

⚡ Power up with confidence—where safety meets seamless control!
The Blue Sea Systems 7187 285 Series Thermal Circuit Breaker is a robust 48V DC, 100A surface mount breaker that integrates switching and circuit protection into one compact device. Designed for medium-duty applications like windlasses and electric winches, it features a trip-free mechanism that prevents manual override during faults, ignition protection for safe engine room installation, and terminal caps to prevent shorts. With easy installation and a 5-year warranty, it’s a reliable choice for professionals demanding both performance and peace of mind.





| ASIN | B0051P01BW |
| Batteries | 1 Unknown batteries required. |
| Best Sellers Rank | #26,874 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #7 in Thermal Circuit Breakers |
| Brand | Blue Sea Systems |
| Circuit Breaker Type | Standard |
| Current Rating | 100 Amps |
| Date First Available | April 26, 2011 |
| Global Trade Identification Number | 00632085071875 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.16 ounces |
| Item model number | 7187 |
| Manufacturer | Blue Sea Systems |
| Mounting Type | Surface Mount |
| National Stock Number | 5925-01-617-2055 |
| Number Of Poles | 1 |
| Product Dimensions | 8 x 5 x 3 inches |
| UPC | 632085071875 |
| Voltage | 48 Volts |
J**.
Love these.
Works great. Love that you can use it as a switch.
A**Y
Great Product arrived as agreed
Worked great! Would order again
R**E
Marine Breaker
Well made. Count on Blue sea
T**T
Works as Switch Too
Protects my battery wiring for my homemade power box. It works as switch too. Very compact. Had to order socket head cap screws to screw into plywood.
J**T
Solid unit!
This is a quality product that has proven true to its rating. Stay away from cheap/overrated Chinese junk when trying to protect your valuable electrical system. Case in point: That dinky little Red Wolf breaker (red and black) claimed to be 300 amps, while it's good for no more than 75A at most. It's also ⅓ the size of the Buss/BlueSea 200A (yellow and black) as you can see, and I'd say only a quarter of the weight. I repurposed the dinky one to handle disconnect duty for my 48V solar panels when the Buss/BlueSea took over the much heavier battery duty. After my educational adventure with chinese BS, I've used only BlueSeas switches, breakers and panels (both DC and 120VAC systems) ever since. They're expensive, but totally worth the safety and avoidance of electrical gremlins!
A**O
great brand great product, but...
this is a great quality, reliable product. However, as Ive been running into this more and more, Amazon's quality control needs to do better! Not only did I get a USED product (paid for brand new!) Package was cut and the actual circuit breaker body itself was filed or sanded down down to fit someone else's application. I was really pissed off as I purchased two different ones just in case. Unfortunately for me, the "altered" one was the one I needed. After having to pay return shipping for the other one, I wasn't about to lose another $20 in shipping fees for something that shouldn't have occurred to begin with! Just a heads up to everyone, this has been happening more and more! The inconvenience of having to return certain items needed to complete a time sensitive project for me, outweighed my being pissed off and jumping through hoops to correct this issue. If this is the cost of convenience, maybe hire more PEOPLE to do a automated machine jobs...
T**.
Trolling motor circuit breaker
Nice trolling motor circuit breaker. Easy to install and been working great for a year now.
G**S
Fast service
Great
A**R
Expensive, but not when compared to the quality, reputation and reassurance of Bluesea products
S**D
I bought this for the Motorhome to isolate an Inverter. It replaced a cheap Chinese made product - which lasted about 20 on/off cycles. The difference in quality is night and day! Ok you pay more but it actually does the job!!!
I**M
Präzise, weil es von Bussmann ist. Schaltet nach Spezifikationen richtig ab.
P**E
A**Y
These fuses work well but are under rated
Trustpilot
1 month ago
5 days ago