Additional specifications and description
speed controller for AC fans
This is a controller for three-phase
400 V motors. Via the built-in switch, you can select one of the 5
speeds . Autotransformer technology
is used to reduce the
motor voltage and the fan speed in 5 steps. This technology is very
reliable and robust. It generates a motor voltage with perfect sinusoidal
shape. This results in exceptionally quiet motor operation
and extended service life. A
special impregnated coating reduces the electrical noise from the
This fan speed controller can
monitor thermal motor
contacts (TK or thermal contacts measure
temperature in the motor windings). In case of
the TK monitoring function will disable
the motor to
prevent motor damage. If the motor is not equipped with TK contacts, both TK
terminals of the controller must be bridged to simulate normal motor
fan speed controller
doesn't require configuration.
Once installed, it can be used.
output (1x 230 VAC) is active when the motor is
enabled. It can be used to control an external
run-indicator, a damper, etc.
when the fan is deactivated, the dampers is closed. When the fan is active,
the damper is open.
enclosure is made of high-quality
enclosure can be surface mounted and offers an IP54
protection against ingress of dirt, dust and