Lus piav qhia luv luv:

Cov khoom ntawm S7-N yog nyob rau qib siab ntawm lub nineties nyob rau hauv lub ntiaj teb no es tsis txhob

cov laus tiam S7-N. Lawv muaj kev tiv thaiv ntawm luv luv Circuit Court thiab overload,

thiab yog siv nyob rau hauv lub teeb pom kev zoo tis system nyob rau hauv kev lag luam, kev lag luam thiab lub tsev, thiab tiv thaiv

fractional hluav taws xob motors. Thiab lawv kuj muaj ntau yam zoo ntawm qib kev tiv thaiv siab (txog

IP 20), siab tawg peev xwm, txhim khu kev qha rhiab heev, yooj yim, ntau ncej sib dhos, ntev

lub neej thiab lwm yam. Lawv tsuas yog hloov mus rau lub voj voog ntawm AC 50Hz, 230V hauv ib tus ncej, 400V hauv

ob, peb, plaub ncej rau kev tiv thaiv overload thiab luv luv Circuit Court. Meanwhile, lawv kuj yog

siv nyob rau hauv tig los yog tua hluav taws xob apparatus thiab teeb pom kev zoo Circuit Court nyob rau hauv ib txwm mob.