YB3 series flameproof three-phase asynchronous motor is a new design of totally enclosed fan-cooled high-efficiency cage flameproof motors, it meets the requirement of EFF1 in EU and GB 18613,  and has the advantages of high efficiency, energy saving, long life, good performance, small vibration,convenient maintenance etc., and is a new generation of YB and YB2 series flameproof three-phase asynchronous motors.

This series of explosion-proof motor performance comply with GB3836.1-2000 "Electrical apparatus for explosive gas atmospheres - Part 1: General requirements" and GB3836.2-2000 "Electrical apparatus for explosive gas atmospheres - Part 2: flameproof" d "" , and meet the IEC79-1,BS4683 and EN50018. were made flameproof ExdⅠMb, ExdⅡAT4 Gb, ExdⅡBT4 Gb, ExdⅡCT4, applicable to the presence of explosive gas mixtures in place. Suitable for the coal mine underground non mining work face and factories with dangerous places with group IIA, IIB and IIC,  temperature  group are T1-T4 of explosive gas mixture.

Operating Conditions

Rated Voltage：380V、660V、380／660V、660／1140V

Rated Frequency：50Hz

Protection Class：IP55

Cooling Method：IC411

Working System：S1

Insulation Class：F

Installation Type：IMB3、IMB5、IMB35

Ambient temperature: -15ºC≤θ≤40ºC

Altitude:Altitude should be lower than 1000meters above sea level