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Schneider Electric MP-4 Series MP-481

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MP-481

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The MP-481 from Schneider Electric is designed as an electric proportional actuator specifically for use with dampers and globe valves. With a torque capacity of 220 lb-in and compatibility for proportional control signals from 2 to 12 Vdc, this actuator is suitable for various applications where precise regulation is required.

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Technical specifications for MP-481

ManufacturerSchneider Electric
Product TypeElectric proportional actuator
Product LineMP-4 Series
Part NumberMP-481
Actuator UseDampers, globe valves
Torque Rating220 lb-in (24.9 N-m)
Control SignalProportional signal, 2 to 12 Vdc (compatible with Barber-Colman Microtherms)
Loss of Power ActionNon-Spring Return
Voltage Rating120 Vac
Input Voltage Frequency60 Hz
Current Rating0.6 A
Timing (No Load)Approx. 130 sec
Angle of Rotation180° nominal, adjustable
Auxiliary Switch1 SPDT
HousingDie-cast housing with four 1/2-inch conduit openings
Storage Temperature Range-40°C to 71°C
Operating Temperature Range-40°C to 58°C
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Schneider Electric's MP-481 is an electric proportional actuator primarily employed for handling dampers and globe valves. Weighing in at 11 lbs, it features a torque rating of 220 lb-in (24.9 N-m) ensuring reliable operation under load. This actuator accepts control signals that range from 2 to 12 Vdc, making it compatible with Barber-Colman Microtherm systems.

Operational conditions for the MP-481 include a voltage rating of 120 Vac powered through a 60 Hz frequency. With a current rating of 0.6 A, this actuator operates efficiently while under load. It has a timing specification of approximately 130 seconds without a load, showcasing its capability for quick responses during actuator movements.

The actuator's adjustable angle of rotation is set at a nominal 180 degrees, allowing for tailored positioning based on specific application requirements. Constructed with a die-cast housing, the MP-481 is configured with four 1/2-inch conduit openings for flexible installation options. An auxiliary SPDT switch is integrated within this design, enhancing the actuator's operational versatility.

Designed to perform in various environments, it can function within an operating temperature range of -40°C to 58°C and can withstand storage temperatures from -40°C to 71°C. With its non-spring return loss of power action, it prioritizes consistent performance even during power interruptions.