Built-in inverter motors consist of three-phase asynchronous electric motors with an integrated frequency inverter. The power range is between 0,37 kW and 15,0 kW while the motor frame is from 71 up to 160.
The unit is composed of a high-efficiency 3-phase asynchronous electric motor and a compact frequency inverter placed at the non-drive motor end.
The basic construction is closed, fan cooled and IP 55 enclosure duty. A built-in inverter motor is able to properly run also under heavy overload conditions thanks to a high thermal reserve; the insulating materials are class F. The frame is made of aluminum alloy up to 132 frame size and of cast iron for above sizes.