YB3 series of three phase flame proof asynchronous motors are updated high efficiency products to replace YB2 series. The products have features as high efficiency, low noise, low vibration, smooth and reliable operation, nice appearance . They are widely used in petroleum and chemical industry, coal and carbon industry. 

This series have flame proof performance in accordance to GB3836.1 Explosive Atmosphere Electrical Apparatus, Part 1, General Requirements and GB3836.2 Explosive Atmosphere Electrical Apparatus, Part 2,  Apparatus with Flameproof Type “d” Enclosure. Mechanical performance are in accordance with JB/T7565.1-2011 Specification of three-phase flameproof asynchronous motor -Part 1 : Series YB3 Flameproof Three-Phase Asynchronous Motor ( frame size 63-355) .

This series of products are designed 380V, 660V，50 HZ, IP55, cooling method IC411, Self Fan cooling, insulation Class F with Class B temperature rise。 The products are applicable to underground coal mine (non-mining face) and the factories containing explosive gas mixtures specified in the above standards for the operation site electric drive.

Customized products are available for various voltages, frequency, installation Methods such as 220V, 440V, 60HZ, etc.  Good technical support will be provided to our  client’s .