10.F4.S3D-4000 KEB
Wake Industrial LLC is not an authorized distributor of this product.
The KEB 10.F4.S3D-4000 is part of the F4 Combivert Frequency Inverters series and is designed for a 3-phase AC input supply. This inverter has a maximum motor power of 2.2 kW and features an integrated filter and built-in braking transistor. Its nominal input current is 6.4 A, and it supports an output nominal power of 4 kVA at a rated switching frequency of 8 kHz.
Internal Product Review
The 10.F4.S3D-4000 is a KEB F4 Combivert frequency inverter designed for 3-phase AC input at 400 V. Integrated filtering and a built-in braking transistor support clean installation and dependable deceleration control. The 2.2 kW motor capacity and 8 kHz rated switching frequency make the inverter an efficient choice for precise drive performance.
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Product Description:
The 10.F4.S3D-4000 is a frequency inverter produced by KEB and offered within the F4 Combivert Frequency Inverters series. Installed between the incoming AC supply and an induction motor, the unit converts fixed-frequency power into a variable voltage and frequency output so the connected motor can run at adjustable speed and torque in automated conveyors, pumps, and general-purpose drives. An internal braking transistor and radio-frequency interference filter are already installed, which simplifies panel layout and reduces the need for external components. Designed for cabinet mounting, it connects through screw terminals sized for industrial conductors.
The inverter belongs to the 400 V voltage class and is fed from a 3-phase AC line. Its power stage switches with an insulated-gate bipolar transistor carrier of 8 kHz, producing smooth current waveforms that minimize acoustic noise in the motor. Under continuous duty, the unit can source 5.8 A of output current, equivalent to an apparent output of 4 kVA. On the supply side, it draws a nominal 6.4 A. Shield connection hardware is provided, and control wiring shares the same ground reference as the chassis to shorten loop areas and improve electromagnetic compatibility.
For transient demands, the drive can deliver a short-time current of 10.4 A, while overcurrent protection activates at 12.7 A to safeguard the IGBTs. The integrated braking transistor sinks up to 15 A into an external resistor; application guidelines specify a minimum 82 Ω value and list 270 Ω as a typical choice to balance thermal load. The inverter is suited for motors up to 2.2 kW, providing ample margin for conveyors or fan wheels that see momentary surges. Upstream protection requires a 20 A line fuse, and the line terminals accept 2.5 mm² copper conductors to satisfy thermal constraints while keeping cabinet wiring compact.
