TRF24-S-O - Belimo Spring-return actuator NO | ideal for ball valves

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The Belimo TRF24-S-O is a type of Actuator used in HVAC and ventilation systems.

The force applied by the Torque of the TRF24-S-O is 2.5 Nm.

The power supply requested for this Rotary Actuator is 24Vac/Vdc.

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

TRF24-S-O - Spring-return actuator NO

•    2 Nm, 40...75 s (0...2 Nm), 95°
•    AC / DC 24 V, Open/Close, 1 x SPDT
•    Running time spring 75s
•    Control Open/Close with single-wire contact
•    Auxiliary switch potential-free, 0...100 % adjustable
•    Emergency control closedYES

Features
 

• 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.


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


• Flexible signalization Flexible signalization with adjustable auxiliary switch (0 ... 100%<) ).


• Combination valve/actuators Refer to the valve documentation for suitable valves, their permitted media temperatures and closing pressures.

•    Electrical Nominal voltage AC 24 V, 50/60 Hz DC 24 V
•    Power supply range AC 19.2 ... 28.8 V DC 21.6 ... 28.8 V
•    Power consumption In operation 2.5 W @ nominal torque At rest 1.5 W For wire sizing  5 VA
•    Auxiliary switch 1 x SPDT, 1 mA ... 3 (0,5) A, AC 250 V II (adjustable 0 ... 100%<) )
•    Connection Motor Cable 1 m, 2 x 0.75 mm2 Auxiliary switch Cable 1 m, 3 x 0.75 mm2
•    Parallel connection Yes (note performance data for supply!)
•    Functional data Torque Motor Min. 2 Nm @ nominal voltage Spring return Min. 2 Nm
•    Direction of rotation see «Overview of types»
•    Manual override No
•    Angle of rotation Max. 95°<)
•    Running time Motor <75 s (0 ... 2 Nm) Spring-return 75 s
•    Noise level Motor Max. 50 dB (A) Spring return ~43 dB (A) 
•    Service life Min. 60’000 emergency settings
•    Position indication Mechanical
•    Safety Protection class III extra-low voltage
•    Degree of protection IP42 in all mounting positions
•    EMC CE according to 2004/108/EC  Low-voltage directive CE according to 2006/95/EC
•    Mode of operation Type 1 (to EN 60730-1)
•    Rated impulse voltage 0.8 kV (to EN 60730-1)
•    Control pollution degree 3  (to EN 60730-1)
•    Ambient temperature range –30 ... +50°C
•    Media temperature +5 ... +100°C (in ball valve)
•    Non-operating temperature –40 ... +80°C
•    Ambient humidity range 95% r.H., non-condensating (EN 60730-1)
•    Maintenance Maintenance-free
•    Dimensions / Weight Dimensions See «Dimensions» on page 2
•    Weight Approx. 600 g (without ball valve)