GRK24A-5 POP Valve Actuator, 40 Nm, AC/DC 24 V, 150 s - Belimo | ideal for rotary valves and butterfly valves

GRK24A-5 POP Valve Actuator, 40 Nm, AC/DC 24 V, 150 s

• 40 Nm, 150 s, 90°
• AC/DC 24 V, Open/Close
• Running time POP 35 s
• IP 54, Manual override temporary
• Connection PVC cable 1m
• with mounted kit BFV

Mode of operation: The actuator moves the valve to the desired operating position at the same time as the integrated capacitors are loaded. Interrupting the supply voltage causes the valve to be moved to the selected emergency setting position (POP) by means of stored electrical energy.

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.

Direct mounting: Simple direct mounting on the rotary valve or butterfly valve with mounting flange. The mounting orientation in relation to the fitting can be selected in 90° steps.

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.

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

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

Rotary knob emergency setting position: The «Emergency setting position» rotary knob can be used to adjust the desired emergency setting position (POP). In the event of an electricity interruption, the actuator will move into the selected emergency setting position, 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 3 W
• Power consumption for wire sizing 21 VA
• Power consumption for wire sizing note Imax 20 A @ 5 ms
• Connection supply / control Cable 1 m, 2 x 0.75 mm²
• Parallel operation Yes (note the performance data)

Functional data:

• Torque motor Min. 40 Nm
• Setting emergency 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°
• Sound power level motor 52 dB(A)
• Sound power level emergency control position 61 dB(A)
• Position indication Mechanica

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: 2.8 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