YB2 explosion proof three phase asynchronous motors are designed and manufactured into flameproof type and the flameproof property conforms to China National Standards:
GB3836.1-2000 Electrical Apparatus for Explosive Gas Atmospheres-General Requirements.
GB3836.2-2000 Electrical Apparatus for Explosive Gas Atmospheres- Flameproof Enclosure d and standards IEC79-1, BS4683 and EN50018.

ExdI- safe for use in the non-mining surfaces of underground coal mines where the explosive mixtures of methane or coal-dust are present.
ExdIIAT4 - safe for use in plants where the explosive mixtures of IIA Class, TI, T2, T3 or T4 are present.
ExIIBT4 - safe for use in plants where the explosive mixtures of IIB Class, TI, T2, T3 or T4 are present.
ExdIICT4 - safe for use in plants where the explosive mixtures of IIC Class, TI, T2, T3 or T4 are present.

1. Ambinent tempertuer should not be more than 40º C
2. The elevation should not be exceed 1000 meters.
3. The relative humindity should not be more than 90%.
4. Rated Frequency: 50Hz
5. Rated voltage: 380V 660V 380V/660V
6. Operation mode is S1
7. Protection degree: IP55, Insulation class: F