Product Description:

The 23.F4.C1R-3410 frequency inverter belongs to the F4 Combivert Frequency Inverters series manufactured by KEB. This AC drive accepts a three-phase supply and produces an adjustable output waveform so that connected motors can accelerate, decelerate, or hold constant speed according to the machine controller. By substituting variable electrical power for mechanical throttling, the unit improves process accuracy, decreases wear, and lowers energy consumption in conveyor, fan, and pump applications throughout industrial automation.

During steady production the inverter draws a nominal line current of 165 A, a figure used to rate upstream contactors and protection fuses. Its power stage can supply 150 A of continuous current to the motor windings, establishing the frame’s thermal limit. Protective circuitry trips when instantaneous output reaches 270 A, preventing device damage during stalled-shaft or short-circuit events. Internally, insulated-gate transistors switch at 2 kHz, balancing acoustic noise with switching loss. All electrical limits are specified for the 400 V Class mains category common to 380-420 VAC factory networks.

The remaining ratings address mechanical layout and duty cycle. A maximum motor power of 75 kW can be controlled without derating, matching medium-sized pump or compressor loads. Terminals accept conductors up to 95 mm², minimizing voltage drop at the high currents referenced earlier. Dynamic braking is supported through an external element that must be no less than 6 Ω, ensuring resistor temperature stays within design limits while absorbing energy. Heat is removed through a baseplate that may reach 90 °C; cabinet airflow and the required input choke help keep this surface below that threshold during intermittent peak cycles.