Schneider Electric MP-481 Damper/Valve Actuator

Schneider Electric MP-481 Damper/Valve Actuator is a high-performance electric, modulating, proportional actuator designed for dampers and globe valves. It provides non-spring-return operation, powered by 120 VAC and drawing up to 0.5 A at 60 Hz. With 220 in-lb torque and 180° rotation, this actuator delivers precise, reliable positioning in HVAC systems, and its rugged NEMA 1 enclosure suits indoor environments.

The MP-481 accepts a 2–12 VDC control signal for fine proportional control and integrates a terminal block connection for straightforward wiring. It also includes an SPDT auxiliary switch for additional control logic. This actuator is UL-listed (Canada/US), CUL, and CE approved, ensuring compliant performance across installation sites. Operating temperature range from -40 to 136°F makes it versatile for various climates.

Ideal for HVAC balancing, air handling units, and control dampers, the MP-481 combines 220 in-lb torque with precise, proportional positioning to optimize energy use, airflow, and occupant comfort.

• 180° rotation for full-range damper/valve positioning
• 120 VAC input, 0.5 A current, 60 Hz operation
• 2–12 VDC control signal for modulating, proportional control
• NEMA 1 enclosure for indoor environments
• SPDT auxiliary switch with terminal-block wiring and UL/cUL/CE approvals