Frequency speed controller VFED

Frequency speed controllers are the energy saving devices which ensure maximum utilization of actuator power with minimum energy consumption.
Combination name Code EAN Availability Price VAT excl. Preis VAT incl. Add to cart
Vents VFED-200-TA 80190 4824032020951 3 pcs. 191.89 € 228.35 €
Vents VFED-400-TA 80191 4824032020968 2022-02-28 255.44 € 303.97 €
Vents VFED-750-TA 80192 4824032020975 4 pcs. 304.68 € 362.57 €
Vents VFED-1100-TA 80193 4824032020982 2022-02-28 387.98 € 461.70 €
Vents VFED-1500-TA 80194 4824032020999 2022-03-25 453.80 € 540.02 €


VFED-…-TA series controllers or inverters are designed for frequency control of three phase asynchronous AC motors. Speed control is effected by means of variation of supplied voltage frequency. Applied for air capacity control of three phase motors. 

Design and control

The controller casing is made of flame-retardant thermoplastic. The assembly transforms voltage of 220 V, 50 Hz supply mains into output impulse voltage with the frequency 3 Hz to 400 Hz. Motor rotor is powered with simple sinusoidal current and has the rotation speed as a function of the supplied voltage frequency. Single phase 220 V, 50 Hz power is supplied to the frequency controller inlet. Three-phase voltage with the frequency up to 400 Hz for asynchronous motor supply is generated at
the controller outlet.

Control by means of external device

Power output variation as a function of the external control signal 0…10 V or 4-20 mA over the range set during the controller adjustment. The external device is connected through RS-232 serial port.


The controller is designed for indoor mounting. Installation shall be performed with respect to the free air circulation for inner circuit cooling. The controller is for vertical installation. Do not install the controller above the heaters and in bad air convection areas.


[V/50 Hz]

electric motor

Frequency output
to the motor

Maximum  current

motor power



VFED 200 TA   1~ 230V 3~ 230V from 3 to 400 1,0A 200w +5…+40 IP 54
VFED 400 TA  1~ 230V 3~ 230V from 3 to 400 2,0A 400W +5…+40 IP 54
VFED 750 TA  1~ 230V 3~ 230V from 3 to 400 3,5A 750W +5…+40 IP 54
VFED 1100 TA 1~ 230V 3~ 230V from 3 to 400 5,5A 1100W +5…+40 IP 54
VFED 1500 TA 1~ 230V 3~ 230V from 3 to 400 7,5A 1500W +5…+40 IP 54