... :years of motors history,high quality 3:explosion-proof 4:Protection class:IP55 YB2 series explosion-proof motors production description: 1: Type :YB2-80M1 ... ,B5,B35,V18: Protection degree:IP55 YB2 series motors are explosion-proof three phase squirrel cage three phase induction motors, totally enclosed ... ,high efficiency,energy-saving long life, low noise,slight vibration,operation safety.