... confirms to GB14048.2, IEC60947-2 standards. Classification of MCCB 1, Installation type of MCCB: MCCB are suiable for vertical or ... harizontal installation. 2, According to use of MCCB: Distribution circuit protection type, motor protection type; 3 ... modynamicmagnetic type (dual), electronical release; 6, According to number of poles: Two poles, there poles, four poles. 7, The ...