14.F4.C1G-3480 KEB
Wake Industrial LLC is not an authorized distributor of this product.
The KEB 14.F4.C1G-3480 is a frequency inverter from the F4 Combivert Frequency Inverters series. It supports a 3-phase input and operates with a nominal supply voltage of 400 V and a maximum rated motor power of 7.5 kW. The inverter has a nominal input current of 18.1 A, a maximum braking current of 21 A, and features a rated switching frequency of 16 kHz.
Internal Product Review
The 14.F4.C1G-3480 is a KEB F4 Combivert frequency inverter that impresses with stable 3-phase operation at 400 V. Rated motor support of 7.5 kW and a 16 kHz switching frequency give the drive smooth control response and efficient integration in demanding machine applications. An output nominal current of 16.5 A with shielded motor line support up to 100 m makes the unit an excellent choice for stable industrial installations.
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Product Description:
The 14.F4.C1G-3480 belongs to the F4 Combivert Frequency Inverters series manufactured by KEB. This three-phase AC drive is installed in industrial automation panels to modulate induction motor speed, letting production lines, pumps, or fans match process demand instead of running at fixed mains frequency. By adjusting output voltage and frequency in real time, it supports precise torque control and efficient motor operation while integrating with PLC-based control architectures. This type of control is commonly used where a fixed-speed motor would waste energy or create unnecessary mechanical stress during starts and stops.
The inverter connects to a nominal line of 400 V and draws a continuous input of 18.1 A. On the output side, it supplies 16.5 A and transfers up to 11 kVA of apparent power, making it suitable for motors rated at 7.5 kW. A carrier frequency of 16 kHz reduces audible noise and improves current resolution for vector control. Transient events are handled by a 24.8 A short-time current capability, while the overcurrent trip activates at 29.7 A to protect the IGBTs. Continuous operation dissipates 260 W inside the enclosure, so cabinet cooling must remove this heat. With three input phases and a line cross-section of 4 mm², wiring stays consistent with common control-panel practice.
Circuit protection is implemented with a fuse not exceeding 25 A. Regenerative energy during rapid deceleration is routed to an external braking resistor of at least 39 Ω, and the braking path can accept peaks up to 21 A. The inverter supports shielded motor cables up to 100 m, helping maintain EMC performance when the motor is mounted remotely. The stall current limit is 12 A, allowing torque hold during low-speed operation without immediate thermal overload. Using shielded cable also helps limit interference with nearby signal circuits, while the external resistor manages returned energy during braking.
