1. Kev xaiv ntawm hom DC contactor: Hom DC contactor yuav tsum ua raws li hom kev thauj khoom tam sim no thiab qhov nyhav ntawm qhov kev xaiv los xaiv, uas yog, AC load lossis DC load, yog lub teeb load, kev thauj khoom loj lossis hnyav hnyav.
2. DC contactor lub ntsiab lus tseem ceeb tam sim no: qhov sib npaug ntawm tus tiv tauj ntawm tus DC contactor tuaj yeem raug xam raws li cov qauv siv tshuaj, IN IN main contact ≥ PN tsav / (1 ~ 1.4) UN lub cev, yog lub DC contactor tswj tsav pib, braking los yog thim rov qab yog nquag, feem ntau qhov sib npaug tam sim no ntawm kev sib cuag tseem ceeb ntawm contactor yuav raug txo kom qis siv qis dua.
3. Txoj Haujlwm Kev Xwm Zaus Sijhawm: Kev khiav haujlwm ntau zaus yog hais txog cov xov tooj qhib thiab kaw ntawm cov neeg nyob ib teev. Thaum tawg ziag no loj thiab lub zaus ntau dhau lawm, nws yuav ua rau kom muaj kev sib tsham hla thiab ua rau weld. Yog qhov kev khiav hauj lwm ntau tshaj qhov teev nqi, nws yuav tsum xaiv tus dc contactor nrog tus nqi siab tshaj tam sim no.
4. Kev xaiv ntawm kev ntsuas hluav taws xob muaj peev xwm: Kev ntsuas cov cua txias tsis yog sib npaug zos rau qhov sib npaug ntawm qhov sib npaug.