Takaitaccen Bayani:

M4 jerin gyare-gyaren hali mai watsewa, yana dacewa da kewaye na AC 50/60Hz, rated insulation voltage 690 V(M4-125 500V), rated aiki ƙarfin lantarki AC 690V ko kasa , rated aiki halin yanzu 12.5-1600A, don rarraba makamashi na lantarki da kuma m yin da watse kewaye a cikin al'ada yanayin. Ana ba da ƙwanƙolin kewayawa tare da aikin kariya daga yin nauyi da gajeriyar kewayawa da rashin ƙarfi. Ƙwararrun ma'auni sun dace da daidaitattun IEC60947-2. Ƙwararrun masu haɗawa suna rufewa sau biyu (A cikin m = 250A ko sama), an saita tsarin sarrafawa na kayan haɗi tare da babban kewayawa, kuma baya buƙatar buɗe murfin mai ɗaukar hoto lokacin shigar da kayan haɗi.