Self-braking motors are the asynchronous threephase and single-phase squirrel cage type. They have standard power ratings with electromagnetic disk brakes activated in direct current. Breaks activated in alternating current are also available on request; if necessary, motors can be customized by assembling the brakes expressly required by the customer. The motors are complete with power supplier housed in the terminal box. When the electromagnet of the brake is disactivated, the brake will operate owing to the action of a spring. Axial movement of the brake disk creates a braking action without transmitting pressure or impact to the bearings. The friction material is able to withstand high braking frequency. A manual disengaging lever is available on request.