YB3 Series IE2 High Efficiency Explosion-proof Induction Motor
Exd-symbol Exd Ⅰ Mb, ExdⅡAT4 Gb, ExdⅡBT4 Gb
Category Ⅰ: surface highest temperature no higher than 150℃ (when coal dust may cover the motor surface), no higher than 450℃ (when coal dust will not cover the surface, or some protection work has been done to prevent the coal dust accumulation)
Category Ⅱ: surface highest temperature no higher than T1(450℃), T2(300℃), T3(200℃), T4(150℃); Terminal box with three or six terminals for rubber jacket cable (plastic cable) and steel cable.
Frame sizes: 80 to 355 ;
Rated output: 0.18 to 315kW ;
Ambient temperature: -15℃~35℃ in coal mine and -15℃~40℃ in plant ;
Degree of protection: IP55 ;
Efficiency levels: IE2 ;
380V、660V 50Hz (for Exd-symbol Exd Ⅰ and frame size 80-355) ;
660V、1140V 50Hz (for Exd-symbol Exd Ⅰ and frame size 112-355) ;
380V、660V 50Hz & 400V、415V、 440V、 460V、480V、 690V 60Hz (for Exd-symbol ExdⅡ) ;
Ideal for the coal mine where methane and coal dust may be present (Exd Ⅰ) and dangerous explosion areas（ExdⅡAT4、dⅡBT4）in the plant with the class ⅡA ⅡB and temperature T1-T4 flammable gas.