hot surface igniter (HSI) power delivery

featuring a robust Coil Class F rating for continuous duty in demanding thermal environments

the switching logic ensures the unit acts as an effective freeze-stat or low-limit safety

Since this is an Open Drip Proof (ODP) motor

Key Benefits for Technicians: High-Temperature Durability: Rated for temperatures up to 1500°F (815°C) to prevent warping or failure in the combustion chamber

Belimo FSAF24A-S Actuator Freon hot surface igniter (HSI) powerThe Belimo FSAF24A S is a high torque fire and smoke damper actuator designed for On Off control in strictly regulated life safety applications. Engineered as the direct FSAF24 S replacement, this 24V spring return actuator provides 180 in lb of torque to ensure fail safe closure of dampers during power loss or fire alarm triggers. It features integrated dual auxiliary switches for precise end position feedback to the fire alarm control panel or BMS.