EFC3610-18K5-3P4-MDA-NN-NNNNN-NNNN

The EFC3610-18K5-3P4-MDA-NN-NNNNN-NNNN is a three-phase AC frequency converter produced by Bosch Rexroth Indramat within the EFC Frequency Converters series. It converts fixed 380 V mains power into variable voltage and frequency so induction motors in conveyors, pumps, and processing equipment can match speed and torque to changing load demand. In industrial automation this electronic control replaces mechanical throttling, improves energy efficiency, and permits precise process regulation during acceleration, continuous running, and deceleration.

Under heavy-duty rating the drive supports 18.5 kW of motor power and can supply up to 25.8 kVA of apparent output. On a 380 V line it feeds the motor with 39.2 A while drawing 45.8 A from the supply; these currents guide cable sizing and circuit-breaker selection. Thermal behavior is governed by 530 W of heat dissipation at full load, so enclosure ventilation must evacuate this heat continuously. These electrical figures sustain stable torque production when the converter is paired with standard asynchronous motors used in mixers, extruders, or hoists. The heavy-duty rating maintains a constant overload margin for operations with frequent starts and high inertia loads.

The enclosure is 165 mm wide, while its 241 mm depth and 315 mm height determine panel spacing and cabinet door clearance in crowded control rooms. A dedicated heatsink blower moves 1.13 m3/min of air across the power module, and a secondary internal fan circulates 0.99 m3/min around the control board, preventing localized hot spots. Correct mounting clearances let the fans move unobstructed air, preserving semiconductor life and preventing nuisance trips during continuous acceleration cycles.