14.F4.C00-3480 KEB
Wake Industrial LLC is not an authorized distributor of this product.
The KEB 14.F4.C00-3480 is a frequency inverter from the F4 Combivert Frequency Inverters series that supports three input phases and a nominal supply voltage of 400 V. It provides a maximum rated motor power of 7.5 kW and an output nominal current of 16.5 A. This inverter operates at a rated frequency of 16 kHz and can handle a maximum heat sink temperature of 73 °C.
Internal Product Review
The 14.F4.C00-3480 is a KEB F4 Combivert frequency inverter designed for dependable motor control on 400 V, 3-phase input. Output capability is impressive, with 16.5 A nominal current and 7.5 kW maximum rated motor power supporting steady industrial drive performance. A 16 kHz rated operating frequency further highlights the inverter’s refined response characteristics.
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Product Description:
The 14.F4.C00-3480 is a three-phase AC drive from KEB that belongs to the F4 Combivert Frequency Inverters series. The unit modulates a fixed mains supply to deliver variable voltage and frequency for induction or synchronous motors used in conveyors, pumps, and material-handling cells. By matching motor parameters and monitoring current, it helps maintain torque during acceleration and improves process control within automated machinery.
During operation, the drive accepts a three-phase supply at 400 V and draws a nominal input current of 18.1 A under rated load. For rapid acceleration, it can deliver a short-time current of 24.8 A, while continuous motor output current is limited to 16.5 A on the output side. The inverter produces up to 11 kVA of apparent power, supporting machinery that needs consistent torque across speed changes. Its carrier frequency is factory set to 16 kHz, a value that reduces audible noise but increases switching losses that the internal heat sink must dissipate.
Thermal management is governed by a maximum heat-sink temperature of 73 °C; exceeding this threshold can trigger the over-temperature cutout that stops operation to protect the IGBTs. Under rated switching conditions, the converter dissipates 260 W, so adequate airflow or external fans are needed to keep the assembly within limits. The connected motor may draw up to 7.5 kW, but wiring must use a 4 mm² cross-section and the supply must be protected by a 25 A gG fuse; an overcurrent trip releases at 29.7 A to clear faults before semiconductor damage. At the set carrier frequency, the stall current ceiling is 12 A; if the switching rate is lowered to 8 kHz, the ceiling rises to 19 A, giving extra torque margin during low-speed positioning. All terminations are secured with 1.2 Nm of screw torque to maintain low-impedance connections on the three input phases.
