YDSB1 MCB for AC 50Hz or 60Hz, rated working voltage of 230/400V and below, rated current of 63A and below the line, used for office buildings, residential buildings and similar lighting and electrical distribution lines equipment overload, short circuit protection, under normal circumstances can be as infrequent line conversion purposes. The product has advanced structure, reliable performance, high breaking capacity, compact appearance and other characteristics, impact-resistant housing and components, made of flame-retardant materials. 
The product complies with IEC60898-1 and GB10963.1 standards.