Hei kaihanga haumaru hiko ngaio, ka whakarewahia e YUANKY te KNL6-63 Series Residual Current Circuit Breaker (RCCB), he taputapu haumaru kounga teitei i hangaia hei tiaki i ngā kaimahi me ngā pūnaha hiko mai i ngā ru hiko me ngā tūponotanga ahi i puta mai i ngā ia turuturu. Kei roto i tēnei RCCB 2-pou he ngaohiko whakahaere kua whakatauria o te 230/400V, te iahiko ingoa tae atu ki te 63A, me te kaha pakaru ara iahiko poto o te 10kA, e tuku ana i te mahi pumau me te pono mō ngā tono ahumahi, arumoni me ngā tono noho o te ao.

I runga i te Ture Au o Kirchhoff, ka whakahaerehia te KNL6-63 me tētahi Whakawhiti Au Taurite Matua (CBCT) ā-roto hei aroturuki i te taurite o te au i roto i ngā waea ora me ngā waea kūpapa. I raro i ngā āhuatanga noa, he ōrite ngā au e tomo mai ana me ngā au e puta atu ana; ina puta he hapa turuturu (hei tauira, he pakaru te whakamarumaru, he pā tūpono rānei), ka whakaohohia te taputapu e te kore taurite o te au, ka tere tonu te oma i roto i te ≤0.1s (≤0.04s i te 5×IΔn) hei tapahi i te hiko. Mā te pātene whakamātautau kua hangaia ki roto ka taea te manatoko ngāwari i te mahi, kia mau ai te mahi pono mō te wā roa.

E tutuki ana i ngā paerewa o te ao tae atu ki te IEC 61008, CE me te SIRIM, ka tautoko te KNL6-63 i ngā taumata aro maha (30mA, 100mA, 300mA, 500mA) hei whakatutuki i ngā whakaritenga kanorau o te mākete. Mā tōna hoahoa kiato ka ngāwari te tāutanga ki ngā papa tohatoha, ā, mā ngā rauemi whakamarumaru kounga teitei ka roa te mau i roto i ngā taiao uaua. He whānuitia te whakamahinga i roto i ngā whare noho, ngā whare arumoni, ngā mīhini ahumahi, ngā kāpata tohatoha hiko me ngā pūnaha rā, he otinga haumaru pono mō ngā hoa mahi o te ao, e āwhina ana i a rātou ki te whakatutuki i ngā paerewa haumaru ā-rohe me te whiwhi urunga ki te mākete.