07.F4.C3D-1280 KEB
Wake Industrial LLC is not an authorized distributor of this product.
The KEB 07.F4.C3D-1280 is a frequency inverter from the F4 Combivert Frequency Inverters series. It features a motor power of 0.75 kW, an output nominal current of 4 Amps, and a voltage class of 230 VAC. The inverter operates with a protection class of IP20 and includes both a braking transistor and an integrated filter.
Internal Product Review
The 07.F4.C3D-1280 is a KEB F4 Combivert frequency inverter with a 230 VAC voltage class and 0.75 kW motor power. An included braking transistor and integrated filter support clean installation and dependable deceleration performance. IP20 protection and a 16 kHz switching frequency make the unit a strong choice for compact industrial drive applications.
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Product Description:
The 07.F4.C3D-1280 is an AC frequency inverter produced by KEB as part of the F4 Combivert Frequency Inverters series. The device sits between the line supply and an induction motor, creating a variable output voltage and frequency. It is intended for variable-speed motor control in conveyors, pumps, and other industrial machines, allowing smooth starting, accurate running speed, and controlled deceleration instead of direct-on-line operation. By adjusting motor speed electrically, it can reduce mechanical stress during start-up and help process equipment respond more smoothly to changing load demands.
It operates from a single-phase 230 VAC supply that draws a nominal input current of 8 A. An integrated RFI filter attenuates conducted emissions, and the built-in braking transistor routes surplus energy to an external resistor during deceleration. The control section pulses the IGBT bridge at 16 kHz, which helps keep acoustic noise low while delivering a continuous output of 4 A to the motor. Protection functions include an overcurrent trip that activates at 8.8 A and a short-time current ceiling of 7.2 A for brief acceleration peaks. When dynamic braking is required, the inverter uses a typical resistor value of 180 Ω to absorb regenerated energy. This switching approach also helps balance quiet operation with stable current delivery during normal machine duty.
The unit supports motors up to 0.75 kW, which corresponds to an apparent power rating of 1.6 kVA at the output terminals. The power stage can tolerate a braking current of 7 A, provided the connected resistor is no lower than 56 Ω. For line protection, KEB specifies a maximum fuse of 20 A. The enclosure has an IP20 rating, so the inverter must be installed inside a control cabinet with clear airflow around the heat sink. Cabinet mounting also helps prevent accidental contact while leaving the cooling surfaces exposed to circulating air inside the enclosure.
