YB2 series flameproof three phase asynchronous motor is the basic explosion-proof motor product, which is developed by combining current market and domestic flameproof motor industry, and is also the new generation product of YB series flameproof electric motor. YB2 series electric motors have the features of high efficiency, safety and reliable, are mainly applied in coal mines,petrochemical industry and chemical industry.

     The flameproof performance of YB2 series electric motors are comply with Chinese National Standard GB3836.1-2010 “Explosive atmospheres-Part 1: Electrical equipment-General requirements”, and GB3836.2-2010 “Explosive atmospheres-Part 2: Electrical equipment protection by flameproof enclosures ‘d’”, also comply with IEC 60079-0 & IEC 60079-1.

       We supply YB2 series electric motors with Ex marking Exd I, Exd II AT4 and Exd II BT4, Exd I is intended for mines where the atmosphere, in addition to firedamp, may contain significant proportions of other flammable gases; While Exd II AT4 and Exd II BT4 are intended for use in places with an explosive gas atmosphere other than mines susceptible to firedamp, A denote a typical gas is propane, B means a typical gas is ethylene, and the atmosphere temperature is T1, T2, T3, T4.