






⚡ Connect with confidence — power your projects like a pro!
The DaierTek Power Distribution Block is a robust 300A, 12V bus bar featuring six 5/16" (M8) terminal posts with a protective polycarbonate cover. Designed with tin-plated copper and stainless steel hardware, it supports up to 48V DC and 300V AC, making it ideal for automotive, marine, truck, and solar power systems. Its compact size and durable materials ensure reliable, corrosion-resistant connections in demanding environments.












| ASIN | B0D4YJVGCQ |
| Best Sellers Rank | #44,972 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #56 in Ground Circuit Terminal Blocks |
| Brand | DAIERTEK |
| Color | 300A |
| Connector Type | Screw |
| Current Rating | 300 Amps |
| Customer Reviews | 4.7 4.7 out of 5 stars (500) |
| Date First Available | May 23, 2024 |
| Item Pitch | 0.31 Inches |
| Item Weight | 1.61 pounds |
| Item model number | BB300-T6M8-C-RB |
| Manufacturer | DaierTek |
| Material | Nylon, Polycarbonate (PC) |
| Mounting Type | PCB Mount |
| Number Of Contacts | 6 |
| Number Of Poles | 6 |
| Product Dimensions | 6.49"W x 1.51"H |
| Specification Met | True |
| Voltage | 12 Volts |
A**R
Great product
Excellent got boat electronics! Easy to install
R**9
Very sturdy
Very sturdy, works well so far
T**Y
Bus Bar
These are very well made bus bars. The nuts are self locking and does not require a self locking washers. Also, the way they are made, you can clock the wire about any directions and are not restricted by the top cover.
T**D
Justo lo necesario
Excelente producto
J**H
Works great for my LifePo4 batteries
No issues to speak of. I used to aggregate my two(2) LifePo4 batteries together in my toy hauler using 2/0 AWG wire. So far, so good!
B**E
Build nice.
Looks like it's built pretty good.
A**A
Good for a simple multi battery system
Heavy duty and used it for combining multiple batteries charged by a solar array. Used it for connecting 4-12V batteries in parallel, a single charge controller all into a 1000W inverter for a coy pond. (6 connections) Used a larger version for the EG6000, combining 2 48V batteries with the ability to expand to 3. That system has a single input/output with a single all included charge controller/inverter so only need 4 ports for three batteries.
L**Y
Worked Great
Good quality. They had enough room between between bolts to accommodate a 1/0 wire lug when other brands did not.
F**D
I used this DaierTek 12V bus bar for my automotive setup, and it made wiring way easier and a lot cleaner. The build quality is solid — the studs feel sturdy, and the cover fits nicely to keep everything safe and organized. It handles both positive and negative connections perfectly and gives the whole setup a professional look. Works great for cars, boats, or solar systems. Definitely worth it if you want to tidy up your wiring and make future connections simple.
N**H
Works great
F**E
Nice product and gives a professional finish to my project
J**E
J’ai utiliser pour libérer les connections de batterie
A**I
Well made, easy to use. Everything fits nicely.
Trustpilot
5 days ago
2 weeks ago