Maximum Voltage Rating: 300VAC/ 48VDCMaximum Continuous Amp: 250A DC/ 130A ACStud Size: 1/4"-20Designed for positive distribution or collection of AC/DC ground circuitsStainless steel studs and screws provide superior anti-corrosion abilityTin-plated copper bus rated to 250AFlame retardant ABS baseSAE threaded studs6" x 1.25" x 1.37"