Mashigin bas mai sassauƙa, wanda kuma ake kiransa da haɗin haɗin ginin mashaya bas, mai haɗin fadada mashaya, ya haɗa da madaidaicin bus ɗin bas ɗin jan ƙarfe, mashaya ɗin bas ɗin jan ƙarfe, mashaya mai sassauƙan bus ɗin jan ƙarfe, braid m busbar bus ɗin bus ɗin jan ƙarfe mai sarƙaƙƙiya waya m busbar.Wani nau'i ne na sassauƙan haɗin haɗin kai wanda ake amfani da shi don rama nakasar sandar bas da nakasar girgiza da canje-canjen zafin jiki ke haifarwa.Ana amfani da shi a cikin fakitin baturi ko haɗin wutar lantarki tsakanin sandunan bas ɗin da aka liƙa.