Blue Sea Systems offers a comprehensive range of high-quality marine electrical products. Their products include fuse panels, terminal fuses, distribution blocks, battery management systems, switches, circuit protection, and more. These products are designed to enhance the safety, reliability, and efficiency of electrical systems on boats and yachts. Blue Sea Systems' fuse panels and distribution blocks help organize and protect wiring, while their battery management solutions ensure proper power distribution and control. Their switches, voltmeters, and other components provide easy monitoring and control of onboard electrical systems. Overall, Blue Sea Systems' products contribute to the smooth operation and safety of marine electrical systems.
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1-2 weeks delivery time The Blue Sea 4155 is a DPDT WeatherDeck® toggle switch with ON-OFF-ON operation, rated IP67 for temporary immersion up to 30 minutes when used with a WeatherDeck® toggle switch boot. It features nickel-plated brass and phenolic non-corrosive construction and is rated for 5A at 30V DC, with six quick connect terminals for dual-circuit control.
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$ 28.63
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1-2 weeks delivery time The Blue Sea 4161 is a 10A push button LED ring switch with OFF-(ON) momentary operation for 12V DC systems. It supports SPST or SPDT wiring, normally open or normally closed configurations, independent LED power contacts, and IP67-rated sealing for marine environments.
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$ 39.97
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1-2 weeks delivery time The Blue Sea 4162 is a 10A push button LED ring switch with OFF-ON operation for 12V DC systems. It supports SPST or SPDT wiring, normally open or normally closed configurations, independent LED power contacts, and IP67-rated sealing for marine use.
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$ 39.97
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1-2 weeks delivery time The Blue Sea 4163 is a 10A push button LED ring switch with OFF-(ON) momentary operation for 12V DC systems. It supports SPST or SPDT wiring, normally open or normally closed configurations, independent LED power contacts, and IP67-rated sealing for marine use.
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$ 39.97
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1-2 weeks delivery time The Blue Sea 4180 is a 15A push button backlit switch with OFF-ON operation for 12V DC systems. The button is illuminated blue when OFF and red when ON, includes five icon labels, and is rated IP67 for marine panel installations.
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$ 113.02
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1-2 weeks delivery time The Blue Sea 4181 is a 15A push button backlit switch with OFF-(ON) momentary operation for 12V DC systems. The button is illuminated blue when OFF and red when ON, includes five icon labels for circuit identification, and is rated IP67 for marine panel installations.
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$ 114.25
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1-2 weeks delivery time The Blue Sea 4215 is a waterproof DC label kit with 30 black square labels designed for WeatherDeck waterproof panels and battery management panels. The kit uses reinforced, weatherproof material and is included with WeatherDeck waterproof panels.
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$ 24.65
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1-2 weeks delivery time The Blue Sea 4230 Label Kit is a backlit push button switch label set containing 50 icon labels designed for use with stainless steel backlit push button switches. The labels are manufactured from scratch-resistant polycarbonate and feature back-printed graphics for improved durability. A waterproof adhesive backing ensures reliable adhesion and long service life in wet marine environments.
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$ 24.18
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1-2 weeks delivery time The Blue Sea 4304 WeatherDeck® Fuse Panel is a 12V DC waterproof fuse panel with 4 circuits for flybridge and open cockpit installations. The panel front is IP67 rated when properly mounted and is protected against immersion up to 1 meter for 30 minutes. It features integrated ATO/ATC fuse-based circuit protection, bicolored LED circuit status indication, and an independent label backlighting circuit for remote switching and dimming. Electrical rating is 15A per circuit at 12V DC, with a cumulative panel rating of 60A.
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$ 161.62
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1-2 weeks delivery time The Blue Sea 4305 WeatherDeck® Switch Panel is a waterproof 4-position switch panel for 12V and 24V DC systems, designed for exposed marine installations such as dashboards and flybridges. The panel front is IP67 rated when properly mounted and is protected against immersion up to 1 meter for 30 minutes. It provides waterproof switching without integrated circuit protection or backlighting. Each circuit is rated at 15A at 12V DC, with a cumulative panel rating of 45A.
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$ 95.24
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1-2 weeks delivery time The Blue Sea 4308 WeatherDeck® Fuse Panel is a 12V DC waterproof fuse panel with 8 circuits for flybridge and open cockpit installations. The panel front is IP67 rated when properly mounted and is protected against immersion up to 1 meter for 30 minutes. It features integrated ATO/ATC fuse-based circuit protection, bicolored LED circuit status indication, and an independent label backlighting circuit for remote switching and dimming. Electrical rating is 15A per circuit at 12V DC, with a cumulative panel rating of 100A.
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$ 320.89
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1-2 weeks delivery time The Blue Sea 4309 WeatherDeck® Switch Panel is a waterproof 8-position switch panel for 12V and 24V DC systems, designed for exposed marine installations such as dashboards and flybridges. The panel front is IP67 rated when properly mounted and is protected against immersion up to 1 meter for 30 minutes. It provides waterproof switching without integrated circuit protection or backlighting. Each circuit is rated at 15A at 12V DC, with a cumulative panel rating of 45A.
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Our managers will contact you and clarify the terms of the order
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1-2 weeks delivery time The Blue Sea 4320 is a water-resistant circuit breaker switch panel with 4 positions for 12V DC systems, designed for exposed mounting applications. It uses illuminated 15A circuit breakers that provide switching, ON indication, and overcurrent protection. The panel supports a maximum cumulative amperage of 45A and features silicone breaker boots and a gasket to protect against water ingress. The panel is IP66 rated and uses industry-standard sizes for easy retrofit installations.
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$ 75.27
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1-2 weeks delivery time The Blue Sea 4321 is a water-resistant 4-position circuit breaker switch panel for 12V DC systems with an integrated 12V dash socket and dual USB charger. It uses illuminated 15A circuit breakers providing switching, ON indication, and overcurrent protection, with a cumulative panel rating of 45A. The panel is IP45 rated and designed for exposed mounting and retrofit installations.
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$ 113.11
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1-2 weeks delivery time The Blue Sea 4322 is a water-resistant 6-position circuit breaker switch panel for 12V DC systems, designed for exposed installations. It uses illuminated 15A circuit breakers providing switching, ON indication, and overcurrent protection, with a cumulative panel rating of 45A. The panel is IP66 rated and sized for retrofit applications.
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$ 77.30
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1-2 weeks delivery time The Blue Sea 4363 is a water-resistant accessory panel for 12V DC systems with a 15A illuminated circuit breaker, 12V socket, and 2.1A dual USB charger. It includes a pre-wired harness for easy installation and allows the breaker to disconnect the panel to prevent parasitic draw. The panel is IP45 rated and CE and UKCA certified.
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$ 91.26
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1-2 weeks delivery time The Blue Sea 4364 is a water-resistant accessory panel for 12V DC systems with an illuminated 15A circuit breaker and two blank apertures for custom accessory installation. It includes a pre-wired harness for easy installation and allows the breaker to disconnect the panel to prevent parasitic draw. The panel is IP66 rated and CE and UKCA certified.
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$ 42.89
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1-2 weeks delivery time The Blue Sea 4374 is a WeatherDeck® waterproof circuit breaker panel with 4 circuits for 12V and 24V DC systems, designed for flybridge and open cockpit installations. The panel front is IP67 rated for temporary immersion and uses push-button reset circuit breakers rated at 15A @ 12V DC or 9A @ 24V DC per circuit, with a cumulative rating of 45A. Independent green LED label backlighting supports remote switching and dimming.
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$ 221.68
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1-2 weeks delivery time The Blue Sea 4376 is a WeatherDeck® waterproof circuit breaker panel with 6 circuits for 12V and 24V DC systems, designed for flybridge and open cockpit installations. The panel front is IP67 rated for temporary immersion and uses push-button reset circuit breakers rated at 15A @ 12V DC or 9A @ 24V DC per circuit, with a cumulative panel rating of 45A. Independent green LED label backlighting supports remote switching and dimming.
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$ 259.75
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1-2 weeks delivery time The Blue Sea 4378 is a WeatherDeck® waterproof circuit breaker panel with 8 circuits for 12V and 24V DC systems, designed for flybridge and open cockpit installations. The panel front is IP67 rated for temporary immersion and uses push-button reset circuit breakers rated at 15A @ 12V DC or 9A @ 24V DC per circuit, with a cumulative panel rating of 45A. Independent green LED label backlighting supports remote switching and dimming.
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$ 335.71
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What are the key components and features of a Blue Sea Systems add-a-battery dual circuit system, and how does it contribute to effective battery management on boats?
A Blue Sea Systems add-a-battery dual circuit system is a comprehensive solution designed for efficient battery management on boats and yachts. It includes key components such as an Automatic Charging Relay (ACR), distribution blocks, switches, fuses, and terminal blocks. The system allows seamless switching between battery banks, prioritizing charging and isolating them when necessary. This setup optimizes power distribution, prevents battery drain, and ensures reliable starting power. The dual circuit system is a fundamental tool in maintaining electrical integrity and uninterrupted power supply on marine vessels.
By integrating a Blue Sea Battery Switch, users gain a reliable and safe method to manually control power flow between battery banks. This switch is built to marine-grade standards, ensuring long-term durability in harsh environments.
How does a Blue Sea Systems SI-ACR (Automatic Charging Relay) function, and what benefits does it offer for maintaining optimal battery charging and isolation?
The Blue Sea Systems SI-ACR (Automatic Charging Relay) is a key component in advanced Marine Wiring systems, designed to simplify and optimize the management of multiple battery banks on boats and yachts. It functions by automatically connecting battery banks during charging—when voltage exceeds a preset threshold—and isolating them when charging stops or voltage drops.
For a complete power distribution and protection solution, pair the SI-ACR with a robust Blue Sea Fuse Block.
What is the purpose of a Blue Sea Systems MRBF (Terminal Fuse) and how is it utilized in marine electrical systems to ensure safety and protection?
The Blue Sea Systems MRBF (Terminal Fuse) is a crucial component in marine electrical systems designed to provide protection against overcurrent situations. It safeguards electrical circuits and equipment by interrupting the flow of current in the event of a fault or excessive current draw. These fuses are engineered to handle high current loads and are typically installed in close proximity to batteries, making them a critical element in systems that require high reliability and safety.
Often used alongside Blue Sea Add a Battery systems, MRBF fuses ensure consistent protection and help maintain the integrity of the overall electrical setup. Their compact design and high interrupt capacity make them ideal for marine environments, where space is limited and safety is paramount.
To further enhance electrical safety and efficiency, integrating a Blue Sea Terminal Block provides organized and secure connections, optimizing the performance and reliability of marine electrical installations.