Belimo GK24A-1 - rotary actuator for dampers with safety function

Belimo GK24A-1

Rotary actuator with safety function for controlling dampers in stationary heating, ventilation and air-conditioning systems. The capacitors charge during operation; after a power interruption, the stored energy moves the damper to the preset safety position.

Key features and specifications

• Motor torque: 40 Nm; control: Close/Open.
• Nominal voltage: AC/DC 24 V; nominal voltage frequency: 50/60 Hz.
• Power consumption during operation: 11 W; at rest: 3 W; sizing power: 21 VA.
• Motor running time: 150 s / 90°; safety function running time: 35 s / 90°.
• Safety position (POP) adjustable within 0...100% in 10% increments; factory-set power reserve time (PF): 2 s.
• Motor direction selected using switch 0 (counter-clockwise) / 1 (clockwise).
• Rotation angle: max. 95°, with the option of limiting both sides using mechanical stops.
• Manual adjustment by push-button; mechanical position indicator.
• Mechanical connection: reversible universal mounting clamp 12...26.7 mm.
• Power and control connection: 1 m cable, 3x 0.75 mm².
• Degree of protection IEC/EN: IP54; protection class IEC/EN: III, Safety Extra-Low Voltage (SELV).
• Ambient temperature: -30...50°C [-22...122°F].