Ring Main Unit can also be provided with two number Load Break Switch with one number tee-off Vacuum Circuit Breaker with protective devices. It is highly flexible unit used in a wide range of applications including distribution switchboards, transformer substations, ring distribution networks and HV Connections to industrial & commercial sites. The units are developed to suit customer requirements for connection, supply, protection and sectionalizing with remote operation.

Circuit Breaker

The CB comprises of 3 vacuum interrupters, which have a fault-make, fault-break rating. Earthing of the outgoing cable is achieved by the use of CB in series with the off-load disconnector / selector switch.

Ring Switch

These are fault-make load break switches utilizing a single break 3 position switches viz., ‘ON’, ‘OFF’ & ‘Earth’ functions.