The HELI MWS10 transformer speed controller is a versatile electronic accessory specifically designed for controlling fans. With a maximum current of 10 A and an IP54 protection rating, this device is suitable for both indoor and protected outdoor use. The speed controller allows for precise adjustment of fan speed in five levels and can be connected to thermal contacts wired on a terminal board. An integrated triggering device provides additional safety, while an indicator light shows the operating status. In case of malfunctions, it can be reset to the zero position, making it easier to handle. The transformer speed controller is housed in a robust plastic casing and is suitable for ambient temperatures of up to 40 °C.

• Five levels for fan speed control
• Integrated triggering device for additional safety
• Reset after malfunction via zero position
• Switchable voltages from 0 to 230 volts.