Electromatic engineers pvt. Ltd. An iso:9001:2000 company, under the brand name unitorq is the manufacturer of group industrial clutches and brakes. Being a part of that spring loaded fail safe brakes - usb & umb are applicable in brake motors, hoist & cranes, lifts, storage & retrieval systems, navy deck machinery, textile machinery, ir telescope for satellite tracking, tyre machinery, printing machinery, defence equipment, steel plant machinery, marble / granite machinery and many more. 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.