These types of brakes require DC Voltage to release. Switching can be done on either side. However for higher cycle time / faster engagement & disengagement, switching must be carried out on DC side only.
To protect contactor points, coil & switches, resistor and capacitor networks must be provided across the contactor to restrict the high restrict the inductive voltage/brake EMF which is produced when power is switched off.

Unitorq USB & UMB series brakes are absolutely fail safe in nature, and finds wide range of applications where emergency stop is required. When power fails or brake remains in engaged condition for longer periods of time, these brakes are ideal for the applications. Unitorq D.C. fail safe brake functions on an electromagnetic principle.

These types of brakes require DC Voltage to release. Switching can be done on either side. However for higher cycle time / faster engagement & disengagement, switching must be carried out on DC side only.
To protect contactor points, coil & switches, resistor and capacitor networks must be provided across the contactor to restrict the high restrict the inductive voltage/brake EMF which is produced when power is switched off.

Unitorq USB & UMB series brakes are absolutely fail safe in nature, and finds wide range of applications where emergency stop is required. When power fails or brake remains in engaged condition for longer periods of time, these brakes are ideal for the applications. Unitorq D.C. fail safe brake functions on an electromagnetic principle.