.webp "Ventilator variable speed drive")
.webp "Vari-fan speed controller")
.webp "Hard start fan speed controller")
.webp "Kick start fan speed controller")
.webp "Ceiling fan speed controller")
EU declaration conformity
Variable fan speed controller 1,5 A | From High to Low
Product description
Motor Compatibility: Designed for voltage-controllable single-phase motors up to 1.5 A.
Adjustable Speed: Offers precise fan speed control from high to low.
OFF Position Deactivation: The OFF position can be deactivated for continuous operation.
Minimum Speed Adjustment: Customize the minimum speed using an internal trimmer.
Versatile Mounting & IP Rating: Supports both IP44 inset and IP54 surface mounting.
Additional Output: Includes an extra unregulated 230 VAC output.
Speed Control Technology: Utilizes TRIAC-based phase angle control to fine-tune motor voltage and regulate speed.
Additional specifications and description
How Does This Controller Manually Regulate Fan Speed?
This residential fan speed controller regulates motor speed from maximum to minimum. It is controlled manually and when the rotary knob is in OFF position, the motor is not active. Turning the knob clockwise starts the motor at the highest speed. When the knob is turned further clockwise, the motor slows down to the minimum speed setting.
What Motor Types Are Compatible and How Does the Controller Function?
The device is intended only for voltage controllable fans / motors, i.e. AC fans. These run on an alternating current and convert alternating current into mechanical power. These controllers reduce the voltage provided to the fans via phase angle control using TRIAC technology. If you are not sure about your motor type, we strongly advise you to read carefully its accompanying documentation or contact the motor manufacturer.
How Is Minimum Motor Speed Adjusted and Optimized?
The minimum motor speed is adjustable via an internal trimmer within the range 20 – 70 % of the supply voltage (Us). As a rule, the minimum motor voltage is adjusted to avoid motor stalling at low speed and optimize fan speed for your ventilation system. What is more, when the motor works at very low revs there is humming and buzzing, which disturbs the building occupants. The trimmer must be adjusted so that the motor does not stop due to mains voltage variations.
How Can the "OFF" Position Be Deactivated for Continuous Operation?
The OFF position can be deactivated by connecting the 230 VAC supply voltage to the unregulated output, i.e. to terminals ↓ and N (intended for the unregulated output). In this case, the motor will run when the power supply is present. If you want to keep the OFF position enabled, connect the supply voltage via terminals ↑ and N, as standard.
What Is the Function and Application of the Unregulated Output?
If the supply voltage is connected to ↑ and N, the unregulated output is active when the motor is enabled. The unregulated output can be used to control external devices. It is intended for use in applications where good regulation or low ripple is not required, such as an LED lamp (as a run indicator), external relays, solenoids, dampers and anything that is ideal for non-critical loads. When the fan stops, the external device is switched off. When the fan is active, the external device is on. Because this output is either ON (230 Volt) or OFF (0 Volt), it is called ‘unregulated output’.
What Fuse Features Does the Controller Offer?
The MTX features two fuses – a working and a spare one. Both of them are placed in the holder of the device itself. No need to look for a fuse in case the working one blows due to overloading its capacity or a short circuit! You can find the right size and type of fuse in the device itself.
Can Multiple Motors Be Connected to This Controller?
You can connect several motors to the controller as long as the current limit is not exceeded. In this case all of them will run at the same speed.
What Are the Enclosure's Material, Durability, and Mounting Features?
The enclosure is made of high-quality ASA plastic. This material is UV resistant; it looks very nice and protects the electronics against ingress of dust, dirt and water and features both inset and surface mounting. The protection class is IP44 for inset mounting and IP54 for surface mounting.
This residential fan speed controller regulates motor speed from maximum to minimum. It is controlled manually and when the rotary knob is in OFF position, the motor is not active. Turning the knob clockwise starts the motor at the highest speed. When the knob is turned further clockwise, the motor slows down to the minimum speed setting.
What Motor Types Are Compatible and How Does the Controller Function?
The device is intended only for voltage controllable fans / motors, i.e. AC fans. These run on an alternating current and convert alternating current into mechanical power. These controllers reduce the voltage provided to the fans via phase angle control using TRIAC technology. If you are not sure about your motor type, we strongly advise you to read carefully its accompanying documentation or contact the motor manufacturer.
How Is Minimum Motor Speed Adjusted and Optimized?
The minimum motor speed is adjustable via an internal trimmer within the range 20 – 70 % of the supply voltage (Us). As a rule, the minimum motor voltage is adjusted to avoid motor stalling at low speed and optimize fan speed for your ventilation system. What is more, when the motor works at very low revs there is humming and buzzing, which disturbs the building occupants. The trimmer must be adjusted so that the motor does not stop due to mains voltage variations.
How Can the "OFF" Position Be Deactivated for Continuous Operation?
The OFF position can be deactivated by connecting the 230 VAC supply voltage to the unregulated output, i.e. to terminals ↓ and N (intended for the unregulated output). In this case, the motor will run when the power supply is present. If you want to keep the OFF position enabled, connect the supply voltage via terminals ↑ and N, as standard.
What Is the Function and Application of the Unregulated Output?
If the supply voltage is connected to ↑ and N, the unregulated output is active when the motor is enabled. The unregulated output can be used to control external devices. It is intended for use in applications where good regulation or low ripple is not required, such as an LED lamp (as a run indicator), external relays, solenoids, dampers and anything that is ideal for non-critical loads. When the fan stops, the external device is switched off. When the fan is active, the external device is on. Because this output is either ON (230 Volt) or OFF (0 Volt), it is called ‘unregulated output’. What Fuse Features Does the Controller Offer?
The MTX features two fuses – a working and a spare one. Both of them are placed in the holder of the device itself. No need to look for a fuse in case the working one blows due to overloading its capacity or a short circuit! You can find the right size and type of fuse in the device itself.
Can Multiple Motors Be Connected to This Controller?
You can connect several motors to the controller as long as the current limit is not exceeded. In this case all of them will run at the same speed.
What Are the Enclosure's Material, Durability, and Mounting Features?
The enclosure is made of high-quality ASA plastic. This material is UV resistant; it looks very nice and protects the electronics against ingress of dust, dirt and water and features both inset and surface mounting. The protection class is IP44 for inset mounting and IP54 for surface mounting.
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