SKU
EF24A-MP

EF24A-MP Spring Return Damper Actuator, 30 Nm, AC/DC 24 V, 150 s - Belimo

£688.80 £574.00
On request
Next Supplier Stock Update: 18/04/2026
Free delivery over £30
Manuals & Datasheets
 DATASHEET 
DATASHEET
 
Product typeActuator
IP ratingIP54
Input Signal0..10 Vdc, MP-BUS
ManufacturerBelimo
Power Supply24Vac/Vdc
Torque90 Nm
Running time140 to 150 sec
Actuator typeRotary
Fail SafeSpring Return

At IACS we provide Free Delivery and Next 1-2 day Delivery for all the Belimo Actuators in stock.

The Belimo EF24A-MP is an Actuator used in HVAC applications and air ventilation systems.

The Torque force applied by the EF24A-MP is 90 Nm.

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

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.

EF24A-MP Spring Return Actuator, 30 Nm, AC/DC 24 V, 150 s

  • 95°, AC/DC 24 V, modulating, MP-Bus
  • IP 54, manual override with integrated position stop
  • Running time spring approx. 20 s
  • Operating range DC 2...10 V, 0...32 V adjustable
  • Position feedback DC 2...10 V, 0...10 V adjustable
  • Connection cable FRNC 1 m
  • Spindle driver universal spindle clamp

Mode of operation: The actuator moves the damper to the operating position at the same time as tensioning the return spring. The damper is turned back to the emergency position by spring force when the supply voltage is interrupted. Conventional operation: The actuator is connected with a standard modulating signal of DC 0...10V and drives to the position defined by the positioning signal. Measuring voltage U serves for the electrical display of the damper position 0...100% and as slave control signal for other actuators. Operation on the MP-Bus: The actuator receives its digital positioning signal from the higher level controller via the MP-Bus and drives to the position defined. Connection U serves as communication interface and does not supply an analogue measuring voltage.

Converter for sensors: Connection option for a sensor (passive or active sensor or switching contact). The MP actuator serves as an analogue/digital converter for the transmission of the sensor signal via MP-Bus to the higher level system.

Parameterisable actuators: The factory settings cover the most common applications. Single parameters can be modified with the Belimo Service Tools MFT-P or ZTH EU.

Simple direct mounting: Simple direct mounting on the damper spindle with an universal spindle clamp, supplied with an anti-rotation device to prevent the actuator from rotating.

Spindle stabiliser: The spindle clamp of the spring-return actuator is factory-equipped with an axis stabiliser for the stabilisation of the combination of damper, damper spindle and actuator. This is comprised of two plastic support rings and must be left in place, partially or completely removed, depending on the installation situation and the axis diameter.

Manual override: By using the hand crank the damper can be actuated manually and engaged with the locking switch at any position. Unlocking is carried out manually or automatically by applying the operating voltage.

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. 

Home position: The first time the supply voltage is switched on, i.e. at the time of commissioning, the actuator carries out an adaption, which is when the operating range and position feedback adjust themselves to the mechanical setting range. The actuator then moves into the position defined by the positioning signal.

Adaption and synchronisation: An adaption can be triggered manually by pressing the “Adaption” button or with the PC-Tool. Both mechanical end stops are detected during the adaption (entire setting range). Automatic synchronisation after actuating the hand crank is programmed. The synchronisation is in the home position (0%). The actuator then moves into the position defined by the positioning signal. A range of settings can be adapted using the PC-Tool (see MFT-P documentation)

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 9.5 W
  • Power consumption in rest position 4.5 W
  • Power consumption for wire sizing 16 VA
  • Connection supply / control Cable 1 m, 4 x 0.75 mm²
  • Parallel operation Yes (note the performance data)

Functional data:

  • Torque motor Min. 30 Nm
  • Torque spring return Min. 30 Nm
  • Positioning signal Y DC 0...10 V
  • Positioning signal Y note Input impedance 100 kΩ
  • Control signal Y variable Open-close, 3-point (AC only), Modulating (DC 0...32 V)
  • Operating range Y DC 2...10 V
  • Operating range Y variable Start point DC 0.5...30 V, End point DC 2.5...32 V
  • Position feedback U DC 2...10 V
  • Position feedback U note Max. 0.5 mA
  • Position feedback U variable Start point DC 0.5...8 V, End point DC 2.5...10 V
  • Position accuracy ±5%
  • Direction of motion motor Selectable with switch L / R
  • Direction of motion variable Electronically reversible
  • Direction of motion emergency control function Selectable by mounting L / R
  • Manual override By means of hand crank and locking switch
  • Angle of rotation Max. 95°
  • Angle of rotation note adjustable starting at 33% in 5% steps (with mechanical end stop)
  • Running time motor 150 s / 90°
  • Motor running time variable 60...150 s
  • Running time emergency control position < 20 s / 90°
  • Running time emergency setting position note < 20 s @ -20...50°C / < 60 s @ -30°C
  • Adaption setting range manual (automatic on first power-up)
  • Adaption setting range variable No action, adaption when switched on adaption after pushing the gear disengagement button
  • Override control MAX (maximum position) = 100%, MIN (minimum position) = 0%, ZS (intermediate position, AC only) = 50%
  • Override control variable MAX = (MIN + 32%)...100%, MIN = 0%...(MAX – 32%), ZS = MIN...MAX
  • Sound power level motor 45 dB(A)
  • Sound power level emergency control position
  • Spindle driver Universal spindle clamp 12...26.7 mm
  • Position indication Mechanical
  • Service life Min. 60,000 emergency positions

Safety:

  • Protection class IEC/EN III Safety extra-low voltage
  • Degree of protection IEC/EN IP54
  • EMC CE according to 2004/108/EC
  • Certification IEC/EN IEC/EN 60730-1 and IEC/EN 60730-2-14
  • 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

Weight: 5.2 kg