Hei kaihanga hiko iti-ngaohiko ngaio me te 20 tau o te wheako ahumahi, ka whakaatuhia e YUANKY te DC S7 SeriesPūwhakapakari Arahiko Iti DC Rā(MCB), he otinga mahi-teitei kua whakaritea mō te tiaki me te wehewehe i te ara iahiko DC, kua arotauhia mō ngā whakaurunga hiko pūngao-rā photovoltaic (PV). Kei te wātea i roto i ngā whirihoranga 1P ki te 4P, e tautoko ana i ngā ngaohiko whakatauranga mai i te DC250V ki te 1000V, te iahiko whakatauranga mai i te 6A ki te 50A, me ngā āhuatanga takahuri momo-C (7In-15In). Ka tukuna he kaha pakaru whakatauranga 6kA me te kaha pakaru ara iahiko poto iti 15kA i te 250VDC, me te wā urupare tino tere ≤4ms. Ko tana hoahoa auaha kore-polarized he mea nui, e whakakore ana i te rerekētanga polarity i te wā e waea ana, e penapena nui ana i te wā tāutanga me te karo i ngā hapa waea.

Ka whakahaerehia tēnei MCB DC i runga i tētahi tikanga tiaki-rua hei whakatika i ngā hapa pūnaha DC noa. Hei tiaki i te taumaha rawa, ka piko te rīpene whakarewa-rua kua hangaia ki roto i te wera hei whakaoho i te tikanga whakataka, ka tapahia marietia te ara iahiko i raro i te taumaha tonu hei ārai i te kino wera o ngā taputapu. Mō ngā hapa ara iahiko poto, ka whakaoho tonutia he tukunga hikohiko tairongo-teitei, ka whakakore i te iahiko hapa i roto i te ≤4ms hei karo i ngā tūponotanga mai i ngā pewa DC. He pūnaha tinei pewa DC ngaio kei roto, ka whakatauhia te wero o te tinei pewa i roto i ngā ara iahiko DC kāore he pūwāhi whakawhiti-kore taiao, e whakarite ana i te pakaru haumaru me te pono. Mā te hoahoa whakairinga reera DIN ka taea te tāutanga ngāwari, tere i roto i ngā kāpata tohatoha paerewa.

He tino tutuki i ngā paerewa o te ao IEC 60947-1/2, kei te hua te tiwhikete CE me ngā pūrongo whakamātautau CB i tukuna e SEMKO, e tutuki ana i ngā whakaritenga urunga mākete o te ao. Ka mahi pūmau i roto i te -5℃ ki te +60℃, ka urutau ki ngā āhuatanga mahi uaua. He whānuitia te whakamahinga i roto i ngā pūnaha PV here-pūnaha/kore-pūnaha, ngā pūnaha rokiroki pūngao pākahiko, ngā panera tohatoha DC, ngā teihana turanga waea, ngā taputapu pūngao hou me ngā ara iahiko whakahaere DC ahumahi, he kōwhiringa pai rawa atu mō ngā kaiwhakauru PV, ngā kaiwhakauru pūnaha me ngā kaimahi hiko o te ao katoa. Mā te mana whakahaere kounga tino pakari me te ratonga mua-hoko me muri-hoko katoa, ka whakaratohia e YUANKY DC MCB he tiaki pono, roa hoki mō ngā pūnaha hiko DC puta noa i te ao.