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⚡ Stay powered, stay protected — the breaker that never quits!
The T Tocas E9 30 Amp Circuit Breaker is a compact, surface-mount device designed for 12V to 72V DC systems. Featuring a manual reset switch and IP67 waterproof rating, it offers reliable protection for auxiliary circuits in trucks, RVs, buses, and marine applications. Built with UL-rated thermoplastic housing and meeting key automotive safety standards, it ensures durable, ignition-protected performance in demanding environments.












| ASIN | B07D7T3ZR5 |
| Best Sellers Rank | #3,166 in Automotive ( See Top 100 in Automotive ) #3 in Automotive Replacement Circuit Breaker Switches |
| Brand Name | T Tocas |
| Circuit Breaker Type | Standard |
| Current Rating | 30 Amps |
| Customer Reviews | 4.6 4.6 out of 5 stars (420) |
| Included Components | 1 Pack 30A Circuit Breaker Manual Reset |
| Item Dimensions D x W x H | 1.5"D x 1.9"W x 2.91"H |
| Item Weight | 0.23 Pounds |
| Manufacturer | T Tocas |
| Model | BBCB594-30 |
| Mounting Type | Surface Mount |
| Number of Poles | 1 |
| Part Number | BBCB594-30 |
| Unit Count | 1.0 Count |
| Voltage | 48 Volts |
| Warranty Description | 6 Month Warranty Against Manufacturer Defects |
T**Y
Decent quality
Installed several of these so far on our work trucks to supply power to the back for power tongue jacks. So far they seem good and have had no issues.
A**7
Well made product
I am using this breaker in a mobile install for Ham radio equipment. It appears to be good quality and the install was super straight forward. I like that you can push the button and disconnect power when necessary and if power is tripped it is very easy to reset. Hopefully I won't be testing to see just how water proof this is but it should do just fine short of submerging it. Recommended product.
F**R
I wish everything were built this solid
Gets the job done, quality build, not cheap junk. Used as part of a solar system. Can be manually triggered to top off batteries when needed. 12 - 48V fits a variety of battery configurations.
F**N
Nice design, but a little hinky
Had problems with the breaker not making a solid connection. I closed the circuit and got greatly reduced voltage. Opened the circuit and re-closed it a little more "briskly" and it made a good connection. I like the design and the install is very easy, but I may look for a replacement. I wish I could be confident that it is making a good connection everytime.
D**N
great product
I'm in the exterior cleaning business and this is a necessary component for hooking up electric to various equipment. Because of this the chemicals I use are highly corrosive in their pure form before blending for use. I do have to replace this once a year. With that said, if it weren't for the chems used nearby this unit, it would last 5 times longer. Great product and received very fast.
B**E
Better than a fuse
I don't use this in a wet area so I can't really say how well it would do in water, it seems well made. I got this to try in a car audio system and it works good and should I blow it it will be better than trying to locate a fuse, I can just reset it and go on, and if it proves to be a good product I will buy more in the future for car audio builds.
R**E
Great quality
After blowing through 4 other brands this one is a clear winner in terms of quality. I use it for wind generator breakers on my boat so a tough environment and erratic voltage. Handles well!
H**R
Solid feel, just like the $60 ones
Material feels solid, lever and push button have a good feel and audible click. Feels just like a 60 dollar unit. Tried a couple other amazon ones and this was the best.
J**N
I’m using this breaker between my charge controller output to battery. Works great, no issues with quality. Solar charge system works well.
Z**N
Installe entre panneaux solaires et régulateur
T**R
Looks great
F**R
Used it for my DC fridge as a breaker and a shut off when not in use.. Works flawlessly.. Thanks
G**T
good product easy to install
Trustpilot
2 months ago
1 week ago