... +Flange-mounted(B5 model)2, Small vibration and low noise3, IP54 or 55, B or F4, ISO & CE & SGS approval5, Adopt 100% copper ... Inspection Bureau(Government dept) before shipment8, Voltage: 220V~660v,50Hz or 60HzDecide the voltage and frequency of the rated point as ... The Average Temperature ≤ 25° C Elevation ≤ 1000m Rated Frequency 50Hz or 60Hz Rated Voltage 220~660V Working System S Cooling Type ...