Blue Sea MaxiBus 250 Amp Bus Bar - 12 Screw Terminal The Blue Sea MaxiBus Bus Bar is used to consolidate multiple wires or to feed multiple circuits. The raised bus provides easy access to multiple wires on a single screw or stud. Insert molded stainless steel studs eliminate the need for securing the nut and allow high torquing for excellent electrical contact. Recessed mounting holes eliminate accidental shorts to aluminum and steel mounting surfaces. The base is constructed of UL 94-V0 rated,