

ā” Reset Your Power, Rule the Road & Waves!
The Hamolar 3 Pack 300A Circuit Breaker with Manual Reset Fuse Holder offers high-capacity overload protection for 12-48V DC systems, ideal for car audio, marine, and off-road applications. Featuring a manual reset push-button that doubles as a kill switch, it prevents damage from power surges and short circuits. Built to withstand extreme temperatures and equipped with wire lugs and copper washers, this panel-mount breaker ensures a durable, professional installation and reliable performance across diverse environments.





| ASIN | B095YZN677 |
| Best Sellers Rank | #4,140 in Automotive ( See Top 100 in Automotive ) #4 in Automotive Replacement Circuit Breaker Switches |
| Brand | Hamolar |
| Circuit Breaker Type | Standard |
| Current Rating | 300 Amps |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,772) |
| Date First Available | May 27, 2021 |
| Item Weight | 3.88 ounces |
| Item model number | CB5-300A |
| Manufacturer | Hamolar |
| Manufacturer Part Number | CB5-300A |
| Mounting Type | Panel Mount |
| Number Of Poles | 1 |
| Product Dimensions | 1.7"D x 1.93"W x 1.7"H |
| UPC | 721703426408 |
| Voltage | 12 Volts, 24 Volts |
E**T
Using in kawasaki mule
Works great
D**D
Much better alternative to fuses
Great product and significantly better and easier than dealing with traditional fuse holders.
B**C
Worth the money! Great value
Theyāve held up well and really like the disconnect feature, easy to install. Definitely recommend.
H**E
Good price, good product
These breakers work as designed and promised, but will fatigue and crack over time, faster depending on your application. In my case, I use them to shut off power to a winch on a truck and it's mounted in a hostile environment under my hood. I get about a year out of each one.
N**A
Not bad
Does exactly what is described.
C**S
100A trip rating is right on
I have 2 of these on my small RV type solar array and 2 DCM 110AH batteries one on each battery - hooked to a 2000W operating inverter. Tried to run a 1 HP air compressor on it . If the compressor tank was at zero to start, and the motor warm, the start surge on the motor was just below the 4000W peak that the inverter can do momentarily - but with a restart on it, it pulls hard enough that it tripped 1 and then both as it pulled over the 100A input limit. Turns out on surge, I was trying to pull nearly 400A through them (and way more than the 4000W output). I knew, I tried, and it tripped the breakers. I had an amp clamp type meter on the 12v circuit and they each tripped right at setting. Made me very happy to know that they worked correctly.
T**R
Just as described
Just as described, packaged well and met expectations
S**W
three pack 100 amp easy reset circuit breaker
came with pretty much everything you need seems to be high quality very convenient easy to see what's going on and work with. excellent!
E**R
works great
D**K
First order got cancelled and refunded, second time delivered before expected date. Product just put into use. Will update usage after 3 months.
A**.
Me encanta la calidad y sobre todo su costo La calidad supera el costo
D**E
Beaux disjoncteurs mais pas encore essayƩ
B**N
These are good and work without problems.
Trustpilot
2 weeks ago
2 days ago