14.F4.F1E-4I30 KEB
Wake Industrial LLC is not an authorized distributor of this product.
The KEB 14.F4.F1E-4I30 is a field-oriented frequency inverter in the F4 Combivert Frequency Inverters series. It has a voltage class of 400 V and supports a maximum motor power of 7.5 kW with a nominal input current of 18.1 A. This inverter includes an integrated brake transistor, direct incremental encoder output, and operates with a maximum switching frequency of 16 kHz.
Internal Product Review
The 14.F4.F1E-4I30 is a KEB F4 Combivert frequency inverter with field-oriented control and a 400 V voltage class. An integrated brake transistor and 7.5 kW maximum motor power support precise deceleration and capable drive performance. A strong inverter option for demanding industrial motion control applications.
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Product Description:
The 14.F4.F1E-4I30 is a frequency inverter produced by KEB as part of the F4 Combivert Frequency Inverters series. It converts fixed three-phase mains energy into variable voltage and frequency so that AC motors can be started, stopped, and regulated under PLC command in material-handling, pumping, and positioning tasks. By combining power conversion, braking circuitry, and encoder interfacing in one enclosure, the unit reduces panel space while delivering the coordinated motor control needed in automated manufacturing cells. Its integrated control and power sections also suit machines that need compact drive hardware and stable motor response during speed changes.
This drive is built for a three-phase supply in the 400 V class and can deliver a continuous apparent power of 11 kVA, which corresponds to an output nominal current of 16.5 A. The internal IGBT bridge may pulse up to 16 kHz, though the rated carrier frequency for general duty is 8 kHz, which balances acoustic noise and thermal stress. Field-oriented control maintains torque accuracy across the speed range, and a direct incremental encoder output is available for feedback. The stall current equals the nominal current when the 8 kHz setting is used, preserving motor flux during heavy starts. Power conductors with a 4 mm² cross section can be landed on the terminal block, supporting the stated current capacity.
An integrated brake transistor channels regenerated energy into external resistors no smaller than 50 Ω. The inverter draws a nominal input current of 18.1 A, and semiconductor losses are limited to 240 W, values that affect cabinet ventilation requirements. Branch protection is achieved with a maximum mains fuse of 25 A, while reliable operation requires that the heat sink remain below 73 °C. This braking arrangement is useful where decelerating loads return energy to the drive, because excess energy can be diverted during stopping and speed-change cycles. The unit can energize motors up to 7.5 kW without derating for conveyor segments, mixers, or indexing axes.