BELIMO SY4-110 SY Series Non-Spring Return, On/Off Industrial Actuator, 3560 lb-in - 120 VAC

Belimo’s SY series electric actuators have been designed to mate with our HD(U), Grooved and SHP… series butterfly valves and other quarter turn valve applications.

The patented gear drive mechanism provides for efficient, smooth operation while allowing easy manual override at any time. Drawing upon years of experience in the actuation industry, we have incorporated the most desirable features into the SY product range.

All units have NEMA 4X ratings, easily visible position indicators, international standard ISO5211 mounting systems, internal thermal motor overload protection, heater, dual auxiliary Form C switches, and easily accessible wiring termination points. Wiring diagrams, included in all printed documentation, are also affixed to the outside of the housing on the permanently attached product label.

The SY actuators are NEMA 4X rated and designed to meet the needs of HVAC and Commercial applications. Offered on Belimo standard and high performance valve series, these actuators are available for on/off and modulating applications.

• Hand Wheel Override
• Electrical connection: 1/2" conduit connector, screw terminals
• Motor protection: H Class insulation (SY-1)
  F Class (SY-2…12)
• Gear train: high alloy steel gear sets, self locking
• Operating range: (SY…-110) on/off, floating point (SY...120MFT) 2-10 VDC, 4-20mA, 0-10 VDC
• Sensitivity: (SY…120MFT) 0.4mA/200mV
• Reversal hysteresis: (SY…120MFT) 1.0mA/500mV
• Feedback: (SY…120MFT) 2-10 VDC
• Angle of rotation: 90°
• Direction of rotation: reversible
• Position indication: top mounted domed indicator
• Internal humidity control: resistive heating element
• Auxiliary switches: (2) SPDT, 5A 250 VAC factory set for 5° and 85° change of state
• Ambient temperature: -22°F to +150°F [-30°C to +65°C]
• Humidity range: up to 95%
• Housing type: IP67, NEMA 4X
• Housing material: die cast aluminum alloy
• Agency listings: ISO, CE, cCSAus