Siemens 1LE0001 series motor technology features   Base Material: gray cast iron ;   Standard colors: stone gray ( RAL 7030) ;   Rated power : 0.55kW ~ 315kW ( 50Hz)   0.75kW and above 2, 4, 6 pole motors achieve GB18613-2012 standard energy efficiency rating of 3 , and can meet the IEC 60034-30 standard IE2 efficiency level ( 50Hz) ;   Optimized compact structure ;   standard installation structure type ( in line with IEC 60034-7 standard ) : IM B3, IMB5, IM B35 , etc. ;   All motor design protection class IP55 ( IEC 60034-5) ;   FS1) 280 ~ 355 standard relubrication device , FS1) 100 ~ 250 as an option ;   For FS 100 ~ 355 range motor , optional enhanced cantilever force design ;   Optional motor thermistor PTC or PT100 or KTY84-130 carried winding protection ;   standard position at the top of the junction box base, line the hole on the right side ( drive end ) , option terminal box position and line changes direction ;   Insulation System by 155 ( F) temperature level design , and directly at the rated output power by 130 ( B) use temperature rating ;   Motor standard cooling method for cooling from the fan ( IEC 60034-6 requirements of IC 411) , available separately driven fan forced cooling ;   FS 80 ~ 90 motors without bail ; FS 100 ~ 315 motor has two rings , FS 355 motor has an rings for transport. Operating Environment   Protection class IP55 ( IEC 60034-5) ;   height does not exceed an altitude of 1000 m ( IEC 60034-1) ;   permissible ambient temperature -20 º C ~ 40 º C ( IEC 60034-1) ;   the allowable relative humidity: • -20 º C d T d 20 º C: 100% • 20 º C < T d 30 º C: 95% • 30 º C < T d 40 º C: 55%