MINIATURE CIRCUIT BREAKERS/ RCBO’s/ RCCB’s: Supply and erection of Miniature Circuit Breakers/ RCBO’s/ RCCB’s in the existing MCB distribution board as per PWD General Specifications 2010 including connections with suitable size of thimbles/lugs. RCBO’S: RCBO (Earth leakage, overload and short circuit protection device) double pole 16/25amp., sensitivity 30mA (Breaking capacity 10kA and as per standard IEC 61009) suitable for 240/415 volts 50 cycles AC supply