Ko te H3 Series Molded Case Circuit Breaker te Ultimate Safety Breaker. He nui ake ngā whakatakotoranga o te ao mō te haumaru. Ko te mahi whakatuwhera tika - e taunakitia ana e ngā paerewa IEC mō te haumaru mīhini - he āhuatanga o te nuinga o ngā tauira. Mā te pūnaha raka haumaru ahurei mō ngā MCCB mono-ki-roto ka kore e taea e te MCCB te kawe i te iahiko i te wā e tāutahia ana, e tangohia ana rānei.