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NRF230A-O - This has been Phased Out and replaced by the NRFA-O

On request

NRF230A-O - This has been Phased Out and replaced by the NRFA-O

•    AC 230 V, Open/Close
•    IP 54, Manual override with integrated position stop
•    Running time spring 20 s
•    Connection cable length = 1 m
•    Emergency control openYES
•    with mounting kit for RKH mounted 

More Information


  • Mode of operation The actuator moves the ball valve to the operating position at the same time as tensioning the return spring. The ball valve is turned back to the safety position by spring force if the supply voltage is interrupted.

  • Simple direct mounting Straightforward direct mounting on the ball valve with only one screw. The mounting position in relation to the ball valve can be selected in 90° steps.

  • Manual override Manual operation of the valve with the hand crank, locking in any position with the interlocking switch. Unlocking is manual or automatic by applying the operating voltage.

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

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

  • Combination valve actuators Refer to the valve documentation for suitable valves, their permitted media temperatures and closing pressures.
Manuals & Datasheets
Technical Information

•     Electrical data Nominal voltage AC 230 V, 50/60 Hz
•     Nominal voltage range AC 195 ... 264 V
•     Power consumption In operation 6 W @ nominal torque
•     At rest 2.5 W
•     For wire sizing 9.5 VA
•     ConnectionCable 1 m, 2 x 0.75 mm2
•     Parallel connectionYes (Note performance data for supply
•     Functional dataTorque Motor 10 Nm @ nominal  voltage Spring returnMin. Min. 10 Nm
•     Direction of rotationSpring return– NRF230A Deenergised NC, ball valve closed (A – AB = 0%)Deenergised NO, – NRF230A-O  ball valve open (A – AB = 100%)
•     Manual overrideWith hand crank and interlocking switch
•     Angle of rotationMax. 90°<
•     Running time Motor ≤75 s / 90°Spring return ≤20 s @ –20 ... 50°C / max. 60 s @ –30°C
•     Sound power level Motor ≤45 dB (A) Spring return ≤62 dB (A) 
•     Position indicationMechanical
•     SafetyProtection classII totally insulated
•     Degree of protectionIP54 NEMA 2, UL Enclosure Type 2
•     EMC CE according to 2004/108/EC Low-voltage directive CE according to 2006/95/EC
•    Certification cULus according to UL 60730-1A and UL 60730-2-14and CAN/CSA E60730-1:02 Certified to IEC/EN 60730-1 and IEC/EN 60730-2-14
•     Mode of operationType 1.AA
•     Rated impulse voltage 4 kV
•     Control Pollution Degree3 
•     Ambient temperature range –03 ... +50°C
•     Media temperature +5 ... +100°C (in ball valve)–10°C with stem heating upon request
•     Non-operating temperature–40 ... +80°C 
•     Ambient humidity95% r.h., non-condensating
•    Maintenance Maintenance-free
•    Dimensions / WeightDimensionsSee «Dimensions» on page3
•    Weight Approx. 2 kg (without ball valve)

Manufacturer Belimo