There are various types of explosion-proof motors, and in explosive hazardous areas, the selection of motors is crucial to ensure safe production. We must have an understanding of the explosion-proof performance when selecting explosion-proof motors. So how to choose a suitable explosion-proof motor? We will introduce from the following aspects.

The difference between explosion-proof motors and ordinary motors:

(1) Explosion proof motors are generally used in flammable and explosive environments; (2) The sealing of the explosion-proof motor junction box is better than that of ordinary motors; (3) The minimum protection level for explosion-proof motors is IP55, but there are also IP44 and IP54. Ordinary motors have IP23, IP44, IP54, IP55, and IP56, which are suitable for places that do not contain flammable, explosive, corrosive gases and are relatively clean. They are also used to drive various mechanical equipment without special requirements, such as machine tools, pumps, fans, compressors, transportation machinery, etc. Therefore, they can be distinguished from their appearance.

The lowest protection level for explosion-proof motors is IP55, while ordinary motors have different protection levels such as IP23, IP44, IP54, IP55, and IP56, so they can be distinguished from their appearance.

1. Classified by motor principle

It can be divided into explosion-proof asynchronous motors, explosion-proof synchronous motors, and explosion-proof DC motors.

2. Classified by usage location

It can be divided into explosion-proof motors for underground coal mines and explosion-proof motors for factories.

3. Classified by explosion-proof principle

Explosion proof motors, increased safety motors, positive pressure motors, non sparking motors, and dust explosion-proof motors, etc.

4. Divided by matching hosts

It can be divided into explosion-proof motors for coal mine transport aircraft, explosion-proof motors for coal mine winches, explosion-proof motors for rock loaders, explosion-proof motors for local fans in coal mines, explosion-proof motors for valves, explosion-proof motors for fans, explosion-proof motors for ships, explosion-proof motors for lifting and metallurgy, and increased safety brushless excitation synchronous motors for hydrogen refueling equipment. In addition, it can also be classified according to technical indicators such as rated voltage and efficiency, such as high-voltage explosion-proof motors, high-efficiency explosion-proof motors, high slip explosion-proof motors, and high starting torque explosion-proof motors.