Blue Sea Systems builds the breakers that protect marine wiring. Size the breaker to the wire, pick push-button or switchable, and keep it ignition protected where it counts. A circuit breaker protects the wire, not just the gear on the end of it, and Blue Sea Systems builds the marine breakers that do that job reliably. This collection covers push-button reset breakers, toggle and switchable breakers, and panel-mount units across the full amp range. Choosing right comes down to sizing the breaker to the wire, picking the style that fits the install, and meeting the safety rules for your boat. Size the breaker to the wire, not the load This is the rule people get backward. A breaker exists to...
Circuit breakers protect the wire in electrical circuits. Blue Sea Systems broad selection of magnetic and thermal circuit breakers features a vast selection of main and branch circuit...
187 - Series Thermal Circuit Breakers - Surface Mount90 Amp Circuit BreakerPN: 7143Features: Combines switching and circuit protection into a single device All components meet SAE J1171 external ignition...
Circuit breakers protect the wire in electrical circuits. Blue Sea Systems broad selection of magnetic and thermal circuit breakers include a vast selection of main and branch circuit...
7233 A-Series Double Pole Toggle - 10AMP - WhitePoles: 2Color: WhiteAmperage: 10AFeatures: Meets American Boat and Yacht Council (ABYC) standards UL 1077 recognized, TUV certified, CE marked for...
285-Series Circuit Breaker Panel Mount - 80A Drop in replacement for 185-Series Circuit Breakers Visible reset lever shows open condition "Trip Free" - cannot be held closed after...
C-Series ELCI Main Circuit Breaker - Double Pole 230V AC 16AFeatures: Trips on short circuit, overload, or leakage to ground Front panel mount—installed in a power distribution panel...
Thermal circuit breakers provide heavy duty circuit protection for 25 to 200 Amp loads when switching and circuit protection are both required.Blue Sea 7144BSS Attributes Ampere Rating: 100 Amp...
Thermal circuit breakers provides medium duty circuit protection for 25 to 150 Amp loads when switching and circuit protection are both required.Blue Sea 7180BSS Attributes Ampere Rating: 25 Amp...
Thermal circuit breakers provides medium duty circuit protection for 25 to 150 Amp loads when switching and circuit protection are both required.Blue Sea 7187BSS Attributes Ampere Rating: 100 Amp...
C-Series ELCI Circuit Breaker - Double Pole 240V AC 50AFeatures: Trips on short circuits, overloads, or leakage to ground Front panel mount—installed in a power distribution panel Specifications:...
3134 - SMS Panel Enclosure with 4 Branch (12/24V) - 12/24V DC The 3134-panel enclosure for DC circuit breakers and other large frame devices.Features: Blank apertures for custom breaker...
1498 - 360 Panel - 8 Position 12V Panel with Dual USB & 12V SocketPart of the Blue Sea Systems Battery Management Panels. This DC Branch Circuit Breaker...
Blue Sea Push Button Reset Only Quick Connect Circuit Breaker - 5 AmpsModel: 7052-BSS Branch circuit breakers (can also be used for 24-hour circuit protection) Quick connect terminal...
Thermal circuit breakers provides medium duty circuit protection for 25 to 150 Amp loads when switching and circuit protection are both required. All of the company’s products are...
Branch circuit breakers can also be used for 24-hour circuit protection. Quick connect terminal style circuit breakers are incorporated into Blue Sea Systems WeatherDeck Waterproof Circuit Breaker Panels,...
7315 COTS Military Grade A-Series 30 AmpMay be suitable for use when military specifications are required under CFR 46.Specifications: Amperage: 30A Actuator Style: Metal Toggle Poles: 2 Max...
7067 ATO/ATC-Style Low Profile Circuit Breaker - 2-Pack - 25 AmpUse a manually resettable circuit breaker instead of an ATO or ATC fuse.Features: Drop in replacement for ATO...
7065 ATO/ATC-Style Low Profile Circuit Breaker - 2-Pack - 15 Amp Use a manually resettable circuit breaker instead of an ATO or ATC fuse.Features: Drop in replacement for...
7064 ATO/ATC-Style Low Profile Circuit Breaker - 2-Pack - 10 Amp Use a manually resettable circuit breaker instead of an ATO or ATC fuse.Features: Drop in replacement for ATO...
7063 ATO/ATC-Style Low Profile Circuit Breaker - 2-Pack - 7.5 Amp Use a manually resettable circuit breaker instead of an ATO or ATC fuse.Features: Drop in replacement for ATO...
7062 ATO/ATC-Style Low Profile Circuit Breaker - 2-Pack - 5 AmpUse a manually resettable circuit breaker instead of an ATO or ATC fuse.Features: Drop in replacement for ATO...
7317 COTS Military Grade A-Series 50 AmpMay be suitable for use when military specifications are required under CFR 46.Specifications: Amperage: 50A Actuator Style: Metal Toggle Poles: 2 Max...
7316 COTS Military Grade A-Series 40 AmpMay be suitable for use when military specifications are required under CFR 46.Specifications: Amperage: 40A Actuator Style: Metal Toggle Poles: 2 Max...
7314 COTS Military Grade A-Series 25 AmpMay be suitable for use when military specifications are required under CFR 46.Specifications: Amperage: 25A Actuator Style: Metal Toggle Poles: 2 Max...
Blue Sea Systems builds the breakers that protect marine wiring. Size the breaker to the wire, pick push-button or switchable, and keep it ignition protected where it counts.
A circuit breaker protects the wire, not just the gear on the end of it, and Blue Sea Systems builds the marine breakers that do that job reliably. This collection covers push-button reset breakers, toggle and switchable breakers, and panel-mount units across the full amp range. Choosing right comes down to sizing the breaker to the wire, picking the style that fits the install, and meeting the safety rules for your boat.
This is the rule people get backward. A breaker exists to stop the wire from overheating before it can start a fire, so you size it to the ampacity of the wire gauge it protects, not to the appliance draw. Pick the wire for the load and length first, then choose a breaker rated at or below what that wire can safely carry. Oversizing the breaker defeats the whole point.
Push-button reset-only breakers are compact and great for protecting a single circuit behind a panel. Switchable breakers, like the A-Series and toggle styles, double as an on-off switch and a breaker in one, which cleans up a panel by combining functions. Use switchable breakers where you want to kill the circuit by hand and protect it in the same spot.
Most 12-volt DC circuits use a single-pole breaker on the positive. AC circuits and some applications need double-pole breakers that open both conductors. Confirm whether you are protecting DC or AC and match the breaker rating and pole count to the system, because they are not interchangeable.
In a gasoline engine compartment or any space where fuel vapors can collect, the breaker must be ignition protected so it cannot spark a fire. Blue Sea marks ignition-protected parts clearly. Do not put a non-rated breaker in a gas engine space.
Match the breaker to your setup. Panel breakers integrate into a Blue Sea panel for a clean helm, while surface-mount and in-line breakers protect a single run near the source. Plan where the breaker lives so it is accessible to reset.
Not sure which breaker your circuit needs? Tell our techs the wire gauge, the load, and whether it is AC or DC, and we will match the amp rating, style, and pole count so the wiring is protected right.
Size the breaker to the wire it protects, not the appliance draw. Pick the wire gauge for the load and run length first, then choose a breaker rated at or below what that wire can safely carry. The breaker protects the wire from overheating.
Push-button reset-only breakers are compact for protecting a single circuit. Switchable breakers, like the A-Series, act as both an on-off switch and a breaker, which cleans up a panel by combining the two functions.
Most 12-volt DC circuits use a single-pole breaker on the positive. AC circuits and some setups need double-pole breakers that open both conductors. Match the pole count and rating to whether the system is AC or DC.
An ignition-protected breaker cannot spark a fire in a space where fuel vapors can collect, such as a gasoline engine compartment. Blue Sea marks these parts clearly, and you should never use a non-rated breaker in a gas engine space.
No. Oversizing the breaker removes protection from the wire and creates a fire risk. If a correctly sized breaker keeps tripping, the circuit is overloaded or faulted and needs to be fixed, not masked with a larger breaker.
