LOAD BREAK SWITCH (LBS)

Load Break Switch is a 3-pole switch to break 11kV supply in HT installations, which conforms to IEC 62271-1 standards. Load Break Switches are mounted within metal clad enclosures called LBS Panels. The unique Arc Quenching mechanism makes it capable of breaking normal loads and fault loads. This can be operated on loads up to 1MVA capacity, substituting VCB or a Pole mounted GOS. LBS panels are of a fixed type switch having 3-poles and a spring loaded shaft driving the moving contacts towards the fixed contacts. This is equipped with a trip-free mechanism for opening. LBS can be Tripped by hand push-button, shunt trip coil or a fuse-trip mechanism.

This is an economical substitute for a VCB with loads under 1MVA and a safe, elegant replacement for unpleasant and unsafe pole mounted structures. The product is Type Tesed at ERDA as per the relevant standards.