explosion proof ac motor Series：YBX3 Voltage range：380V，660V，415V，380/660V，660/1140V Power range：0.55-630 kW Application：places where explosive gas mixtures exist in petroleum, chemical, mining, metallurgy, electric power, machinery and other industries. Advantage: fully enclosed, self-fan cooling, squirrel cage type, high efficiency. Explosion-proof mark: Ex d I Mb, Ex d IIB T4 Gb, Ex d IIC T4 Gb Others： SKF, NSK, FAG bearings can be replaced according to customer requirements. https://www.motorxc.com/explosion-proof-motor/explosion-proof-ac-motor