The power range reaching up to 355 kW covers heavy industry's most demanding applications. Motors in this class drive large pumps, compressors, crushers and main transmission lines that require high torque and continuous operation. At high power, efficiency is decisive, because even a small percentage difference turns into large figures on the annual electricity bill.

Why Efficiency Matters at High Power

A 355 kW motor running 16 hours a day consumes hundreds of thousands of kilowatt-hours per year. Under IEC 60034-30-1, the IE3 (Premium) and IE4 (Super Premium) classes deliver serious savings at this scale with only a few points of higher efficiency. The efficiency class therefore sits at the heart of the purchasing decision for large motors.

Mechanical Durability and Cooling

High-power motors are built with cast iron frames; this material damps vibration and dissipates heat better. Robust bearings, a balanced rotor and effective fan cooling keep the motor within its temperature limits under S1 continuous duty. IP55 protection adds resilience for the heavy-industry environment.

Total Cost of Ownership

In this power class, the energy a motor consumes over its lifetime is many times its purchase price. Selection should therefore rest not on the initial price alone but on efficiency, ease of maintenance and expected running hours. A high-efficiency motor more than repays the price difference within a few years.

A Solution Up to 355 kW With DRG Motor

İzmir-based supplier DRG Motor offers cast iron, high-efficiency motors across a wide range from 0.55 kW to 355 kW. Once you share your application's power, speed and mounting requirements, it identifies the model best suited to heavy-industry conditions.