The series of explosion-proof motor is our specially design and manufacture for explosion proof propeller fan,it is applicable for coal mine no-ming surface and factory use. Power rating,installation size in line with the International Electrotechnical Commission(IEC)standards,according to GB3836.1 "Explosive Environment Part 1:General requirements of equipment" and GB3836.2"Explosive environment Part 2: Equipment protected by explosion-proof enclosure" d " Regulations made of explosion proof motors,explosion-proof mark is EXdIMb,EXdIIBT4Gb.Common Explosive Gas Mixture Classification and Temperature Grouping is same as YB3 series explosion-proof of Three-phase Asynchronous Motor. The motor with center height of 160 and above use for local fan and the motor with center height 250 and above use for main fan are equipped with in and out oil device.The motor with center height 250 and above use for main fan reserved bearing temperature measurement element location. The length of the lead pipe of the cable connection device for the fan use can be customized according to the user's requirements.