726 4 phase mcb products are offered for sale by suppliers on Alibaba.com, of which miniature circuit breakers accounts for 51%, circuit breakers accounts for 9%, and moulded case circuit breakers accounts for 3%.
A wide variety of 4 phase mcb options are available to you, such as c, b and d.You can also choose from home, industrial and protective 4 phase mcb,as well as from li, lsi, and lsig 4 phase mcb, and whether 4 phase mcb is white, black, or red.