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⚡ Stay powered, stay protected — the breaker that never quits!
The Blue Sea Systems 7189 285 Series Thermal Circuit Breaker is a surface-mount, 48V DC, 150A breaker designed for reliable circuit protection and switching. It features a trip-free mechanism preventing manual override during faults, is ignition protected for safe engine room use, and serves as a direct drop-in replacement for the 185 series. Backed by a 5-year warranty, it ensures durable, high-performance electrical safety for marine and industrial applications.
| ASIN | B0051OWRHE |
| Best Sellers Rank | #11,160 in Automotive ( See Top 100 in Automotive ) #19 in Automotive Replacement Circuit Breaker Switches |
| Brand | Blue Sea Systems |
| Brand Name | Blue Sea Systems |
| Circuit Breaker Type | Standard circuit breaker |
| Current Rating | 150 Amps |
| Customer Reviews | 4.6 out of 5 stars 182 Reviews |
| Global Trade Identification Number | 00632085071899 |
| Included Components | Great Product |
| Item Type Name | Great Product |
| Item Weight | 0.35 Pounds |
| Manufacturer | Blue Sea Systems |
| Model | 7189 |
| Mounting Type | Surface Mount |
| Number Of Poles | 1 |
| Number of Poles | 1 |
| Part Number | 7189-BSS |
| Smart Home Compatibility | Not Smart Home Compatible |
| UPC | 632085071899 |
| Unit Count | 1.0 Count |
| Voltage | 48 Volts (DC) |
| Warranty Description | Warranty |
J**.
Love these.
Works great. Love that you can use it as a switch.
H**E
It works, though I haven't tested the shorting capability yet. I like the shut-off switch.
Initially I was going to buy a less-expensive circuit breaker (maybe even a fused connection) for an inverter that I added to a diesel truck that I own. After looking into it, and looking at what some of the respected truck body/equipment manufacturers use, I went for this breaker. I like that I can hit the red button and shut the circuit off. I store the truck with this switch in the 'off' position just for added safety. I mounted it inside of the battery box of the truck on the side-wall of the box. Drilled through the steel in two places to mount it at the best angle.
D**D
They meet their specifications
I bought the 150A version. I ran the same test I did on the less expensive brands of these breakers. The other brands would trip around 80A to 90A (sometimes even less). This brand, I was able to run at 120A for about 45 minutes before I had to reduce the current because my test equipment was getting too hot. These actually appear to work at their rated current. Don't waste your money on the less expensive brands, get these if you are looking for breakers that actually meet their specifications. Also, the measured on resistance was about 0.0005 Ohms. Much better than other brands that I tested. Very nice pads around the studs for very low contact resistance.
J**7
Very well built.
Excellent compared to the cheaper ones. Easy to install.
J**O
Excellent product and brand.
Blue sea is one of my go to brands which has never failed me. Used the 7189 285 Series Circuit Breaker with Blue Sea Systems 5032 ST Blade Fuse Block for my accessories so i wouldn't have to tap into my fuse box.
R**K
It works
Installed this iteam so I could have a breaker between batteries and boat fuse box. So far it has worked great, also when I charge my batteries I hit the red button and that allows me to charge my batteries only
T**U
Original and that says it all! Highly recommended!
Original and that says it all! Highly recommended!
T**R
Works fine
It was an easy install. To fit a 2/0 terminal, a washer was needed under the nut. Great tech support from the company.
S**D
Costs more but works!!!
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!!!
A**Y
Trip fuse
These fuses work well but are under rated
C**.
Qualité marine
Recommandé dans les normes maritimes. Plus cher mais à 15€/20€ j'ai déjà eu un problème sur du bas de gamme!
A**G
Sicherung für Solar
Ein sicheres Bauteil für meine Solaranlage ; bin bis jetzt zufrieden
L**O
Ottimo prodotto
Interruttore per protezione della batteria usato sulla mia barca
Trustpilot
1 week ago
1 day ago