Ideal for the coal mine (Exd I) and dangerous plant（Ex dⅡAT4、dⅡBT4）where methane and coal dust may be present; and the environment where there is Category Ⅱ Class A and B flammable gas or the flammable mixture of air and steam in Temperature Group T1-T4.
The YFB4 series high-efficiency dust-explosion-proof three-phase asynchronous motors are fully enclosed self-ventilated squirrel-cage three-phase asynchronous motors. This series of motors features small size, light weight, reliable operation, beautiful appearance, high efficiency, large temperature rise margin, low vibration, low noise, high starting torque, and advanced explosion-proof structure.
Applications: Ideal for the environment where there is Category II Class A and B flammable gas or the flammable mixture of air and steam in Temperature Group T1~T4.
The YFB5 series high-efficiency dust-explosion-proof three-phase asynchronous motors are fully enclosed self-ventilated squirrel-cage three-phase asynchronous motors. This series of motors features small size, light weight, reliable operation, beautiful appearance, high efficiency, large temperature rise margin, low vibration, low noise, high starting torque, and advanced explosion-proof structure.
Applications: Ideal for the environment where there is Category II Class A,B and C flammable gas or the flammable mixture of air and steam in Temperature Group T1~T4.
Ideal for the coal mine where methane and coal dust may be present (Exd I) and dangerous explosion areas（Ex dⅡAT4、dⅡBT4）in the plant with the class ⅡA ⅡB and temperature T1-T4 flammable gas.
Ideal for the coal mine (Exd I) and dangerous plant（Ex dⅡAT4、dⅡBT4）where methane and coal dust may be present; and the environment where there is Category Ⅱ Class A and B flammable gas or the flammable mixture of air and steam in Temperature Group T1-T4.
Grain storage facilities, food processing, textile mill, chemical plant and other applications where hazardous fumes or dust may be present area. However, it does not apply to occasions such as gunpowder or explosives; it is also not suitable for explosion hazards with flammable gases and flammable dust.
