MCCB yas rooj plaub Circuit Court breaker, huab cua raws li lub arc extinguishing nruab nrab, tuaj yeem cuam tshuam qhov txhaum tam sim no;
MCB me me Circuit Court breaker, cua yog siv los ua arc extinguishing nruab nrab, uas tuaj yeem cuam tshuam qhov txhaum tam sim no;
ACB cua Circuit Court breaker, tseem hu ua thav duab Circuit Court breaker, cua yog siv los ua arc extinguishing nruab nrab, uas tuaj yeem cuam tshuam qhov txhaum tam sim no;
VCB nqus Circuit Court breaker, nqus arc extinguishing, tuaj yeem cuam tshuam qhov tam sim no;
VCS lub tshuab nqus tsev cais tawm, siv rau kev sib cais cov pob txha, tsis tuaj yeem cuam tshuam kev thauj khoom tam sim no thiab qhov txhaum tam sim no; ua kom siv tau zoo tshaj plaws thiab tsis txhob pov tseg.