 2 mA

• Power Dissipation

• Per channel: 0.20 W

• Per module: 6.65 W

• Backplane Current Load

• 0.05 A @ 5 V DC

• 103 mA @ 5 V DC (alternate spec)

• 0 mA @ 24 V DC

• Step Response 100 ms input, 2.5 ms output

• Shock Rating 30 G

• I/O Connections 1746-HT and 1746-HCA

Application Scenarios

• General-purpose DC input monitoring in SLC 500 systems

• Machine-level automation requiring high-density input modules

• Distributed control systems with compact input requirements

FAQ

Q: How many input points does the 1746-IB32 support?  A: Thirty-two DC input channels.

Q: What is the operating voltage range?  A: 15–30 V DC at 50 °C, and 15–26.4 V DC at 60 °C.

Q: Which I/O connections are supported?  A: Compatible with 1746-HT and 1746-HCA connectors.

Comparable Models

• 1746-IB32: 32-point DC input module (this model)

• 1746-OB32: 32-point DC output module

• 1746-IB16: 16-point DC input module