10.F4.C1D-4A02 KEB
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The KEB 10.F4.C1D-4A02 frequency inverter is part of the F4 Combivert Frequency Inverters series and is rated for 2.2 kW of motor power with a 3-phase input. It features an apparent power of 4 kVA, supports a nominal input current of 6.4 A, and includes a braking transistor accessory. The inverter has an IP20 protective system and a maximum heat sink temperature of 85 °C.
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Product Description:
The 10.F4.C1D-4A02 is a frequency inverter produced by KEB within the F4 Combivert Frequency Inverters series. The unit converts fixed-frequency three-phase mains power into a variable voltage and frequency output, allowing industrial motors to accelerate, run, and decelerate under precise speed control. By varying output frequency and voltage together, it helps keep motor response smooth during starts, speed changes, and controlled stops. It is used in automation cells where conveyor drives, pumps, or tooling spindles need flexible torque delivery without mechanical speed changers, and it coordinates those actions with commands issued from a supervisory PLC.
The inverter handles an apparent power of 4 kVA, indicating the maximum volt-ampere load that the supply transformer must sustain. It can deliver a rated motor power of 2.2 kW when the connected motor is matched to its output capacity. The nominal input current is 6.4 A, and the output nominal current of 5.8 A sets the continuous line and load conductor sizing. A rated switching frequency of 4 kHz governs the pulse-width-modulated waveform, balancing acoustic noise with semiconductor heating. That switching rate also helps balance motor current control against additional heat in the power semiconductors. The inverter trips on overcurrent at 12.7 A and tolerates short-term demands up to 10.4 A without immediate shutdown.
Under full load, the electronics dissipate 80 W, so cabinet airflow must remove this heat before the heat sink reaches its maximum of 85 °C. Installation wiring uses a line cross section of 2.5 mm² and is protected by a maximum mains fuse of 20 A to limit fault energy. The housing conforms to protection class IP20, giving finger-safe access while requiring placement in a closed panel. Because the enclosure is intended for cabinet installation, the unit should be mounted where airborne debris and incidental contact are limited. A braking transistor is included as an accessory to bleed regenerative energy when the motor decelerates, helping control DC-bus voltage during rapid slowdowns.
