EN
The ROBA®-duplostop® is a redundant safety brake for elevator machines.
The ROBA®-duplostop® brake is a spring-applied, electromagnetic safety brake.
In de-energized condition, springs press against the armature disks. The rotor is therefore held between the armature disks and the relevant screw-on surface of the machine. The motor shaft is braked via the rotor.
When the power is switched on, a magnetic field is built up. The armature disks are attracted against the spring pressure to the coil carrier. The rotor is released, and the shaft is able to rotate freely.
