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2862 mcb 4p 40a products are offered for sale by suppliers on Alibaba.com, of which miniature circuit breakers accounts for 78%, circuit breakers accounts for 9%, and moulded case circuit breakers accounts for 1%. A wide variety of mcb 4p 40a options are available to you, such as c, b and d.You can also choose from home, industrial and protective mcb 4p 40a,as well as from li, lsi, and lsig mcb 4p 40a, and whether mcb 4p 40a is white, black, or red.