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EU declaration conformity
Variable fan speed controller 1,5 A |From Low to High
Product description
MTY variable speed controllers by Sentera: Designed for single-phase voltage-controllable motors (up to 1.5A).
Utilizes phase angle control (Triac technology) to vary motor voltage and regulate speed from low to high.
The minimum speed can be adjusted via an internal trimmer.
All models have an extra unregulated 230VAC output
Versatile enclosure for IP44 inset or IP54 surface mounting.
Various applications, including ceiling fans, bathroom exhaust fans, and extraction fans
Additional specifications and description
Why control fan speed
Fan speed control has a range of advantages: running a fan slower reduces the noise it emits, running a fan slower can reduce the power it consumes, running a fan slower increases its reliability and service life.
If you are looking for simplified fan speed regulation, the MTY is what you need! Via its rotary knob the fan speed can be set from low to high by turning it clockwise.
The OFF position
Despite being a simplified fan speed control solution, the MTY series feature an OFF position - turning the knob anticlockwise stops the motor. If necessary, the OFF position can be deactivated. In this case, the motor will run when the power supply is present. As standard, the supply voltage to the device is connected via terminals ↑ and N. To disable the OFF position, you need to connect the supply voltage via the terminals intended for the unregulated output, namely ↓ and N.
The unregulated output
The device features an extra unregulated output which is active when the motor is enabled. It is called so because it is either ON (230 Volt) or OFF (0 Volt).
If the supply voltage is connected to ↑ and N, the unregulated output is active while the motor is in operation. The unregulated output is used to control external devices such as dampers, relays, run indicators, etc. If you connect the supply voltage as standard and as advised by the relevant documentation, the unregulated output of your controller will be active when the motor is enabled. This means that when the fan stops, the connected external device will be disabled – the damper will be closed or the run indicator will go out. While the fan is working, the damper will remain open and the indication light will be on. The maximum current is 2 A.
Minimum speed trimmer
Moreover, The MTY also features an internal trimmer (marked with MIN) for adjusting the minimum fan speed. This controller uses TRIAC technology (phase angle control) to adjust the motor voltage and to control the fan speed. TRIAC cuts parts of the incoming voltage to reduce the overall motor voltage. Thanks to this technology, the fan speed controller operates without excessive humming and buzzing.
However, given the motor type, the motor might produce a little more noise at lower speeds (due to the imperfect sinusoidal shape of the motor voltage). The minimum motor voltage can be adjusted to avoid motor stalling at low speed and optimize fan speed for your ventilation system. That is why this controller features the internal minimum speed trimmer. Reduced fan speed uses significantly less power than maximum operation and can often be employed, typically during unoccupied or low occupancy.
Application
The series controls AC motors via reducing the motor voltage. AC fans run on an alternating current and convert alternating current into mechanical power. The voltage to the motor is reduced via phase angle control. The series is suitable only for voltage controllable motors. Furthermore, you can connect several motors to the controller as long as the current limit is not exceeded. If you are not sure about your motor type, we strongly advise on reading carefully its accompanying documentation or contacting the motor manufacturer.
Inset or surface mounted
The enclosure of the MTY is made of high-quality ASA plastic in cream colour (RAL9010). The material is UV resistant and provides protection for the electronics against impacts, water splashes and dirt. But before all, you can install the MTY in any kind of walls - solid walls, gypsum board or wooden panels. If you choose the inset mounting option, it fits perfectly the standard European box. The protection class is IP44 for inset mounting and IP54 for surface mounting. Naturally, cleaning it is very easy using only a damp cloth.
Fan speed control has a range of advantages: running a fan slower reduces the noise it emits, running a fan slower can reduce the power it consumes, running a fan slower increases its reliability and service life.
If you are looking for simplified fan speed regulation, the MTY is what you need! Via its rotary knob the fan speed can be set from low to high by turning it clockwise.
The OFF position
Despite being a simplified fan speed control solution, the MTY series feature an OFF position - turning the knob anticlockwise stops the motor. If necessary, the OFF position can be deactivated. In this case, the motor will run when the power supply is present. As standard, the supply voltage to the device is connected via terminals ↑ and N. To disable the OFF position, you need to connect the supply voltage via the terminals intended for the unregulated output, namely ↓ and N.
The unregulated output
The device features an extra unregulated output which is active when the motor is enabled. It is called so because it is either ON (230 Volt) or OFF (0 Volt).
If the supply voltage is connected to ↑ and N, the unregulated output is active while the motor is in operation. The unregulated output is used to control external devices such as dampers, relays, run indicators, etc. If you connect the supply voltage as standard and as advised by the relevant documentation, the unregulated output of your controller will be active when the motor is enabled. This means that when the fan stops, the connected external device will be disabled – the damper will be closed or the run indicator will go out. While the fan is working, the damper will remain open and the indication light will be on. The maximum current is 2 A.
Minimum speed trimmer
Moreover, The MTY also features an internal trimmer (marked with MIN) for adjusting the minimum fan speed. This controller uses TRIAC technology (phase angle control) to adjust the motor voltage and to control the fan speed. TRIAC cuts parts of the incoming voltage to reduce the overall motor voltage. Thanks to this technology, the fan speed controller operates without excessive humming and buzzing.
However, given the motor type, the motor might produce a little more noise at lower speeds (due to the imperfect sinusoidal shape of the motor voltage). The minimum motor voltage can be adjusted to avoid motor stalling at low speed and optimize fan speed for your ventilation system. That is why this controller features the internal minimum speed trimmer. Reduced fan speed uses significantly less power than maximum operation and can often be employed, typically during unoccupied or low occupancy.
Application
The series controls AC motors via reducing the motor voltage. AC fans run on an alternating current and convert alternating current into mechanical power. The voltage to the motor is reduced via phase angle control. The series is suitable only for voltage controllable motors. Furthermore, you can connect several motors to the controller as long as the current limit is not exceeded. If you are not sure about your motor type, we strongly advise on reading carefully its accompanying documentation or contacting the motor manufacturer.
Inset or surface mounted
The enclosure of the MTY is made of high-quality ASA plastic in cream colour (RAL9010). The material is UV resistant and provides protection for the electronics against impacts, water splashes and dirt. But before all, you can install the MTY in any kind of walls - solid walls, gypsum board or wooden panels. If you choose the inset mounting option, it fits perfectly the standard European box. The protection class is IP44 for inset mounting and IP54 for surface mounting. Naturally, cleaning it is very easy using only a damp cloth.
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