12.F4.S1E-3480 KEB
Wake Industrial LLC is not an authorized distributor of this product.
The KEB 12.F4.S1E-3480 is part of the F4 Combivert Frequency Inverters series and features a braking transistor and standard control version. It supports a maximum motor power of 4 kW with a nominal apparent power of 6.6 kVA and has a housing height of 275 mm. The inverter is rated for IP20 protection and is designed for 3-phase 400 V supply with a switching frequency of 16 kHz.
Internal Product Review
The 12.F4.S1E-3480 is a KEB F4 Combivert frequency inverter with 3-phase input and 4 kW motor capacity. A braking transistor and 16 kHz switching frequency support controlled deceleration and smooth drive response. IP20 protection and a 400 V supply class make the unit a strong fit for enclosed industrial drive panels.
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Product Description:
The 12.F4.S1E-3480 is a variable-frequency inverter produced by KEB within the F4 Combivert Frequency Inverters series. It converts fixed three-phase mains power into a pulse-width-modulated output so a controller can vary motor speed and torque for conveyors, pumps, and other automated equipment. By combining current limiting with an integrated braking transistor, the unit supports controlled acceleration and deceleration while helping protect both the motor and the supply network. This operating method also helps the drive respond smoothly to changing load conditions during routine machine cycles.
This inverter operates on a 400 V distribution system and accepts a 3-phase input for connection to common industrial feeders. Under rated conditions, the power stage handles a 6.6 kVA load, draws a line current of 10.5 A, and delivers 9.5 A to the motor. The switching stage uses pulse-width modulation to regulate output frequency and voltage, which supports stable speed control across typical process demands. An integrated braking transistor manages regenerated energy during rapid deceleration, and the standard control version provides the baseline operating feature set used for this model. These electrical values indicate the normal loading range of the inverter and support proper coordination with the connected motor and supply circuit.
The mechanical layout uses Housing E and has a height of 275 mm, which allows installation in IP20 control cabinets that rely on external airflow. Motor leads may extend up to 100 m when shielded cable is used, helping maintain electromagnetic compatibility over longer routing paths. The inverter supports motors up to 4 kW and can tolerate short-term overloads to 17.1 A before protective logic trips at 20.9 A. The 3K3 climatic rating indicates suitability for standard factory conditions, and the cabinet must provide the airflow needed to remove operating heat. This arrangement suits enclosed industrial panels where cable space, cooling clearance, and controlled drive behavior are all important.
