SR24A-MP-5 Rotary actuator, 20 Nm, AC/DC 24 V, 90s - Belimo | ideal for rotary valves and butterfly valves

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The Belimo SR24A-MP-5 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 SR24A-MP-5 is 20 Nm.

This Belimo Actuator requests a power supply of 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.

SR24A-MP-5 Rotary actuator, 20 Nm, AC/DC 24 V, 90s

• AC/DC 24 V, modulating, MP-Bus
• Motor running time 90 s adjustable
• Operating range DC 2...10 V, 0...32 V adjustable
• Position feedback DC 2...10 V, 0...10 V, adjustable
• Manual override temporary, permanent
• Connection cable PVC 1 m

Principle of operation: Conventional operation: The actuator is connected with a standard modulating signal of DC 0 ... 10V and travels to the position defined by the positioning signal. The measuring voltage U serves for the electrical display of the actuator 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 travels 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. Input and output signals and other parameters can be altered with the PC-Tool MFT-P or with the Service tool ZTH EU.

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

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

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. Factory setting: Y2 (counter-clockwise rotation).

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 pressing the gearbox disengagement button is configured. 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 3.5 W
• Power consumption in rest position 1.25 W
• Power consumption for wire sizing 6 VA
• Connection supply / control Cable 1 m, 4 x 0.75 mm²
• Parallel operation Yes (note the performance data)

Functional data:

• Torque motor Min. 20 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) and Modulating (DC 0...32 V)
• Operating range Y DC 2...10 V
• Operating range Y variable Start point DC 0.5...30 V and 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 and End point DC 2.5...10 V
• Position accuracy ±5%
• Manual override Gear disengagement with push-button, can be locked
• Running time motor 90 s / 90°
• Motor running time variable 90...350 s
• 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% and ZS (intermediate position, AC only) = 50%
• Override control variable MAX = (MIN + 33%)...100%, MIN = 0%...(MAX – 33%) and ZS = MIN...MAX
• Sound power level motor 45 dB(A)
• Position indication Mechanically, integrated, two-section

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
• 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: Approx. 1.2 kg