Alleviates multiple connections to battery terminals by allowing you to connect various power accessories Stainless steel #304 studs allow for excellent electrical contact Bus material made of tin-plated solid copper for maximum conductivity and resistance to corrosion Base and cover material is made of polycarbonate Continuous amperage of 130-amps ac, 150-amps dc Maximum voltage rating 300-volts ac, 48-volts dc. BUSBAR 4 POSITION MSE