Product Description:

The 10.F4.C1D-3460 frequency inverter is produced by KEB under the F4 Combivert Frequency Inverters series. It converts fixed mains power into a variable voltage and frequency output so that induction or synchronous motors can accelerate, decelerate, and hold set speeds precisely within automated machinery and material-handling equipment. The unit belongs to the medium-power segment of the product line and integrates a braking transistor for controlled energy dissipation during rapid deceleration, which helps manage regenerative energy during stopping.

For connection to plant utilities, the drive is rated for the 400 V supply class and accepts a three-phase line through terminals sized for a 2.5 mm² conductor cross-section. Under continuous loading, it draws a 6.4 A nominal input current, which the installation should accommodate with appropriately sized contactors and cabling. Internally, the inverter regulates the motor output to a steady 5.8 A nominal current, matched to an apparent power capability of 4 kVA. These figures indicate the maximum thermal stress on the power modules during normal duty cycles and mark the frame’s utilization limit in closed-loop vector or V/Hz modes. A housing design coded D encloses the heatsink and bus capacitors, providing airflow paths consistent with cabinet mounting.

For dynamic events that exceed steady-state loading, the control permits 10.4 A of short-time current before the overcurrent trip threshold of 12.7 A is reached. This margin supports brief acceleration peaks without immediately interrupting motor operation. Motor sizing can extend up to 2.2 kW, allowing the inverter to run standard IEC frame machines on conveyors or fans. IGBT switching takes place at 12 kHz, a frequency that keeps acoustic noise low while increasing semiconductor losses to 80 W, which the forced-air channel must evacuate. Safe operation is maintained as long as the heatsink remains below 85 °C, and branch protection is provided by a 20 A mains fuse.