Ruskin L120-S 120V Spring Return Damper Actuator with Auxiliary Switch 177 in-lb

The Ruskin L120-S is a 120-volt electric damper actuator designed for precise control of HVAC dampers in commercial and industrial applications. This two-position actuator features spring return functionality for fail-safe operation, automatically returning the damper to its default position upon power loss.

Key Features:

• 120V AC power supply for standard electrical systems
• 177 inch-pounds of torque for reliable operation of medium to large dampers
• Two-position control (open/closed) for simple on/off damper applications
• Spring return (S/R) mechanism ensures fail-safe positioning during power interruption
• Integrated auxiliary switch for feedback signals and interlock capabilities
• Durable construction suitable for commercial HVAC environments
• Direct mount design for easy installation on compatible damper shafts

This actuator is ideal for fire/smoke dampers, ventilation control, and other applications requiring dependable two-position damper control with position indication feedback. The auxiliary switch allows integration with building management systems and control panels for monitoring damper status.