Product Description:

The 07.F4.80C-1220 is a variable-speed frequency inverter manufactured by KEB within the F4 Combivert Frequency Inverters series. The unit converts fixed-frequency mains power into a controllable output that regulates induction motor speed in automated machinery and process equipment. By adjusting the voltage and frequency delivered to the motor, it supports tighter motion control, energy savings, and reduced mechanical stress in conveying, pumping, and general-purpose drive applications.

The inverter is designed for a 230 V AC supply and accepts a single-phase input, simplifying installation on light industrial circuits. It synchronizes with 50/60 Hz utility grids and internally rectifies the input before generating adjustable three-phase output. Under continuous operation, the power stage delivers a nominal 4.0 A to the motor, equal to 1.6 kVA of apparent power at rated voltage. Output frequency can be varied up to 409.58 Hz, allowing motors to run above nameplate speed when application torque permits. A 2.5 mm² supply cross section is specified for the incoming conductors to limit thermal rise, and the control logic permits modulation rates that match the selected switching frequency without excessive semiconductor losses.

The recommended line protection is a 20 A mains fuse, coordinated with the inverter’s peak output of 8.0 A for periods under thirty seconds and its continuous dissipation of 50 W during full load. When a rapid torque response is required, the output stage can switch at 8 kHz, a setting that balances acoustic noise and motor heating. Mechanical load should not exceed 0.75 kW of shaft power, matching typical small pumps or conveyors driven by this frame size. The electronics sit in an IP20 housing, operate reliably between −10 °C and 45 °C, and can be stored from −25 °C to 70 °C without damage.