The vast majority of motors sold on the market today are not waterproof, in large part because they do not need to be waterproof for the environment they operate in. With motion control components often at risk of corrosion and failure due to water and solvents, waterproof motors are a key component in solving the problem of water-induced motor failure. The motor industry has a standardised protection against liquids, called IP protection rating, which power engineering and motor manufacturers need to meet the application specification requirements.
DD's underwater motor D2216 can operate up to 300 metres underwater/subsea and is a truly waterproof motor that works well in deep water environments - in a variety of industrial and marine environments.