Three phase 230/400V, 50 Hz. Protection class IP 55. Insulation class F. With cage rotor. Surface cooled. Up to 0,55 kW in efficiency class IE2. From 0.75 kW in efficiency class IE3. The rated output stated below refers to continuous duty, an operating frequency of 50 Hz, a maximum ambient temperature of 40°C and an altitude 1000 m above sea level. Special versions on request: With non-standard voltage and frequency, dual speed, with electromagnetical DC spring-tension disc brake; AC capacitor motor 230 Volt.