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Bus Bar 12V 250A Power Distribution Block, 4 x 5/16' (M8) Stainless Steel Terminal Studs Busbar for Battery, Solar, RV, Boat, Automotive - Positive & Negative (Pair, Red & Black)

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$15.99

$ 6 .99 $6.99

In Stock

About this item

  • 【Premium 3.5 MM Tinned Copper Plates】 - 50% thicker than standard 2-3mm busbars for better 250A/12V current handling with lower heat generation; 3.5MM thickened copper plates, enabling wider cable compatibility and superior conductivity compared to standard bus bars.
  • 【Heavy-Duty 3/8" Stud Terminals】 - Features 4 x 5/16" stud terminals and 6 x #8 screw terminals to accommodate large-size wire connectors securely
  • 【250A High-Current Capacity】** - Rated for 250A continuous current in 12V circuits, with maximum voltage handling up to 48V for versatile power distribution needs.
  • 【Complete Safety Protection】 - A removable Nylon cover keeps metal components from making contact with anything. The insulated nylon base is flame-retardant.Reinforced M8 mounting posts with screws secure in marine/RV/off-road environments.
  • 【Corrosion-Resistant & Wide Compatibility】- Tinned copper plates and stainless steel hardware resist rust in humid/salty environments.Perfect for 12V/24V/48V systems in automotive, solar, marine, and RV applications.


Tinned copper plates and stainless steel hardware resist rust in humid/salty environments.Perfect for 12V/24V/48V systems in automotive, solar, marine, and RV applications.


Peter C
Reviewed in the United States on May 9, 2025
Those bus bars are massive, heavy duty steel, plastic is sold but terminals are very exposed. Check the size of those bus bars before you buy them, they are over 6” lg.
LauraJK
Reviewed in the United States on May 14, 2025
Terminal strips like these are a must for creating order out of chaos in our new to us Mainship 34 power boat! The previous owners were . . . somewhat less well versed in how to make repairs/modifications to the electrical system on the boat, and the electrical system is in need of some general housekeeping and rearrangement. This terminal blocks will do the trick. Each block has 4 larger terminals (studs), and 5 smaller screw on spaces to secure wiring. Great product for a fair price!
Dennis
Reviewed in the United States on May 14, 2025
These are thick and sturdy. They are solid and allow for positive feeling connections. Easy to use and work like they should.
ihaveastory6132onutube
Reviewed in the United States on May 14, 2025
This product deserves better reviews than those given. I have many bus bars as I live completely on solar and these make great connection points! These are big, thick, solid bus bars. To address the reviews currently stating the gap between the cover exposing the terminals, let me ask, where would you direct the wire if it was completely sealed? Big lugs accommodate large wire which require access! Would you prefer completely enclosed, then idk dremel out holes to accommodate each wire? I like how there have connections for both big and small gauge wire and not over/undersized connections being sloppy. The price is very reasonable for the product received and I have no complaints. To address the legs on the cover, these are plastic nuts holding down a plastic cover. You dont crank these nuts down and squish the cover. I dont do more than hand tight. Its just a cover, not a structural piece.
Matt
Reviewed in the United States on May 13, 2025
Decent bus bar, not anything I would trust in an industrial setting, but not bad for a hobbyist. The cover is a little flimsy but they're more or less there as just a physical barrier to keep stuff from touching it or rubbing up against it, not to handle any kind of weight or serious impact.The bus bar itself is actually a tinned copper bar, not steel which I've seen companies use to save money. This bus bar is big though, it's not something small for like LED strips. But more like a battery bank or solar charging bank.
Kevindt
Reviewed in the United States on May 11, 2025
These are big (think 6" apiece) and solid metal bus bars capable of carrying high currents. The choice of hardware is a little odd - metric for the screws, imperial for the bolts - but it works.The bus bars themselves are strong and secure well to a surface, but the covers are flimsy and rely on very thin molded plastic legs to keep them up against the downward pressure from the plastic nuts holding them on. There is nothing for the plastic nuts to tighten against, other than these weak legs, which bend. That increases the risk for them coming off and completely exposing the bare terminals with any significant vibration or thermal stress. Either a column molded under the top around the bolts, or a short sleeve over them would make this much more secure.In the interim, I fixed these concerns by adding short sleeves over the bolts, taking the pressure off of those legs and compressing the top between the sleeves and the plastic nuts.The covers also don't come low enough to fully cover the exposed bus bar or connection bolts, leaving a risk for a conductive tool to fall and contact them if mounted vertically. I applied some thick insulation tape over those open areas.These really need a complete redesign of the covers to gain the extra stars.
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