Electrical - Circuit Breakers
Marine circuit breakers are essential components designed to protect your boat's electrical systems from overloads, short circuits, and potential equipment damage. Engineered for demanding freshwater and saltwater environments, today's marine circuit breakers feature durable, corrosion-resistant construction and reliable resettable protection to help maintain safe and efficient power distribution onboard. From surface-mount breakers and panel-mount models to high-amperage protection for batteries, trolling motors, windlasses, pumps, and marine electronics, these components provide dependable protection for a wide range of vessel applications. Marine-rated circuit breakers are built to withstand vibration, moisture, and harsh conditions while delivering consistent performance when your electrical system needs it most. Whether you're installing new equipment, upgrading your electrical system, or replacing existing components, the right circuit breaker helps protect valuable onboard electronics and improve overall reliability. Featuring premium products from trusted marine manufacturers, our Electrical – Circuit Breakers collection delivers the quality and performance serious boaters expect. Browse our selection today and let our knowledgeable team help you choose the ideal circuit breaker for your vessel.
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Sort by:
- Featured
- Most relevant
- Best selling
- Alphabetically, A-Z
- Alphabetically, Z-A
- Price, low to high
- Price, high to low
- Date, old to new
- Date, new to old
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Vendor:Blue Sea Systems
Blue Sea 7035 187 - Series Thermal Circuit Breaker - 25Amp [7035]
- £70.49
£96.54- £70.49
- Unit price
- / per
187 - Series Thermal Circuit Breakers - Panel Mount25 Amp Circuit BreakerPN: 7035Features: Combines switching and circuit protection into a single device All components meet SAE J1171 external ignition protection requirements Clear, single lever operation "Trip Free" design cannot be held "ON" during fault current...- £70.49
£96.54- £70.49
- Unit price
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Vendor:Blue Sea Systems
Blue Sea 7042 187-Series Circuit Breaker - Panel Mount 80A [7042]
- £70.49
£96.54- £70.49
- Unit price
- / per
7042 187-Series Circuit Breaker - Panel Mount 80AFeatures: Combines switching and circuit protection into a single device* Precise, single-lever operation "Trip Free" design cannot be held "ON" during fault current condition Waterproof Recessed mounting holes for clean appearance Ample Clearance around terminal studs accepts...- £70.49
£96.54- £70.49
- Unit price
- / per
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Vendor:Blue Sea Systems
Blue Sea 7152 Short Stop Circuit Breaker - 15A [7152]
- £8.42
£10.72- £8.42
- Unit price
- / per
7152 Short Stop Circuit Breaker - 15A Corrosion Resistant Material IP 64 Water Resistant Boot Push to Reset Only Interrupt Capacity: 2,500A @ 28VDC Red insulating boot included in retail package Specifications Amperage: 15A DC Maximum Voltage: 28V DC Interrupt Capacity: 2500A @ 28V...- £8.42
£10.72- £8.42
- Unit price
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Vendor:Blue Sea Systems
Blue Sea 7232 A-Series Double Pole Toggle - 10A - Black [7232]
- £41.37
£56.69- £41.37
- Unit price
- / per
A-Series Toggle Double PolePN: 7232Poles: 2Color: BlackAmperage: 10AFeatures: Meets American Boat and Yacht Council (ABYC) standards UL 1077 recognized, TUV certified, CE marked for Europe and CSA certified for Canada The industry standard circuit breaker for Blue Sea Systems electrical panels Combines switching and circuit protection into a...- £41.37
£56.69- £41.37
- Unit price
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Vendor:Maxwell
Maxwell 135Amp 12/24V Windlass Isolator [P100791]
- £95.77
£135.17- £95.77
- Unit price
- / per
135Amp 12/24V Windlass IsolatorMaxwell circuit breaker/isolator panel, 135 Amp 12/24-volt, suitable for all 800 to 3500 Series 12V & 4000 24V windlasses.Features: For protection of the main conductor circuit for DC winches and the control circuit for hydraulic winches Mount as close as possible...- £95.77
£135.17- £95.77
- Unit price
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Vendor:Blue Sea Systems
Blue Sea 7365 C-Series Double Pole Circuit Breaker - 30A [7365]
- £78.15
£106.50- £78.15
- Unit price
- / per
C-Series TogglePN: 7365Poles: 2Color: WhiteAmperage: 30AFeatures: 5,000 Ampere interrupt capacity to meet ABYC requirements for 120/240 Volt 50 Ampere main protection Double pole used as 120 volt AC main circuit breaker to switch hot to neutral Triple pole used as 240 volt AC main circuit breaker to switch...- £78.15
£106.50- £78.15
- Unit price
- / per
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Vendor:Egis Mobile Electric
Egis A Series White Toggle Panel Mount Circuit Breaker - Dual Pole 30A [3202-30]
- £21.45
£28.66- £21.45
- Unit price
- / per
A Series White Toggle Panel Mount Circuit Breaker - Dual Pole 30AFeatures: Easily Mounts In Standard Panels, accepting A-Series and C-Series magnetic-hydraulic circuit breakers. Includes mounting screws. AC & DC Rated to cover a wide range of system application needs. Toggle-Style Actuator for easy...- £21.45
£28.66- £21.45
- Unit price
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Vendor:Egis Mobile Electric
Egis A Series Black Toggle Panel Mount Circuit Breaker - Single Pole 40A [3211-40]
- £11.49
£14.94- £11.49
- Unit price
- / per
A Series Black Toggle Panel Mount Circuit Breaker - Single Pole 40AFeatures: Easily Mounts In Standard Panels, accepting A-Series and C-Series magnetic-hydraulic circuit breakers. Includes mounting screws. AC & DC Rated to cover a wide range of system application needs. Toggle-Style Actuator for easy...- £11.49
£14.94- £11.49
- Unit price
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Vendor:Egis Mobile Electric
Egis A Series White Toggle Panel Mount Circuit Breaker - Dual Pole 20A [3202-20]
- £21.45
£28.66- £21.45
- Unit price
- / per
A Series White Toggle Panel Mount Circuit Breaker - Dual Pole 20AFeatures: Easily Mounts In Standard Panels, accepting A-Series and C-Series magnetic-hydraulic circuit breakers. Includes mounting screws. AC & DC Rated to cover a wide range of system application needs. Toggle-Style Actuator for easy...- £21.45
£28.66- £21.45
- Unit price
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Vendor:Blue Sea Systems
Blue Sea A-Series ELCI Main Circuit Breaker - Double Pole 120V AC 30A [3106100]
- £291.93
£417.60- £291.93
- Unit price
- / per
A-Series ELCI Main Circuit Breaker - Double Pole 120V AC 30AFeatures: Trips on short circuit, overload, or leakage to ground Front panel mount—installed in a power distribution panel Specifications: Amperage: 30A Color: White Actuator Style: Toggle Poles: 2 Ignition Protected: Yes Max Voltage: 240VAC/120VAC...- £291.93
£417.60- £291.93
- Unit price
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Vendor:Blue Sea Systems
Blue Sea 7289 C-Series Triple Pole Circuit Breaker - 80A [7289]
- £103.44
£141.75- £103.44
- Unit price
- / per
C-Series TogglePN: 7289Poles: 3Color: WhiteAmperage: 80AFeatures: 5,000 Ampere interrupt capacity to meet ABYC requirements for 120/240 Volt 50 Ampere main protection Double pole used as 120 volt AC main circuit breaker to switch hot to neutral Triple pole used as 240 volt AC main circuit breaker to switch...- £103.44
£141.75- £103.44
- Unit price
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Vendor:Blue Sea Systems
Blue Sea 7545 C-Series Flat Rocker Circuit Breaker - Single Pole - 30A [7545]
- £38.30
£52.10- £38.30
- Unit price
- / per
C-Series Flat Rocker Circuit Breaker - Single Pole - 30AFeatures: Rocker actuator is flush in the "ON" position, eliminating the risk of accidential switching Color actuator indicates "OFF" position Provides overcurrent protection for inverters, bow thrusters, and windlasses Combines switching and circuit protection into...- £38.30
£52.10- £38.30
- Unit price
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Vendor:Blue Sea Systems
Blue Sea 5050 ST CLB Circuit Breaker Block - 6 Position [5050]
- £41.37
£56.69- £41.37
- Unit price
- / per
ST CLB Circuit Breaker Block - 6 PositionFeatures Quick connect clips allow circuit breakers to snap easily into place Tin-plated copper busses and screw terminals Clear insulating cover with square format label recesses, satisfies ABYC/USCG insulation requirements Easy to open clip on cover Breakouts...- £41.37
£56.69- £41.37
- Unit price
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Vendor:Blue Sea Systems
Blue Sea 7146 187 - Series Thermal Circuit Breaker - 120Amp [7146]
- £70.49
£96.54- £70.49
- Unit price
- / per
187 - Series Thermal Circuit Breakers - Surface Mount120 Amp Circuit BreakerPN: 7146Features: Combines switching and circuit protection into a single device All components meet SAE J1171 external ignition protection requirements Clear, single lever operation "Trip Free" design cannot be held "ON" during fault current...- £70.49
£96.54- £70.49
- Unit price
- / per
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Vendor:Blue Sea Systems
Blue Sea 7136 187 - Series Thermal Circuit Breaker - 30Amp [7136]
- £70.49
£96.54- £70.49
- Unit price
- / per
187 - Series Thermal Circuit Breakers - Surface Mount30 Amp Circuit BreakerPN: 7136Features: Combines switching and circuit protection into a single device All components meet SAE J1171 external ignition protection requirements Clear, single lever operation "Trip Free" design cannot be held "ON" during fault current...- £70.49
£96.54- £70.49
- Unit price
- / per
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Vendor:Egis Mobile Electric
Egis 20A Yellow Short Stop Circuit Breaker [4730-20]
- £5.36
£6.90- £5.36
- Unit price
- / per
20A Yellow Short Stop Circuit BreakerFeatures: Compact Surface Mount Circuit Breaker supports low and medium-amperage circuits with resettable circuit protection. 28 Max Vdc Rating easily supports 12V and 24V systems. Weather Resistant Against Dust & Water Intrusion to ensure reliable circuit protection for the...- £5.36
£6.90- £5.36
- Unit price
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Vendor:Blue Sea Systems
Blue Sea 7065 ATO/ATC-Style Low Profile Circuit Breaker - 2-Pack - 15 Amp [7065]
- £6.89
£9.19- £6.89
- Unit price
- / per
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 ATO and ATC blade style fuses Manual push button reset complies with ABYC circuit protection requirements...- £6.89
£9.19- £6.89
- Unit price
- / per
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Vendor:Blue Sea Systems
Blue Sea 7135 187 - Series Thermal Circuit Breaker - 25Amp [7135]
- £70.49
£96.54- £70.49
- Unit price
- / per
187 - Series Thermal Circuit Breakers - Surface Mount25 Amp Circuit BreakerPN: 7135Features: Combines switching and circuit protection into a single device All components meet SAE J1171 external ignition protection requirements Clear, single lever operation "Trip Free" design cannot be held "ON" during fault current...- £70.49
£96.54- £70.49
- Unit price
- / per
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Vendor:Egis Mobile Electric
Egis 20A Push Button Panel Mount Circuit Breaker - Screw Terminals [4710-20]
- £3.06
£6.21- £3.06
- Unit price
- / per
20A Push Button Panel Mount Circuit Breaker - Screw TerminalsFeatures: Push-To-Reset allows for easy identification of a tripped breaker as well as an easy reset of the breaker to the on position. Harsh Environment Design with stainless steel hardware, self-locking screws, and optional sealing...- £3.06
£6.21- £3.06
- Unit price
- / per
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Vendor:Egis Mobile Electric
Egis 15A Push Button Panel Mount Circuit Breaker - Spade Terminal [4711-15]
- £4.59
£10.34- £4.59
- Unit price
- / per
15A Push Button Panel Mount Circuit Breaker - Spade TerminalFeatures: Push-To-Reset allows for easy identification of a tripped breaker as well as an easy reset of the breaker to the on position. Includes Knurled Nut & Palnut for easy and clean panel mount Ignition-protected...- £4.59
£10.34- £4.59
- Unit price
- / per


![Blue Sea 7152 Short Stop Circuit Breaker - 15A [7152]](http://www.dbmarinesupplies.com/cdn/shop/files/68717XL_533x.jpg?v=1682710988)
![Blue Sea 5050 ST CLB Circuit Breaker Block - 6 Position [5050]](http://www.dbmarinesupplies.com/cdn/shop/files/51809XL_533x.jpg?v=1682674841)