Brakes are used to shorten the braking process or to secure during standstill. AC operated brakes, which are turned on and off together with themotor winding, are usually used for AC polyphase motors. DC operated brakes are for use with DC motors. These brakes should be switchedon and off separately from the motor current in order to prevent a considerable delay.
This is an Fail-safe operated spring-applied single-disc brake. The braking power is created by spring pressure and lifted by an electromagneticfield. This means the brakes are effective when the current is off or during a power failure.