Functional Devices RIBMNLB-2 AHU Fan Safety Alarm Logic Board 24V AC/DC Track Mount

The Functional Devices RIBMNLB-2 is a versatile AHU (Air Handling Unit) fan safety alarm and general purpose logic circuit designed for HVAC control and monitoring applications. This track-mountable control board provides reliable safety interlocking and alarm functionality for air handler systems.

Key Features:

• 24 VAC/DC power input for flexible installation compatibility
• Dual alarm inputs with normally closed (N/C) contact outputs for safety monitoring
• Compact 2.75-inch track mount design for easy DIN rail installation
• General purpose logic circuit functionality for custom control applications
• Ideal for fan proving, airflow monitoring, and interlock safety systems
• Suitable for commercial HVAC air handling unit applications

This control module is commonly used to monitor fan operation status and provide safety shutdowns when abnormal conditions are detected. The normally closed outputs ensure fail-safe operation, making it an essential component for code-compliant HVAC installations requiring fan proving and safety interlocks.