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12v Bus Bar 5 Post 300A Power Distribution Block 5/16' Battery Terminal Block Stud with Cover and Wire Lugs

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$39.99

$ 16 .99 $16.99

In Stock

1.Size:M8(5/16 Inch)


About this item

  • Package Includes:300A M8 Stud Bus Bar + 4pcs 1/0 AWG 3/8" Copper Cable Lugs + 10pcs 4 AWG 3/8" Copper Cable Lugs + 14pcs 3:1 Adhesive Lined Heat Shrink Tubing.
  • Protect Cover & Nuts:Each power busbar will come with a protect cover and two nuts, which helps to shelter as much exposed area as possible to reduce the risks of accidental contact and prevent short circuit, makes the circuit safer.
  • Durable and Safe :The base of the battery terminal block is made of glass fiber reinforced nylon, the nuts and screws are made of stainless steel, and the gasket is made of copper, stable in structure. Each bus bar includes a cover to protect connections from protect against damage and corrosion. The insulating nylon base is flame retardant, giving you peace of mind when using it.
  • Easy to Install: you just need to use the screws to fix the battery terminal distribution block in their respective positions, then use wiring on the screw, tighten the nut to fix, easy to operate without complicated installation steps
  • Wide Application: This 5 post busbar is an excellent circuit collection wire Harness in the car, RV, yacht, caravan, and ship power system. Maximum amplifier per circuit: determined by the connected wires. Maximum working voltage is DC 48V & up to 300 Amps.



Steve D. Marsh
2025-08-02 12:31:13
This is very robust with five posts for connections, but it also can serve as a distribution point for other full circuits. In a pinch, you could use the smaller screws to secure smaller + and - things into the bus bars. It is a very good option for vans, boats, and solar options of all kinds.
José Hernandez Rivera
2025-07-12 18:09:36
Excelente lo estoy probando para ver la calidad
Nicholas Klein
2025-03-20 20:38:56
The only down side I see, the mounting plastic could be a little thicker/stronger.
66GTO
2025-02-27 18:00:23
Price &Quality
SoundMan73
2025-01-28 14:41:46
This is a very robust 300 Amp buss bar post kit. I got these for an upcoming solar project. I needed at least 200 Amps of protection so these meet that criteria with 100 Amps to spare! I was amazed at how large these are. Each on of the buss bars measure 8" long x 1 1/8" wide x 1 3/4" tall with caps. This comes with a pretty good assortment of accessories. The kit includes:(A)-Positive buss bar(B)-Negative buss bar(C)-Qty 14 pieces of 3:1 shrink tubing 1 1/4" long x 3/4" diameter with adhesive(D)-Qty 104 x 3/8 copper terminals(E)-Qty 4 0/1 x 3/8" terminals(F)-Qty 4 3/4" pan head wood screwsI can't wait to use this kit in my van life project. 100% recommended.
Spencer in Seattle
2024-12-17 14:09:55
I used this block to get the spaghetti of wires off my battery and relocated into a single place under the hood. the only challenge was finding a good place to bolt down the block. Has just 5 posts so count how many connections you'll need ahead of time.
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