MCB- Miniature Circuit- Breakers for A. C. Operation as per, IS/ IEC 60898, Part 1, Q2, Molded Case Circuit Breakers, MCCB as per IS/ IEC 60947, Q3, Piano Type Non Modular, Domestic Electrical sockets- IS 1293, Non- Modular, Piano Type Domestic Electrical Switches as per IS 3854