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YB3 Three Phase AC Induction Electric ATEX Explosion Proof Mine Motors Where coal dust maybe present
Ideal for the coal mine where methane and coal dust may be present(Ex dI)and dangerous explosion areas(Ex dIIT4,dIIBT4)in the plant with the classIIA, IIB and temperature T1~T4 flammable gas.
Exd-symnbol ExdI,ExdIIAT4,ExdIIBT4, Category I:surface highest temperature no higher than 150ºC(when coal dust may cover the motor surface), no higher than 450ºC(when coal dust will not cover the surface or some protection work has been done to prevent the coal dust accumulation) CategoryII :surface highest temperature no higher than T1(450ºC),T2(300ºC),T3(200ºC),T4(135ºC); Terminal box with three or six terminals for rubber jacket cable (plastic cable) and steel cable.
Ambient temperature:-15ºC~35ºC in coal mine and -15ºC~40ºC in plant.
Rated Voltage: 380V, 660V, 380/660V
- Frame size: 140 ~ 440
- Rated power: 1 to 250HP
- Frame sizes: 80 to 355 Rated output: 0.18 to 315kW
- Voltage: 380V,660V,380/660V 50Hz (for Exd-symbol Exd I and frame size 80-355);
- 660V/1140V 50Hz (for ExdI-symbol Exd I and frame size 112-355);
- 380V, 660V, 380/660V 50Hz & 400V, 415V, 440V, 460V, 480V, 690V 60Hz(for Exd-symbol ExdII)
- Degree of protection: IP55
- Efficiency levels: IE2
Conventional mounting type and suitable frame size are given in following table(with “√”)
|Frame||Basic Type||Derived Type|
Note: “√” indicates the type of structure that can be manufactured. When ordering the motor, if the terminal box is not specified, it is top type.
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