GK24G-SR POP Damper Actuator, 40 Nm, AC/DC 24 V, 150 s - Belimo

GK24G-SR POP Damper Actuator, 40 Nm, AC/DC 24 V, 150 s

• 40 Nm, 150 s / 95°, 
• AC/DC 24 V, modulating
• Running time POP 35 s
• IP 66 NEMA4, Manual override with push-button
• Control DC 0...10 V, DC 2...10 V
• Operating range DC 2...10 V
• Position feedback DC 2...10 V
• Connection cable FRNC 1 m
• Direction of rotation selectable
• Spindle driver universal spindle clamp
• Sound power level max. 52 dB (A)
• with POP safety position adjustable

Fields of application: The actuator is particularly suitable for utilisation in outdoor applications and is protected against the following weather conditions: - UV radiation - rain / snow - dirt / dust - Humidity - Changing atmosphere / frequent and severe temperature fluctuations (recommendation: use the actuator with integrated factory-installed heating which can be ordered separately to prevent internal condensation)

Mode of operation: The actuator moves the damper to the desired operating position at the same time as the integrated capacitors are charged. Interrupting the supply voltage causes the damper to be rotated back into the emergency setting position (POP) by means of stored electrical energy. The actuator is connected with a standard modulating signal of DC 0...10V and drives to the position defined by the positioning signal. Measuring voltage U serves for the electrical display of the damper position 0...100% and as slave control signal for other actuators.

Pre-charging time (start up): The capacitor actuators require a pre-charging time. This time is used for charging the capacitors up to a usable voltage level. This ensures that, in the event of an electricity interruption, the actuator can move at any time from its current position into the preset emergency setting position (POP). The duration of the pre-charging time depends mainly on how long the power was interrupted.

Delivery condition (capacitors): The actuator is completely discharged after delivery from the factory, which is why the actuator requires approximately 20 s pre-charging time before initial commissioning in order to bring the capacitors up to the required voltage level.

Simple direct mounting: Simple direct mounting on the damper spindle with an universal spindle clamp, supplied with an anti-rotation device to prevent the actuator from rotating.

Manual override: Manual control with push-button possible - temporary. The gear is disengaged and the actuator decoupled for as long as the button is pressed. The housing cover must be removed for manual override.

High functional reliability: The actuator is overload protected, requires no limit switches and automatically stops when the end stop is reached.

Adjustable angle of rotation: Adjustable angle of rotation with mechanical end stops. 

Direction of rotation switch: When actuated, the direction of rotation switch changes the running direction in normal operation. The direction of rotation switch has no influence on the emergency setting position (POP) which has been set.

Emergency setting position (POP) rotary knob: The rotary knob «Emergency setting position» can be used to adjust the desired emergency setting position (POP) between 0 and 100% in 10% increments. The rotary knob always refers to an angle of rotation range of 95° and does not take into account any retroactively adjusted end stops. In the event of an electricity interruption, the actuator will move into the selected emergency setting position (POP), taking into account the bridging time (PF) of 2 s which is set ex-works.

Electrical data:

• Nominal voltage AC/DC 24 V
• Nominal voltage frequency 50/60 Hz
• Nominal voltage range AC 19.2...28.8 V / DC 21.6...28.8 V
• Power consumption in operation 11 W
• Power consumption in rest position 3 W
• Power consumption for wire sizing 21 VA
• Connection supply / control Cable 1 m, 4 x 0.75 mm² (halogen-free)
• Parallel operation Yes (note the performance data)

Functional data:

• Torque motor Min. 40 Nm
• Positioning signal Y DC 0...10 V
• Positioning signal Y note Input impedance 100 kΩ
• Operating range Y DC 2...10 V
• Position feedback U DC 2...10 V
• Position feedback U note Max. 0.5 mA
• Setting emergency setting position (POP) 0...100%, adjustable in increments of 10% (POP rotary knob on 0 corresponds to left end stop)
• Bridging time (PF) 2 s
• 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)
• Direction of motion emergency control function Selectable with switch 0...100%
• Manual override Gear disengagement with push-button (under protective housing)
• 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°
• Running time emergency control position 35 s / 90°
• Running time emergency setting position note < 35 s @ 0...50°C
• Sound power level motor 52 dB(A)
• Sound power level emergency control position 61 dB(A)
• Spindle driver Universal spindle clamp 14...26.7 mm
• Position indication Mechanical

Safety:

• Protection class IEC/EN III Safety extra-low voltage
• Protection class UL UL Class 2 Supply
• Degree of protection IEC/EN IP66
• Degree of protection NEMA/UL NEMA 4, UL Enclosure Type 4
• EMC CE according to 2004/108/EC
• Certification IEC/EN IEC/EN 60730-1 and IEC/EN 60730-2-14
• Certification UL cULus according to UL 60730-1A, UL 60730-2-14 and CAN/CSA E60730-1:02
• Mode of operation Type 1.AA
• Rated impulse voltage supply / control 0.8 kV
• Control pollution degree 4
• Ambient temperature -30...50°C
• Ambient temperature note -40...50°C for actuator with integrated heating
• Non-operating temperature -40...80°C
• Ambient humidity 100% r.h.
• Maintenance Maintenance-free

Weight: 4.5 kg

Terms Abbreviations: POP = Power off position / emergency setting position PF = Power fail delay time / bridging time