The Belimo GM24A-SR Modulating Damper Actuator is designed for precise adjustment of dampers in technical building installations, suitable for air damper sizes up to approximately 8 m². With a robust torque motor and efficient power consumption, it ensures reliable performance for HVAC systems. Click here for the technical data PDF Electrical Data: - Nominal Voltage: AC/DC 24 V - Nominal Voltage Frequency: 50/60 Hz - Nominal Voltage Range: AC 19.2...28.8 V / DC 19.2...28.8 V - Power Consumption in Operation: 4.5 W - Power Consumption in Rest Position: 2 W - Power Consumption for Wire Sizing: 6.5 VA - Connection Supply / Control: Cable 1 m, 4x 0.75 mm² - Parallel Operation: Yes (note the performance data) Functional Data: - Torque Motor: 40 Nm - Operating Range Y: 2...10 V - Input Impedance: 100 kΩ - Position Feedback U: 2...10 V - Position Feedback U Note: Max. 1 mA - Position Accuracy: ±5% - Direction of Motion Motor: Selectable with switch 0/1 - Direction of Motion Note: Y = 0 V: At switch position 0 (ccw rotation) / 1 (cw rotation) - Manual Override: With push-button, can be locked - Angle of Rotation: Max. 95° - Angle of Rotation Note: Can be limited on both sides with adjustable mechanical end stops - Running Time Motor: 150 s / 90° - Sound Power Level, Motor: 45 dB(A) - Mechanical Interface: Universal shaft clamp reversible 12...26.7 mm - Position Indication: Mechanical, pluggable Safety Data: - Protection Class IEC/EN: III, Safety Extra-Low Voltage (SELV) - Power Source UL: Class 2 Supply - Degree of Protection IEC/EN: IP54 - Degree of Protection NEMA/UL: NEMA 2 - Enclosure UL: Enclosure Type 2 - EMC: CE according to 2014/30/EU - Certification IEC/EN: IEC/EN 60730-1 and IEC/EN 60730-2-14 Environmental Data: - UL Approval: cULus according to UL60730-1A, UL60730-2-14 and CAN/CSA E60730-1 - Hygiene Test: According to VDI 6022 Part 1 / SWKI VA 104-01, cleanable and disinfectable, low emission - Type of Action: Type 1 - Rated Impulse Voltage Supply / Control: 0.8 kV - Pollution Degree: 3 - Ambient Humidity Max.: 95% RH, non-condensing - Ambient Temperature: -30...50°C [-22...122°F] - Storage Temperature: -40...80°C [-40...176°F] - Servicing: Maintenance-free - Weight: 1.6 kg Operating Mode: The actuator connects with a standard control signal of 0...10 V and drives to the position defined by the control signal. Measuring voltage U serves for the electrical display of the damper position 0...100% and as control signal for other actuators. Simple Direct Mounting: Direct mounting on the damper shaft with a universal shaft clamp, equipped with an anti-rotation device to prevent rotation. Manual Override: Possible with push-button (gear train disengaged while pressed or locked). Adjustable Angle of Rotation: Mechanical end stops allow for adjustable angle. High Functional Reliability: Overload protection with no need for limit switches, automatically stops when end stop is reached. Electrical Accessories: - Auxiliary switch 1x SPDT add-on S1A - Auxiliary switch 2x SPDT add-on S2A - Feedback potentiometers (140 Ω, 1 kΩ, 10 kΩ) - Signal converter voltage/current Z-UIC - Positioners for various mounting options (SGA24, SGE24, SGF24, CRP24-B1) Mechanical Accessories: - Actuator arm for standard shaft clamp AH-GMA - Ball joint suitable for damper crank arm KH8 / KH10 KG10A - Damper crank arm KH10 - Anti-rotation mechanism Z-ARS230 - Mounting kit for linkage operation ZG-GMA - Baseplate extension for GM..A to GM.. Z-GMA - Position indicator Z-PI For more information and to explore our range of Belimo products, visit our website at https://www.ecospares.co.uk/collections/belimo. If you need any assistance, please get in touch with us on 01772 284 626.
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