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Allen-Bradley 1746-IB32 SLC 500 Input Module

1. Product Description

The 1746-IB32 is a 32-point DC input module from Allen-Bradley’s SLC 500 series, designed for industrial automation applications. It provides high-density digital input capabilities, supporting 24V DC signals for reliable sensor and switch interfacing in control systems .

2. Key Features

High-Density Inputs – 32 isolated DC input channels, optimizing control cabinet space .
Wide Voltage Compatibility – Supports 12–24V DC input signals, making it adaptable to various industrial sensors .
Industrial Durability – Features optical isolation and LED status indicators for real-time diagnostics .
Easy Integration – Compatible with SLC 500 controllers (e.g., SLC 5/03, SLC 5/05) and MicroLogix systems .
Modular & Scalable – Fits into 1746 chassis and can be expanded with additional I/O modules .

3. Technical Specifications

Parameter	Specification
Input Type	32-point DC (sinking/sourcing)
Input Voltage Range	12–24V DC
Isolation Voltage	250V AC (channel-to-backplane)
Response Time	≤1ms (ON/OFF)
Power Consumption	5V DC @ 150mA (backplane)
Operating Temp.	0°C to 60°C
Certifications	CE, UL, CSA, GOST

4. Applications

Manufacturing Automation – Machine control, safety interlocks, and conveyor monitoring .
Energy & Power Systems – Substation monitoring and relay status detection .
Water Treatment – Valve and pump control in process automation.
Packaging & Material Handling – High-speed input sensing for production lines .

5. Installation & Precautions

Wiring Compliance – Use shielded cables to minimize electrical noise interference .
Load Matching – Ensure input signals are within 12–24V DC range to prevent damage .
Environmental Limits – Avoid condensation or excessive dust (IP20-rated) .