DRK24A-5 SuperCap Rotary Actuator, 90 Nm, AC/DC 24 V, 150 s - Belimo | ideal for butterfly valves

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The Belimo DRK24A-5 is a kind of Actuator used in HVAC applications and air ventilation systems.

To control the damper, this kind of Actuator turns it by Rotary motion.

The Torque used by the DRK24A-5 is 90 Nm.

This Belimo Actuator requests a power supply of 24Vac/Vdc.

Find the appropriate Belimo Actuator for your system at the greatest price at iacs.

If you have questions about size or installation, consult the Belimo custom datasheet above or send an email to iacs to get personalised guidance.

DRK24A-5 SuperCap Rotary Actuator, 90 Nm, AC/DC 24 V, 150 s

• IP54
• Max. torque 90 Nm
• AC/DC 24 V
• Running time 150 s/ 90º
• Open-close
• Manual override temporary, permanent
• Connection cable length 1 m (PVC)

Mode of operation: The actuator moves the valve to the operating position at the same time as tensioning the return spring. The ball valve is turned back to the selected emergency setting position (POP) by spring force when the supply voltage is interrupted.

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 

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 butterfly valve. The mounting orientation in relation to the butterfly valve can be selected in 90° (angle) increments.

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.

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

Combination valve/actuator: For valves with the following mechanical specifications in accordance with ISO 5211 F05: - Square stem head SW = 14 mm for form-fit coupling of the rotary actuator. - Hole circle d = 50 mm

Emergency setting position (POP) rotary knob: The rotary knob «Emergency setting position» can be used to adjust the desired emergency setting position (POP). In the event of an electricity interruption, the actuator drives into the selected emergency setting position (POP), taking into account the bridging time (PF) of 2 s which was 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 2 W
• Power consumption for wire sizing 20 VA
• Power consumption for wire sizing note Imax 20 A @ 5 ms
• Connection supply / control Cable 1 m, 3 x 0.75 mm²
• Parallel operation No

Functional data:

• Torque motor Max. < 90 Nm (not constant)
• Setting emergency setting position (POP) NC / NO, adjustable (POP rotary button)
• Manual override Gear disengagement with push-button
• 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)
• Position indication Mechanically (integrated)

Safety:

• Protection class IEC/EN III Safety extra-low voltage
• Protection class UL UL Class 2 Supply
• Degree of protection IEC/EN IP54
• Degree of protection NEMA/UL NEMA 2, UL Enclosure Type 2
• 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 3
• Ambient temperature -30...50°C
• Non-operating temperature -40...80°C
• Ambient humidity 95% r.h., non-condensing
• Maintenance Maintenance-free

Mechanical data: Connection flange F05

Weight: 4.1 kg

Terms Abbreviations: POP = Power off position / emergency setting position, CPO = Controlled power off / controlled emergency control function, PF = Power fail delay time / bridging time