Speed controllers, control units and frequency converters for Kaiser Ventilators

With a fan speed controller, the speed value is kept constant or changed as desired. The control intervention takes place either at the point where the torque is generated (motor) or by selectively imposing a decelerating torque (braking). Kaiser's product range includes speed controllers for both centrifugal and axial fans. Speed controllers with the following characteristics are available to meet different customer requirements: transformer-based, infinitely variable by phase-angle controller, by frequency converter, and automatic by means of sensors or 0-10V input control.
Speed controllers or regulators for fans (axial and radial) at a glance:

• Transformer speed controllers
• Stepless speed controllers
• Automatic speed controllers

Electronic fan speed controllers and special equipment

In addition to the speed controllers mentioned above, we carry electronic controllers, electronic temperature controllers, CO2 controllers and mixed gas controllers (tobacco smoke, kitchen fumes, etc.), all stepless. The electronic speed controllers are primarily suitable for light commercial and industrial applications. In addition, we offer other fan speed controllers on request, including those with special voltages, frequencies, humidity sensors and also star-delta switches.
The following electronic speed controllers are available:

• Electronic controllers (stepless) with phase angle control
• Electronic temperature controllers (stepless), CO2 controllers, air quality controllers

On request speed controllers are available with:

• special voltages, special frequencies
• humidity sensors, air quality meters
• Star-delta switches
• frequency converters
• Sine filters for frequency converters

Advice and recommendation: frequency converters for fans

There are now many frequency converters for fans on the market. Since most of our customers prefer certain brands, we do not have any in our direct offer. However, we can advise you if necessary or recommend certain frequency inverters depending on the application. Not all frequency inverters are suitable for small motors. When using them, it is particularly important to ensure that the frequency inverters have a high-quality downstream sine filter. Further useful information on the application can be found under: Service> Technical Notes > Frequency Inverters.
Below you will find our transformer, stepless and automatic speed controllers for fans listed in detail with technical details.

Transformers and speed controllers Kaiser Ventilatoren

The transformer-based speed controllers from Kaiser can be controlled in five stages by means of a switch. The control takes place without components via transformer. There are no EMC problems due to harmonics. The speed controllers supply a three-phase current of 400 V or alternating current of 230 V and have a durable and robust design.