Kev nqis peev hauv 120A qhov hluav taws xob siab tam sim no txhais tau tias kev nqis peev hauv kev ua tau zoo thiab tsim khoom. Nws qhov kev ntsuam xyuas siab tam sim no txo qis zog poob thiab txhim kho tag nrho cov kev ua tau zoo ntawm cov khoom siv sib txuas, ua rau muaj kev tsim khoom ntau ntxiv thiab txo cov nqi khiav lag luam. Tsis tas li ntawd, nws yooj yim rau nruab thiab txij nkawm-dawb tsim txuag lub sijhawm thiab kev siv zog, tso cai rau koj tsom mus rau cov haujlwm tseem ceeb ntawm kev lag luam. Hauv cov ntsiab lus, 120A high-tam sim no receptacle nrog hexagonal interface thiab stud sib txuas yog qhov kev ua si hloov pauv rau cov ntawv thov tam sim no. Nws cov yam ntxwv zoo, suav nrog lub peev xwm tam sim no, ntau yam, kev ntsuas kev nyab xeeb thiab kev ua haujlwm zoo, ua rau nws zoo tagnrho rau ntau yam kev lag luam. Txhim kho koj lub zog txuas hnub no nrog lub qhov hluav taws xob tshiab no thiab paub qhov txawv nws tuaj yeem ua rau koj txoj haujlwm.