Overview
The Allen-Bradley 1492-IFM40F-FS24-2 is a 40-point isolated fusible digital interface module designed for industrial control applications. Rated at 24V AC/DC with integrated 5×20mm fuse clips, this module delivers isolated signal routing and built-in overcurrent protection across two isolated groups. It features blown fuse LED indicators for easy fault diagnostics and mounts directly to standard DIN rail, making it a drop-in solution for existing automation panels.
Key Features
- 40-point digital I/O capacity with isolated fusible design
- Dual isolated groups for independent circuit protection
- 24V AC/DC rated operation with wide voltage tolerance
- 5×20mm fuse clip format with LED blown-fuse indicators
- Extra output terminals for flexible wiring arrangements
- DIN rail mountable for compact panel integration
Technical Specifications
- Part Number: 1492-IFM40F-FS24-2
- Manufacturer: Allen-Bradley / Rockwell Automation
- Module Type: Digital Interface Module (IFM), Isolated Fusible
- Point Count: 40 points
- Voltage Rating: 24V AC/DC
- Fuse Type: 5×20mm fuse clips (fuses not included)
- Blown Fuse Indicators: LED indicators
- Isolated Groups: 2 isolated groups
- Wire Size: 22–12 AWG
- Mounting: DIN rail mount
- Connection Type: Fixed terminal block
- Certification: Eurasian Economic Community certified
- Country of Origin: Mexico
Typical Applications
This interface module is ideal for digital signal isolation and protection in CompactLogix, ControlLogix, and industrial panel environments. Common uses include:
- Machine operator pushbutton and selector switch isolation
- Solenoid valve output circuits with automatic overcurrent shutdown
- Remote I/O protection in distributed automation systems
- Safe isolation of 24V DC sensor networks from PLC inputs
- Field-wired motor starter interlock circuits
Compatibility & Replacements
The 1492-IFM40F-FS24-2 integrates directly into Allen-Bradley CompactLogixâ„¢ and ControlLogixâ„¢ systems via 1492 family interface modules. It is compatible with Studio 5000 Logix Designer programming environments. As an OEM isolated interface module, direct drop-in replacements are limited to the 1492 fusible series; consult your system documentation or contact Rockwell Automation for alternative 40-point isolated modules in your automation architecture.








