Belimo SY4-24-3-T - rotary actuator for dampers

Belimo SY4-24-3-T rotary actuator

Electronic rotary actuator designed for dampers. According to the documentation, the device is designed for stationary heating, ventilation and air conditioning installations.

Key features and parameters

• Motor torque: 400 Nm; rotation angle: 90°.
• Rated voltage: AC/DC 24 V; frequency: 50/60 Hz.
• Control: open/close, 3-point.
• Motor running time: 20 s / 90°.
• Power consumption during operation: 195 W (including heater); power for cable sizing: 226 VA.
• Two integrated auxiliary switches: 2x SPDT, 1x 3° / 1x 87°.
• Power and control connection: 2.5 mm² terminals (2x 1.5 mm² or 1x 2.5 mm² cable).
• Manual adjustment: temporary, using a handwheel that does not rotate while the motor is running.
• Connection flange: F10/F12; IEC/EN protection rating: IP67.
• IEC/EN protection class: I, protective earth (PE).

The actuator has an internal heater to prevent condensation build-up and a mechanical position indicator. The documentation states that it is suitable for outdoor applications and protected against UV radiation, dirt, rain, snow and atmospheric humidity.