Option for low-temperature version -55 °C Order option NLO D021 1 Description The NLO D021 option includes all the necessary measures to upgrade the basic motor for transport/ operation at -55 °C. This mainly affects components made of steel, cast iron, lubricants and seals, since the material properties change as the temperature decreases. Other accessories must be tested for their suitability for low temperatures. 2 Technical specifications 2.1 HV C (1NA/1NN, IC41x) Shaft Special steel Rolling bearing Special bearing design and lubricating grease Sleeve bearing Sleeve bearing with oil sump heating (T15)1 Stator frame Bearing shield Paint finish Enclosure attachment Cooling pipes Special design Cable ducts Safe Area: Standard Ex: Special material Option T15 not included in this option Department responsible Technical reference Document type Document status Option for low-temperature version -55 °C SIMOTICS HV C, HV M, HV HP Order option NLO D021 Document number Edition date (YYYY-MM-DD)

Special steel Rolling bearing Special bearing design and lubricating grease Sleeve bearing Sleeve bearing with oil sump heating (T15)1 Stator frame Special steel Bearing shield Special steel Special steel Paint finish Enclosure attachment Cooling pipes IC41x: Standard IC51x: Special sealing Special design Cable ducts Special material Special steel Rolling bearing Special bearing design and lubricating grease Sleeve bearing Sleeve bearing with oil sump heating (T15) and special sealing material1 Stator frame Cast iron: Standard Steel: Critical parts made of special steel Bearing shield Paint finish...