Belimo FSLF120-S-FC Fire Smoke Damper Actuator in-lb Spring Return - 30 120V

The Belimo FSLF120-S-FC is a UL-listed fire and smoke damper actuator designed for life safety applications in commercial HVAC systems. This spring return actuator provides reliable fail-safe operation during fire or smoke events, automatically closing dampers when power is lost.

Key Specifications:

• Torque rating: 30 in-lb (3.4 Nm) for positive damper closure
• Power supply: 120V AC, 60 Hz
• Control: On/Off (two-position)
• Spring return for fail-safe operation
• Dual auxiliary switches: 2 SPST for status indication
• Factory-mounted 1-meter (3.3 ft) cable for quick installation
• Timing: Approximately 75 seconds running time
• UL 2043 and UL 873 listed for fire/smoke applications

This actuator is engineered for demanding fire and smoke damper applications where code compliance and safety are critical. The spring return mechanism ensures dampers close automatically during power failures or emergency conditions. Auxiliary switches provide positive position feedback for building automation systems and fire alarm panels.