Product Description:

The 20.F6.A34-3513 inverter is produced by KEB for the F6 Combivert Inverter Drives series and serves as a field-installable power stage in automated machinery. As an AC drive, it converts fixed-frequency mains power into a modulated waveform that lets controllers vary motor speed without mechanical throttling. This capability supports energy-efficient motion in conveyors, extruders, and pump stations found across processing plants.

Inside, the power section accepts a three-phase supply of 3 × 400 VAC and delivers up to 37 kW of motor power at a continuous output of 75 A. A short-term overload capacity of 150% for 60 seconds is available for acceleration or torque peaks, keeping the motor coupled during demanding starts. Pulse-width modulation is switched at 4 kHz, a carrier frequency that balances electromagnetic interference control and thermal loading on the insulated-gate bipolar transistors. The housing measures 277 mm wide, 278 mm deep, and 373 mm high, allowing it to fit standard control enclosures while leaving clearance for bus bars and cable ducts.

Control interfaces are arranged on the front panel for convenient access during installation and operation. The logic board provides 8 digital inputs for start, stop, and preset commands, plus two digital outputs and one relay contact for drive status signaling. For process variables, the unit has 2 analog inputs plus 1 switchable input and a single analog output, while dual encoder channels supply incremental or absolute feedback to the vector control algorithms. Heat is removed through an air-cooled push-through assembly that channels exhaust outside the cabinet, reducing the thermal load within the enclosure. The complete unit weighs 13.6 kg, which supports secure panel mounting and helps limit vibration during high-power operation.