16.F4.C1G-3420 KEB 16 Kilohertz IP20 Frequency Inverter
Wake Industrial LLC is not an authorized distributor of this product.
The 16.F4.C1G-3420 is a frequency inverter made by KEB as part of the F4 Combivert Frequency Inverters series. It supports three input phases, offers a maximum motor power of 15 kW, and has a protection rating of IP20. The inverter features a nominal input current of 36.5 A, a maximum switching frequency of 16 kHz, and weighs 10 kilograms.
Internal Product Review
The 16.F4.C1G-3420 is a KEB F4 Combivert frequency inverter with 3-phase input and 15 kW motor capacity. IP20 protection and 33 A nominal output current make the unit a strong fit for controlled cabinet installations needing dependable drive performance. The 16 kHz maximum switching frequency is a standout advantage for demanding motor applications.
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Product Description:
The 16.F4.C1G-3420 frequency inverter is produced by KEB as part of the F4 Combivert Frequency Inverters series. As an AC drive, it converts fixed-frequency three-phase mains power into a variable voltage and frequency output, enabling closed-loop speed control of induction or synchronous motors in automated machinery. By integrating programmable acceleration ramps and fault monitoring, the unit acts as a decentralized motion node that relieves the central PLC of direct motor control tasks. This arrangement allows the connected motor to start, run, and decelerate in a controlled manner without requiring a separate external speed-control device for basic drive functions.
The drive uses a three-phase electrical supply and draws a nominal input current of 36.5 A, so incoming conductors with a cross section of 10 mm² and a 50 A mains fuse satisfy the stated wiring requirements. Under rated conditions, it delivers 23 kVA of apparent power and an output current of 33 A to a motor rated up to 15 kW, which suits mid-range pumps, conveyors, and similar industrial loads. The internal overcurrent channel trips at 49.5 A during short-time peaks, while normal switching occurs at a carrier frequency of 4 kHz to balance thermal loading and audible noise. Its IP20 enclosure is intended for control-cabinet installation, where the housing is protected from accidental contact and relies on the surrounding panel environment for proper operation.
For applications that place higher priority on motor acoustics, the modulation frequency can be increased to 16 kHz, which can help smooth motor current if thermal limits are observed. During rapid deceleration, regenerated energy is directed to a 42 Ω braking resistor to limit DC-bus overvoltage and maintain stable operation. A shielded motor cable length of up to 100 m is permitted without additional output filters, which supports machines where the motor is mounted at a distance from the cabinet. The inverter is assigned to climatic class 3K3 for typical indoor industrial conditions, and its 10 kg mass supports standard panel mounting without special structural changes.
