1.The explosion-proof characteristic which conforms to GB3836.1-2000 < < General Requirements- - Electrical Apparatus Used in Explosive Atmosphere Part 1 >> and GB3836.2-2000 << Flame-proof "d"- - Electrical Apparatus Used in Explosive Atmosphere Part 2 >> can be made into flame-proof type. This range of motors, whose explosive marking is dI, dIIAT4, dIIBT4 and dIICT4, can respectively used in places where there are flammable gas and the mixture of the vapour and air in the coal minging and factory where the protection degree is IIA,IIB or IIC and temperature is T1-T4.
2. Construction and Basic Parameter
The enclosure of motors is IP44 and IP54, while the terminal box IP54.The cooling system is ICO141 by the rotation of fan of blower to cool the surface of motor. The insulation class is F. The mounting arrange is IMB3. The duty type is continue S1. The rated frequency is 50Hz. The rated voltage is 380V, 660V, 380V/660V.