An important component, which is known as the motor housing, has as its main function to fix it in the working environment, protecting it according to the environment in which it will be installed. The housing is suitably designed so that it encompasses the different types of mechanical protection to meet the requirements of the standards, relating to the installations and machinery for which the motors need to be designed.
Therefore, the mechanical protections are classified as splash proof and fully enclosed and explosion proof. Drip and splash proof, with all rotating parts or under tension, protected against dripping water from all directions, not allowing the direct or indirect entry of drops or particles of liquids or solid objects that spill or impinge on the engine electric.
In the case of the fully enclosed motor, there is no exchange of the cooling medium between the outer environment and the interior of the enclosure. Depending on the required characteristics, the motors may or may not have fans for cooling. It can then be concluded that the motors must be protected for the protection of those responsible, as well as against harmful external influences, and must comply with safety, accident and fire prevention requirements.