Overview
The Belimo SY9-120MFT is a heavy-duty, non-fail-safe electric valve actuator built for demanding high-torque HVAC applications. Equipped with Multi-Function Technology (MFT), it enables flexible, programmable modulating control of large industrial butterfly valves.
Features
- High torque performance with programmable Multi-Function Technology (MFT)
- Two integrated SPDT auxiliary switches for position signaling
- NEMA 4X and IP66/IP67 enclosure for outdoor and washdown suitability
- Hand wheel manual override for emergency manual operation
- Dependable non-fail-safe rotary operation
Specifications
- Nominal Voltage: AC 120 V
- Control Type: MFT / Programmable
- Auxiliary Switches: 2 x SPDT
- Angle of Rotation: 90°
- Running Time: 65 s
- Degree of Protection: IP66/IP67, NEMA 4X
- Actuator Type: Non fail-safe
Applications
- Large commercial and industrial butterfly valve actuation
- Cooling tower and chiller bypass control
- High-capacity water treatment and HVAC fluid distribution systems


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