Tin plated copper bus bar with 10 screw terminals and two larger 1/4" studs. This busbar is rated for AC up to 300 Volts and for DC up to 48 Volts. There are two optional covers available, one is a snap on plastic cover and one is a full enclosure. Reinforced polycarbonate base and tin plated copper bus with stainless steel studs, nuts, washers and screws make this suitable for marine applications. This is the improved model bus bar and has the following features: