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SKU
SY4-230-MF-T
SY4-230-MF-T - Belimo, Rotary actuator, 400 Nm, AC 230 V, MFT, 2...10 V, 16 s, 2x SPDT, IP67, F10/F12, Terminals
£2,418.62
£2,015.52
On request
Next Supplier Stock Update: 17/10/2026
Manuals & Datasheets
| DATA-SHEET |
 |
| Product type | Actuator |
| IP rating | IP67 |
| Input Signal | 0..10 Vdc, MFT, Proportional/MFT |
| Manufacturer | Belimo |
| Power Supply | 230Vac, 1Ph, 50Hz |
| Torque | 400 N |
| Running time | Quick (2.5 to 20 sec) |
| Actuator type | Rotary |
SY4-230-MF-T - Rotary actuator butterfly valve 400 Nm, 18 s, 90°
• AC / DC 24 V, modulating, MF, 2 x SPDT
• IP 67, Manual override with handwheel
• Control DC 0...10 V
• Operating range DC 0.5...10 V
• Position feedback DC 0.5...10 V
• Position indicator Yes
• Auxiliary switch 2 integral
• Connection with terminals
• with square adapter, screw set F10 f.butterfly valves D6.
Features
- Mode of operation The actuator is controlled with a standard modulating signal and travels to the position defined by the control signal. Measuring voltage U serves for the electrical display of the actuator position 0 ... 100% and as slave control signal for other actuators.
- Parameterisable actuators Input and output signals and other parameters can be altered with the BELIMO Service Tool, MFT-P.
- Simple direct mounting Simple direct mounting on the butterfly valve. The mounting position in relation to the butterfly valve can be selected in 90°<) steps.
- Manual override The butterfly valve can be closed (turn clockwise) and opened (turn anticlockwise) with the handwheel. The handwheel does not move while the motor is running.
- Internal heating An internal heater prevents condensation buildup.
- High functional reliability Mechanical stops limit the actuator to –2° and 92°<) . The internal limit switches interrupt the voltage supply to the motor. In addition, a motor thermostat provides overload protection because at 135°C it interrupts the voltage supply.
- Combination butterfly valve actuators Refer to the butterfly valve documentation for suitable butterfly valves, their permitted media temperatures and closing pressures.
• Electrical data
• Nominal voltage AC 24 V, 50/60 Hz
• Nominal voltage range AC 207 ... 253 V
• Power consumption See «Overview of types»
• Current consumption See «Overview of types»
• Auxiliary switches 2 x SPDT, 5 A, AC 230 V Switching points: 3°<) and 87°<)
• Connection Terminals, 2 x 1.5 mm2 or 1 x 2.5 mm2
• Parallel operation Supply voltage yes operation Controller signals yes
• Functional data Torque (nominal torque) See «Overview of types
• Control Control signal Y DC 0 … 10 V, input impedance 100 ka Operating range DC 0.5 ... 10 V
• Control Control signal Y 4 mA ... 20 mA
• Position feedback (measuring voltage U5)DC 0 ... 10 V, max. 0.5 mA DC 2 ... 10 V, max. 0.5 mA 4 mA ... 20 mA
• Position accuracy ±5% absolute
• Manual override Temporary with handwheel (not revolving)
• Angle of rotation 90°<) (internal limit switch)
• Angle of rotation MAX (maximum position) =100%, MIN (minimum position)=0%, ZS (intermediate position)=50%
• Running time See «Overview of types»
• Duty cycle 75% (e.g. 15 s / 5 s)
• Sound power level Max. 70 dB (A)
• Position indication Mechanical (integrated)
• Safety Protection class I Protective earth
• Degree of protection IP67
• EMC CE according to 2004/08/EC Low-voltage directive CE according to 2006/95/EC
• Certification Tested in accordance with EN 6000-6-2 : 2005 EN 6000-6-4 : 2007
• Mode of operation Type 1
• Control pollution degree 4
• Ambient temperature –20 ... +65°C
• Medium temperature –20° ... +120°C (in the butterfly valve) Max. 130°C / 1 h
• Non-operating temperature –30 ... +80°C
• Ambient humidity 95% r.h., non-condensating
• Maintenance Maintenance-free
• Mechanical data Connection flange See «Overview of types»
• Housing material Cast aluminium
• Dimensions See «Dimensions» on page 4
• Weight See «Overview of types»
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