Best Black Distribution Connecting Blocks in 2026

PARAMETER-----10 stainless steel #8 terminal screws,3*1/4" studs.

WHAT YOU GET-----Cover attaches with nylon nuts to the two outside studs to protect against accidental short circuits. Come with 1/4” and #8 suitable insulated ring terminals.No need to find the small rings anymore.

RANGE FOR USE---- Max voltage: 48VDC. Max continuous amperage: 150ADC. Max intermittent: 20 A per connection (less than 1 minute).

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 ★ - 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.

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

Material: the base is made of hard plastic, the circuit board is made of copper, stainless steel terminal, PC protective sleeve, durable.

Model: Red base, M6 terminal stud x4, M4 screw terminal x 6.

Features: Maximum voltage: 300V AC, 48V DC. Maximum continuous amperage: 130A AC, 150A DC.

【1 x (0/4) AWG IN, 2x (4/8)AWG OUT】Our power distribution block adopts input to accept 1/0 or 4 wire, and output to accept 4 or 8 wire, making your system wiring easier, which is very suitable for car audio installation and amplifier wiring.

【Deep Groove Hidden Protection】The power distribution block with a deep groove design can well protect the wiring, effectively prevent the wiring from being exposed to components or other objects that may cause system failure, and make the wiring more durable.

【Easy to Install】The screw-in cable clamp and the impact-resistant plastic cover design make the power distribution block for car audio splitter very easy to install. You only need to connect the cable and cover the plastic cover.

Ideal for Automotive, Solar and Marine Use - These busbar blocks have a max continuous rating of 180 amps @ 12VDC total. Each connection is rated for 15 amps continuously with a max intermittent rating of 20 amps. Max voltage of 48VDC. Ideal for automotive, car audio, solar, and marine use

Includes Both Red and Black Connectors - With these 2 packs of 12 terminal power distribution blocks, you will have plenty of connection points for both positive and negative wiring terminals Wire up to a dozen accessories with these 2 packs of power distribution bus bars

Anti-Corrosive & Even Consistent Flow - Our bus bars are anti-corrosive and constructed to handle high currents. The base material is glass filled nylon and a 1/4” stainless steel hex nut and lock washer. Includes a cover and a terminal boot to insulate and protect connections for damage and corrosion

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.

500A Bus Bar Heavy Duty Module Design Power Distribution Block：The Power Distribution Block Bus Bar Provides several large gauge connections for running a dedicated ground to the battery and offers more minor gauge connections for lower voltage, Continuous Rating Voltage Max to 500A, 4 Terminal Studs 2 Screw Terminals, 300V AC / 48V DC Nickel Plated Brass made, The power distribution block is useful for customizing vehicles or relocating batteries, Applicable to car, trucks, RVs, marine, boats and other industrial equipment.

8 detachable windows & Designed to Withstand Rain and Dust: The power distribution block designed to withstand rain and dust,resist the air and seawater erosion,The power distribution block has Removable windows for unobstructed wiring, Design of 8 detachable windows and the number of windows can be disassembled according to user needs for unobstructed wiring, with the high quality insulated rear cover, Waterproof & Dustproof.

High Quality & Reliable quality: The Bus Material of Power Distribution Block Bus Bar is built from quality Nickel Plated Brass materials for durability, engineered for reliable performance that ensures the good electric conduct,The base Material: UL94-VO Rated,Glass Reinforced Thermoplastics ensures mechanical strength and durability.