Belimo SY12-230A-3-T - rotary actuator for butterfly valves

Belimo SY12-230A-3-T

Rotary actuator for butterfly valves, designed for stationary heating, ventilation and air-conditioning installations. The construction is suitable for outdoor applications and features internal heating to limit condensation.

Key technical data

• Torque: 3500 Nm.
• Rated voltage: AC 230 V; frequency: 50/60 Hz; voltage range: AC 207...253 V.
• Control: Close/Open, 3-point.
• Travel time: 76 s / 90°; angle of rotation: 90°.
• Power consumption during operation: 424 W, including internal heating; sizing power: 460 VA.
• 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).
• Degree of protection: IP67; connection flange: F16.
• Manual operation using a handwheel that remains stationary while the motor is running; integrated mechanical position indicator.
• Ambient temperature: -30...65°C; housing material: cast aluminium.

Direct mounting on the butterfly valve allows the orientation to be selected in 90° increments. Internal limit switches cut off the motor power supply; their settings and the mechanical rotation-angle stop must not be changed.