A high-kW electric motor is used in demanding applications such as large pump stations, crushers, compressors and heavy conveyors. In this power class, quality is measured not only by efficiency but also by the motor's thermal endurance, mechanical strength and stability under continuous load.

Frame and Cooling at High Power

The heat generated at high ratings has a direct effect on motor life. A cast iron frame stands out in this class for its high mechanical strength and vibration damping, while IC411 cooling, provided by the finned surface and a shaft-end fan, keeps the temperature in check during continuous operation.

Insulation and Duty Class

Class F insulation lets the windings withstand high temperatures, while the S1 continuous duty rating means the motor is designed to run without interruption at its rated load. IP55 protection ensures safe use in industrial settings with heavy dust and splashing water.

Torque and Starting Behaviour

When driving heavy loads, starting torque is decisive. On high-kW motors the starting method, whether star-delta, soft starter or variable-speed drive, is chosen to match the load characteristic, protecting both the supply and the mechanical drivetrain from unnecessary stress.

DRG High-kW Motors

DRG Motor supplies high-power motors up to 355 kW with a cast iron frame, Class F insulation and IP55 protection. Share the power, speed, torque and mounting requirements of your application to receive the correct configuration and a current quotation.