The F3 Combivert Static Frequency Inverters series from KEB comprises a range of static frequency inverters designed for variable-speed control of three-phase motors in industrial applications.
The series includes both 200 V and 400 V classes, with size ranges extending from smaller low-power units up to larger models rated for motors as large as 75 kW, and output frequencies adjustable from 0 to 400 Hz. Its control platform provides digital and analog setpoint handling, programmable multifunction inputs and outputs, relay and optocoupler outputs, analog monitoring capability, and operator-based parameter access for commissioning and operation. The series also includes adjustable acceleration and deceleration times, multi-step speed selection, programmable monitoring functions, braking resistor connection options, and protective features related to faults, short-circuit behavior, and motor operation. For installation, the units are intended for fixed cabinet mounting with vertical orientation, defined spacing for cooling, separate routing of power and control wiring, and operating conditions suited to industrial environments.