Description 4 way Bus Bar Power Distribution Block Negative, a quality choice for power distribution, rated to handle 250A with a flame retardant base and poly-carbonate cover it is a reliable solution to many applications. 250A Continuous (12-48VDC) 4 x M8 terminal studs (27mm) 4 x  screw terminals Stainless Steel studs Nickel-plated brass contact plate Poly-carbonate Cover Flame retardant base (Nylon/Fiberglass) Installation hardware included Dimensions: 33.5 (W) x 168mm (L) x 53mm (H)