Mapulagi a mafakitaleAmagwiritsidwa ntchito makamaka polumikiza magetsi m'malo opangira mafakitale, kuti akwaniritse kulumikizana kotetezeka, kokhazikika komanso mwachangu pakati pa zida ndi magwero amagetsi. Amagwiritsidwa ntchito kwambiri pazochitika monga zida zamafakitale, kupanga makina, malo omanga, makina olumikizira, mabokosi ogawa, zombo ndi magetsi akunja kwakanthawi. Ntchito yake yayikulu ndikuwonjezera chitetezo cha kugwiritsa ntchito magetsi ndikuletsa mapulagi wamba kuti asakhudze bwino, asagwe kapena kugwa m'malo omwe ali ndi mphamvu yamagetsi yamphamvu, chinyezi, fumbi kapena kugwedezeka. Mapulagi amafakitale nthawi zambiri amakhala ndi kukana madzi, kukana fumbi, kukana kutentha kwambiri, komanso kukana kugwedezeka. Magiredi odziwika bwino oteteza ndi IP44 ndi IP67.

Ponena za mtengo, mapulagi a mafakitale amasiyana kwambiri kutengera mtundu, zinthu, mulingo wamakono (16A/32A/63A/125A), mulingo wotetezera, komanso ngati ali ndi kapangidwe kotseka kapena ayi. Mtengo wa pulagi wamba wa mafakitale wa 16A nthawi zambiri umakhala pafupifupi 10 mpaka 30 yuan. Mafotokozedwe a 32A ndi pafupifupi 20 mpaka 60 yuan. Mitundu yolemera ya 63A ndi kupitirira apo imatha kugula 80 mpaka 300 yuan kapena kuposerapo. Mitengo ya mitundu yochokera kunja (monga Schneider, ABB, ndi zina zotero) nthawi zambiri imakhala yowirikiza kawiri mpaka kasanu kuposa yamakampani apakhomo.

Ponseponse, kusankha mapulagi a mafakitale kuyenera kutengera kuweruza kwathunthu kwa magetsi omwe akugwiritsidwa ntchito, momwe chilengedwe chilili komanso zofunikira pachitetezo, m'malo mongoyang'ana mtengo.