An electric motor is an electrical machine that converts electrical energy into mechanical energy. Electric motors can be powered by direct current (DC) sources, such as from batteries, motor vehicles or rectifiers, or by alternating current (AC) sources, such as a power grid, inverters or electrical generators. Amazon Ship Supplies supplies a wide range of electric motors both AC & DC from a wide range of leading manufacturers. Electric motors that have to work under extreme conditions must often be explosion-proof. This applies to e.g. motors that need to work in marine conditions, in tunnel drilling machines and in offshore installations, where there may be requirements for ATEX approval. We offer a wide range of explosion-proof electric motors and supply most models quickly and directly from our own warehouse.