SP MCB single pole mcb

     SPN MCB Single pole and        neutral

   DP MCB Double MCB

     TP MCB Three pole mcb

 TPN MCB Three pole and Neutral

 FP MCB Four Pole     MCB

     MCB work Short circuit and     overload     Protection

   MCB Amp size 1Amp to 100Amp

 MCB type B, C, D, K, Z,