Allen-Bradley 1492-IFM40F-F24-2 1492 Wiring System Fusible Interface Module

Product Description

The 1492-IFM40F-F24-2 is a specialized pre-wired interface module designed to streamline the connectivity between I/O cards and field devices. As a core component of the Allen-Bradley 1492 Digital Wiring System, this unit significantly reduces wiring time and potential errors. This specific model features built-in fuse protection for each circuit, providing a critical layer of safety for high-density control systems.

Equipped with 40-pin connectivity, the 1492-IFM40F-F24-2 (Part Number: 1492-IFM40F-F24-2) is optimized for 24V applications, supporting both AC and DC signals. The fusible architecture allows for individual circuit isolation, ensuring that a single field fault does not compromise the entire I/O rack. The module is housed in a compact, DIN-rail mountable chassis, making it ideal for space-constrained control cabinets.

Technical Specifications

• Product Series: 1492 Digital Wiring System

• Catalog Number: 1492-IFM40F-F24-2

• Wiring Configuration: Fusible Interface (with 24V Status Indicators)

• Nominal Supply Voltage: 10 to 30 V AC/DC

• Current Rating per Circuit: 2.0 Amps maximum

• Module Total Current Capacity: 12 Amps maximum

• I/O Point Density: 40-pin connection interface

• Environmental Operating Range: 0°C to 60°C (32°F to 140°F)

• Humidity Requirements: 5% to 95% (Non-condensing)

• Operating Elevation: Up to 1000 meters without derating

• Physical Weight: 0.45 kg (1.00 lb)

• Mounting Method: Standard 35mm DIN rail

Application and System Maintenance

This interface module is primarily utilized in high-density PLC architectures, such as ControlLogix or CompactLogix systems, where rapid deployment and circuit-level protection are required. The integrated fuse holders accept standard small-dimension fuses, allowing maintenance personnel to quickly identify and replace blown components via the onboard status LEDs.

Technical FAQ

What is the advantage of using a 40-pin IFM over traditional terminal blocks?The 1492-IFM40F-F24-2 replaces individual point-to-point wiring with a single master cable connection to the PLC. This not only reduces installation labor by up to 75% but also integrates fusing and status indication into a single, organized footprint.

Does this module support both sinking and sourcing I/O?Yes, the universal AC/DC voltage rating allows the 1492-IFM40F-F24-2 to be applied in various signal polarities, provided the voltage remains within the 10-30V threshold.