Technical features We supply internally and surface-ventilated low-voltage cage induction machines in standard and special designs. General Data Frame size 63 to 500 Degree of protection from IP23 to IP65 Single and change-pole speeds Types of protection Ex e, Ex n Ex d for ambient temperatures as low as – 50 °C Converter-controlled machines Energy-saving designs (optimised efficiency) High-Speed Machines up to 12,000 rpm and 500 kW Motors for marine applications to regulations of international classification societies