Ua ib lub chaw tsim khoom siv hluav taws xob qis-voltage nrog 20 xyoo ntawm kev paub txog kev lag luam, YUANKY nthuav qhia DC S7 SeriesLub Hnub Ci DC Miniature Circuit Breaker(MCB), ib qho kev daws teeb meem ua tau zoo uas tsim los rau kev tiv thaiv thiab cais DC circuit, zoo rau kev teeb tsa photovoltaic (PV) lub hnub ci. Muaj nyob rau hauv 1P txog 4P configurations, nws txhawb nqa cov voltages ntsuas los ntawm DC250V txog 1000V, ntsuas tam sim no los ntawm 6A txog 50A, thiab C-hom tripping yam ntxwv (7In-15In). Nws muab 6kA rated breaking peev xwm thiab 15kA limited short-circuit breaking peev xwm ntawm 250VDC, nrog rau lub sijhawm teb sai heev ≤4ms. Nws cov qauv tsim tshiab tsis-polarized yog qhov tseem ceeb, tshem tawm qhov sib txawv polarity thaum lub sijhawm wiring, txuag lub sijhawm teeb tsa thiab zam kev ua yuam kev wiring.

Lub DC MCB no ua haujlwm siv ob txoj kev tiv thaiv los daws cov teeb meem ntawm DC system. Rau kev tiv thaiv kev thauj khoom ntau dhau, ib daim hlau bimetallic uas ua rau hauv yuav khoov nrog cua sov kom ua rau lub tshuab tripping, txiav lub voj voog kom du thaum muaj kev thauj khoom ntau dhau los tiv thaiv kev puas tsuaj los ntawm cov khoom siv thermal. Rau cov teeb meem luv luv, lub tshuab hluav taws xob siab yuav ua haujlwm tam sim ntawd, cuam tshuam cov teeb meem tam sim ntawd hauv ≤4ms kom tsis txhob muaj kev phom sij los ntawm DC arcs. Nruab nrog lub tshuab tua hluav taws xob DC arc, nws daws qhov teeb meem ntawm kev puas tsuaj arc hauv DC circuits yam tsis muaj qhov chaw hla xoom, ua kom muaj kev nyab xeeb thiab txhim khu kev qha. Tus qauv DIN rail mounting ua rau yooj yim, ceev installation hauv cov txee faib khoom txheem.

Ua raws li IEC 60947-1/2 tus qauv thoob ntiaj teb, cov khoom no muaj daim ntawv pov thawj CE thiab SEMKO-tso tawm CB cov ntawv qhia kev xeem, ua tau raws li cov kev cai nkag mus rau kev lag luam thoob ntiaj teb. Nws ua haujlwm ruaj khov hauv -5 ℃ txog + 60 ℃, hloov kho rau ntau yam kev ua haujlwm hnyav. Siv dav hauv cov kab ke PV / off-grid, cov roj teeb cia hluav taws xob, DC faib vaj huam sib luag, chaw nres tsheb hauv xov tooj, cov khoom siv hluav taws xob tshiab thiab cov voj voog tswj DC kev lag luam, nws yog qhov kev xaiv zoo tshaj plaws rau cov neeg teeb tsa PV, cov neeg sib koom ua ke thiab cov neeg cog lus hluav taws xob thoob ntiaj teb. Txhawb nqa los ntawm kev tswj hwm zoo thiab kev pabcuam ua ntej muag thiab tom qab muag tag nrho, YUANKY DC MCB muab kev tiv thaiv ntev thiab ntseeg siab rau DC hluav taws xob thoob ntiaj teb.