Best Black Distribution Connecting Blocks in 2026

Ideal for Automotive, Solar and Marine Use - Our 250 AMP 4-post power distribution block busbar is ideal for automotive, car audio, solar, and marine use. Whether you need to consolidate, distribute, or protect your electrical system, our bus bars are excellent for managing wires and distributing power.

Includes Both Red and Black Connectors - With these 2 packs of 4 post power distribution blocks, you will have plenty of connection points for both positive and negative wiring terminals with 5/16" holes. The 4-way bus wiring block will make setting up your electrical systems quick, neat, and easy.

Anti-Corrosive & Even Consistent Flow - Our bus bars 12v are anti-corrosive and constructed to handle high currents. The nickel-plated brass contact plate ensures even and consistent flow and stability. Wire up to 4 accessories. Each bus bar terminal block includes a cover to protect connections from damage and corrosion.

★ Product ★ - A pair of 12V power distribution block, includes a red positive power distribution block and a black negative power distribution block.

★ 250A Rating ★ - The battery distribution block rated 250A when work in 12v circuit, and the battery terminal block can handle MAX 48V.

★ 5/16" Stud Terminal ★ - The battery bus bar terminal block includes 4 x 5/16" studs terminal and 3 x #8 screw terminals, which makes the 12V junction block able to accept large size terminal connectors and wires.

Features: Marine bus bar junction block 12v, these busbars will come in pairs, include one positive bus bar (red one) and one negative bus bar (black one).

Rating: Max voltage: 300V AC, 48V DC. Max continuous amperage: 130A AC, 150A DC. This battery distribution block will be suitable for both AC and DC systems.

Terminals: Each battery bus bar 12v includes - M8 (5/16") terminal studs x 4 and M4 (#8) screw terminals x 6, two power bus bars in the package - one positive bus bar and one ground bus bar.

【Product Name】- 12v power distribution block, these battery distribution blocks will come in pairs, includes one positive distribution block (red one) and one ground distribution block (black one).

【Terminals & Rating】- Each 12v distribution block includes - 5 x M8 (5/16") terminal studs. This battery terminal block can handle voltage @ Max 300V AC, 48V DC, and continous amperage @ Max 130A AC, 150A DC.

【Round Corner Base】 - The 12v bus bar terminal block is unique round corner base design, which makes the battery bus bar unique and special, looks more extraordinary compared with others.

Essential Parameter: 4 x 5/16" studs, size 6.6" L x 3.1" W x 1.7" H, maximum operating voltage is 48V DC, rated current of the entire block is 250A, rated current of each stud is 62.5A

Quality and Sturdy Material: the terminal blocks are made of zinc alloy and brass with smooth surface, featuring good electrical conductivity, corrosion and wear resistance, also including a removable cover to protect the connection

Red and Black Pair Power Distribution Block: the terminal block has enough connection points for positive and negative terminals with 5/16" holes, 4 post bus block will make your electrical system run faster, and make your wires look orderly

25Amp 240V 2x4 position terminal block distribution module. Support for multiple module extension connections. Maximum Voltage: 240V, Maximum Current Rating 25A(Single circuit branch current less than 8A).

Input terminals(+,-): pitch: 5.0mm/0.2", wire size 24~12 AWG, stripping length 8mm, Metric M3 slotted screw.

Output terminals: Pitch 5.0mm/0.2", Wire range 24AWG ~ 12AWG.