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The Joinfworld 400A Bus Bar Power Distribution Block is a heavy-duty 12V solution designed for marine, automotive, RV, and solar systems. Featuring an 8mm thick copper bus bar, four 3/8" stainless steel terminal studs, and a protective cover, it supports up to 400A current at 48V DC or 300V AC. Its secure nylon base and included nuts ensure stable, safe, and tidy wiring, making it an essential upgrade for professionals demanding reliability and clean circuit management.
| ASIN | B0G2LGXVJ8 |
| Best Sellers Rank | 29,149 in DIY & Tools ( See Top 100 in DIY & Tools ) 22 in Terminal Blocks (DIY & Tools) |
| Brand | Joinfworld |
| Connector Type | Screw |
| Connector type | Screw |
| Country Of Origin | China |
| Current Rating | 400 Amps |
| Current rating | 400 Amps |
| Customer Reviews | 4.5 out of 5 stars 71 Reviews |
| Included Components | one positive bus bar and one ground bus bar |
| Item Dimensions W x H | 16.5W x 4.9H centimetres |
| Manufacturer | Joinfworld |
| Manufacturer Part Number | BB400-T4M10S3-C-BR-2 |
| Model Number | B0G2LGXVJ8 |
| Number Of Contacts | 7 |
| Number Of Poles | 7 |
| Number of Positions | 7 |
| Number of contacts | 7 |
| Number of poles | 7 |
| Product dimensions | 16.5W x 4.9H centimetres |
| Specification Met | CE |
| Unit Count | 1.0 count |
I**S
All good
Very good
M**C
No complaints
Only used the positive bar so far .. seems like good quality.. exactly what I needed for multiple power pickups on my car
R**A
Great 400 amp buss bar set
The Joinfworld Heavy Duty 400A Bus Bar is a great heavy duty buss bar but it is a little expensive compared to other option. Honestly it probably worth 5 stars but I’m going to give it 4 out of 5 just for pricing .
R**B
Product ok, packaging not ok.
Product appears to be ok, but packaging is not. 1st set I ordered had to be sent back due to damage (caused by poor packaging) and the 2nd set made it with no product damage but inner packaging was destroyed.. Unless these are packaged correctly I would not order them again..
T**.
Returned the first one
Returned the first one, studs broke inside and couldn’t tighten down. Haven’t had time to install the replacement
H**D
good bussbar
nice heavy bussbar for your dc power project used on a 10kwh lifepo4 battery bank
Trustpilot
1 month ago
2 weeks ago