A pair of 12v power distribution block, includes a positive power distribution block and a negative power distribution block. The battery distribution block rated 250A when work in 12v supplier circuit, and the battery terminal block can handle MAX 48v source power. The battery bus bar terminal block includes 4 x 3/8 inch stud terminal and 3 x #8 screw terminal, which makes the 12v bus bar be able to accept large size terminal connectors and wires. Each power bus bar will come with a protect cover and two nuts, which helps to shelter as much exposed area as possible to reudeces the risks of accidental contact and prevent short circuit, makes the circuit safer. The 12 volt bus bar with cover aims to make the wiring of circuit become neat and tidy, preventing mess harness from causing electric short circuit, suitable for automotive, car, truck, marine, boat, solar wiring. Voltage Max 48V DC Number of Terminal Studs 4 x 3/8 inch (M10) Stud Terminal Number of Terminal Screws 3 x #8 (M4) Screw Terminal Max Continuous Current 250 AMP @ 12V Positive Bus Bar - Red, Negative Bus Bar - Black Material: plastic colour: black+red Package Contents: 1 x Positive Power Distribution Block 1 x Ground Power Distribution Block 4 x Mounting Screws Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.