Product Description:

The 13.F4.F1E-3440 is a variable-speed frequency inverter produced by KEB within the F4 Combivert Frequency Inverters series. As a drive controller, it converts a fixed mains supply into a variable-frequency and variable-voltage output so that induction or synchronous motors can follow commanded speed profiles in automated conveyors, mixers, and pump stations. This allows the drive to regulate acceleration, running speed, and deceleration in common industrial motion tasks. It is suited for applications where motor speed must change with process demand instead of remaining fixed at line frequency. The enclosure measures 290 mm in height, 130 mm in width, and 200 mm in depth, which helps preserve cabinet space in control panels.

This model operates from a three-phase line at 400 V AC and draws an input current of 13.2 A at nominal load. It delivers a rated output current of 12 A to the motor through carrier pulses switched at 8 kHz, balancing electromagnetic noise and thermal stress. An integrated braking transistor dissipates regenerated energy during deceleration, and the inverter accepts a 20 A mains fuse for circuit protection. With a maximum motor rating of 5.5 kW, the unit can run medium-size production drives, while its internal PTC evaluation monitors motor temperature and trips the drive before winding limits are exceeded. Three input phases keep DC-bus ripple low and support consistent torque across the speed range.

The drive’s apparent power capability reaches 8.3 kVA, and it can momentarily supply a peak current of 21.6 A for 30 seconds to overcome inertial loads during startup. Parameter adjustments are resolved to 0.5 rpm, allowing fine speed trimming in positioning or tensioning applications. The housing carries an IP20 protection class, so it must be mounted inside a closed panel to protect it from dust and accidental contact. This panel-mounted arrangement suits installations that rely on enclosure airflow and a built-in heat sink for normal thermal control.