Schneider Electric MC-351 Damper/Valve Actuator

The Schneider Electric MC-351 Damper/Valve Actuator is a rugged 2-position ON/OFF electric actuator designed for reliable control of dampers and globe valves. Operating at 24 Volt AC (60 Hz), it delivers 28 watts of power and 220 inch-pounds of torque for confident, precise positioning.

With a 180-degree rotation for full travel, this actuator provides precise end-to-end positioning. The non-spring return design ensures deliberate actuation, while the SPDT auxiliary switch adds flexible signaling and feedback for control systems.

Its die-cast aluminum body and NEMA 1 enclosure offer durable protection in standard HVAC environments, and a wide operating temperature range of -40 to 136 °F makes it suitable for challenging installations. UL and CSA approvals guarantee safety and compliance. The unit uses a simple terminal block connection and is intended for damper and globe valve applications.

• 2-Position ON/OFF, 3-Wire operation
• 24 VAC, 60 Hz, 28 W power rating
• 180° rotation for full travel
• Torque 220 in-lb for strong actuation
• Die-cast aluminum enclosure, NEMA 1
• SPDT auxiliary switch included for signaling
• UL and CSA listed
• Terminal block connection
• Operating temperature -40 to 136 °F
• Applications: dampers and globe valves