NR24A-SZ - Belimo Modulating rotary actuator, 10 Nm, 90 s, 90°, AC / DC 24 V | ideal for ball valves

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The Belimo NR24A-SZ 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 NR24A-SZ is 10 Nm.

This Belimo Actuator requests a power supply of AC / DC 24 V.

IACS has the best prices on the right Belimo Actuators for your system.

Consult the Belimo custom datasheet above or contact iacs via email for personalised assistance if you have queries about size or installation.

Product features

Mode of operation The actuator is connected with a standard modulating signal of 0...10 V and drives to the position defined by the positioning signal. Measuring voltage U serves for the electrical display of the valve position 0.5...100% and as slave control signal for other actuators.

Simple direct mounting Straightforward direct mounting on the ball valve with only one central screw. The assembly tool is integrated in the plug-in position indication. The mounting orientation in relation to the ball valve can be selected in 90° steps.

Manual override Manual override with push-button possible (the gear is disengaged for as long as the button is pressed or remains locked).

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

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

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 2.5 W
Power consumption in rest position 0.4 W
Power consumption for wire sizing 5 VA
Connection supply / control Cable 1 m, 4 x 0.75 mm²
Parallel operation Yes (note the performance data)

Functional data

Torque motor 10 Nm
Operating range Y 0.5...10 V
Input Impedance 100 kΩ
Position feedback U 0.5...10 V
Position feedback U note Max. 1 mA
Position accuracy ±5%
Manual override with push-button, can be locked
Running time motor 90 s / 90°
Sound power level, motor 35 dB(A)
Position indication Mechanically, pluggable

Safety

Protection class IEC/EN III Safety Extra-Low Voltage (SELV)
Protection class UL 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
Certification UL cULus according to UL60730-1A, UL60730-2-
14 and CAN/CSA E60730-1:02
Certification UL note The UL marking on the actuator depends on the
production site, the device is UL-compliant in
any case
Mode of operation Type 1
Rated impulse voltage supply / control 0.8 kV
Control pollution degree 3
Ambient temperature -30...50°C
Storage temperature -40...80°C
Ambient humidity Max. 95% r.H., non-condensing
Servicing maintenance-free
Weight: 0.75 kg