This range of totally-enclosed, self- cooled squrrel- cage flame - proof three- phase motors has the advantages of flame- proof characteristic advanced, reliability high,etc.
This range of motors, whose the explosion- proof properities conform to GB3836.2-83 < < Flame- proof Electrical Apparatus "d"- -Explosion-proof Electrical Apparatus Used in Explosive atmosphere > > and IEC79-1, can be respectively made into flame-proof types of dI, dIIAT4, dIIBT4 available for being used in hazard places with explosive gas mixtures.
The protect degree of enclosure of motors is IP44 or IP54 compling with GB/T4942.1-93 and IEC43-529. The cooling system is ICO141 with GB1993-80 << The cooling Method of Motors >>.
Operating condition
Temperature:variable with season but less than 40°C.
The elevation :less than 1,000m.
Rated voltage:220V, 380V, 660V, 220/380V, 380V/660V.
Duty type:continue(S1).
Frequency:50Hz.
The comparation of frame size via speed and output. |