10.F4.S1D-4003 KEB
Wake Industrial LLC is not an authorized distributor of this product.
The KEB 10.F4.S1D-4003 is part of the F4 Combivert Frequency Inverters series and features a 4 kVA output apparent power with a nominal output current of 5.8 Amps. This inverter supports three input phases, has a built-in braking transistor, and provides an IP20 protection rating. It allows a maximum braking current of 15 Amps and supports a rated switching frequency of 4 kHz.
Internal Product Review
The 10.F4.S1D-4003 is a KEB F4 Combivert frequency inverter with 3-phase input and 2.2 kW nominal output power. An integrated braking transistor and 4 kHz rated switching frequency give the drive responsive control in standard industrial motion applications. IP20 protection makes the inverter a dependable choice for enclosed panel installations.
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Product Description:
The 10.F4.S1D-4003 is an AC frequency inverter manufactured by KEB within the F4 Combivert Frequency Inverters series. Supplied in the compact Housing Type D format, the unit converts fixed mains voltage into a variable, three-phase output to let industrial pumps, conveyors, and general automation equipment run at commanded speeds. An integrated braking transistor enables rapid, controlled deceleration without the need for an external chopper module, and the drive targets applications requiring motor power up to 2.2 kW. This arrangement lets the drive vary motor speed to match process demand instead of running the connected motor only at line frequency.
Its line side accepts a three-phase supply and draws a nominal input current of 6.4 A. On the motor side, the inverter delivers 5.8 A continuously, corresponding to a real output of 2.2 kW and an apparent power of 4 kVA. Pulse-width modulation is performed at a carrier frequency of 4 kHz, balancing acoustic noise with switching loss. For upstream protection, a 20 A mains fuse is specified, while the internal over-current circuit trips at 12.7 A to protect the IGBTs. Housing Type D provides standardized mounting dimensions and air paths for panel integration, and the built-in braking transistor channels excess DC-bus energy to an external resistor so the motor can be stopped quickly without drive trips.
During dynamic stops, the transistor can sink up to 15 A, and the inverter tolerates a maximum short-time output of 10.4 A for brief overloads. The braking network must include at least a 82 Ω resistor, though a typical value of 270 Ω is recommended when duty is lighter. Heat is carried away through a mass-cast sink that may reach 85 °C under full load, so cabinet airflow must be verified. The unit carries an IP20 protection rating, requiring installation in an enclosed panel free of conductive dust. Adequate cabinet ventilation and proper resistor selection help the inverter manage repeated deceleration events without unnecessary thermal stress.
