Blue Sea Systems Products: Precision and Reliability in Marine Electrical Components
Whether it's a surface-mounted power distribution panel or a common busbar, their products are designed with precision and reliability in mind. The A-series toggle switches, ANL and ATC fuses, ML-ACR and M-Series Mini relays, and specialty M2 OLED digital displays are just a few examples of their diverse product range catering to various marine needs.With features like ignition protection, high amperage capacity, and fast-charging capabilities, Blue Sea Systems ensures that their products meet the stringent requirements of specialty vehicle industries and marine applications. Their commitment to product quality and reliability makes them a trusted choice for power distribution panels and other electrical components in the boating industry.
Fast deliveries of yacht equipment, calculation, selection of analogues and spare parts. Send us your request and we will contact you ASAP with a solution. We deliver in Cyprus, throughout Europe and worldwide. More than 10 years of experience.
Email us: info@yacht-supply24.com or fill our Feedback form.
You can also fill out the "Ask a question" form on the right or at the bottom of the page.
|
1-2 weeks delivery time The Blue Sea 7050 Push Button Reset Only Circuit Breaker is a 3A panel-mount thermal breaker for DC systems up to 32V, designed for branch and 24-hour circuit protection. It features manual push-button reset, trip-free operation, and 1/4" male quick connect terminals, with 3/8-27 UNS panel mounting. Interrupt capacity is 3000A @ 14.7V and 2500A @ 28V, operating temperature -10°C to +60°C, and the unit is ignition protected. |
$ 10.89
-
+
|
|
1-2 weeks delivery time The Blue Sea 7713 ML-RBS is a 12V DC auto-releasing magnetic latching remote battery switch rated 500A continuous for high-current circuits. Supports remote and manual control with LOCKED OFF override, SPST/SPDT control, and LED state output. Ratings: 500A continuous, 700A 5 min, 1000A 30 sec. Control voltage 10.1–16.5V DC. Studs 3/8"-16, length 22.23 mm, cable size up to 2×(4/0). Operating −10°C to +60°C. Weight 2.07 lb (0.94 kg). ABYC C-7, CE, IP66, ISO 8846, SAE J1171. |
$ 447.57
-
+
|
|
1-2 weeks delivery time The Blue Sea 7900 is a red spare key for M-Series battery switches, designed as a replacement key for keyed M-Series switch models. Weight 0.10 lb (0.05 kg). Compatible with model 6005 m-Series Mini On-Off Battery Switch with Key. |
$ 6.10
-
+
|
|
1-2 weeks delivery time The Blue Sea 5108 MEGA® / AMG® Fuse (300A) is an economical solution for 100–300A circuit protection applications and is designed for use with Blue Sea Systems AMG® fuse blocks. It is rated 300A, 70V DC, and is Ignition Protected (Yes), with an interrupt capacity of 2000A @ 32V DC. The fuse weighs 0.06 lb (0.03 kg) and works with all AMG fuse blocks, including the 7721 AMG® Safety Fuse Block. |
$ 18.49
-
+
|
|
1-2 weeks delivery time The Blue Sea 7049 187-Series Circuit Breaker is a 200A panel-mount, Type III trip-free breaker for DC systems up to 48V, combining switching and circuit protection in a single device. It uses a thermally responsive bi-metal blade, features IP66 waterproof and ignition-protected construction, and includes 5/16"-18 (M8) terminal studs with 75 in-lb (8.47 Nm) torque. Interrupt capacity is 5000A @ 14VDC, 3000A @ 28VDC, and 1500A @ 48VDC, with an operating temperature range of -40°C to +85°C. |
$ 228.98
-
+
|
|
1-2 weeks delivery time The Blue Sea 5510e e-Series Dual Circuit Battery Switch simultaneously switches two isolated battery banks and is rated 350A continuous, 525A intermittent (5 min), and 700A cranking per circuit (30 sec) for systems up to 32V DC. It features 3/8"-16 (M10) tinned copper studs with 140 in-lb torque rating, supports 4/0 AWG cables, and provides ignition protection with IP66 rating. Weight: 1.16 lb (0.53 kg). |
$ 123.94
-
+
|
|
1-2 weeks delivery time The Blue Sea 8143 is a European AC breaker panel with one double pole main breaker and 3 branch positions for 230V AC systems, supplied with an integrated AC micro voltmeter (0–250V). It is fully pre-wired with hot, neutral, and safety ground buses and includes backlit circuit label positions and ON indicator LEDs in all circuits, plus a red reverse polarity LED. Panel dimensions are 7.50 × 5.25 in (190.5 × 133.35 mm). Weight is 2.00 lb (0.91 kg). |
$ 449.52
-
+
|
|
1-2 weeks delivery time The Blue Sea 7700 ML-RBS Remote Battery Switch is a 12V DC magnetic latching switch rated for 500A continuous current, designed for high-amperage battery switching under load from remote or manual control. It features a manual override knob with LOCKED OFF service position, bi-stable coil, silver alloy contacts, and 3/8"-16 tin-plated copper studs with 7/8" (22 mm) length for multiple cable terminals. Ratings include 500A continuous, 700A for 5 minutes, and 1000A cranking (30 sec). Operating range −10°C to +60°C. Mechanical endurance: 100,000 cycles. Weight: 2.05 lb (0.93 kg). CE marked, IP66, ignition protected, ISO 8846, SAE J1171. |
$ 386.72
-
+
|
|
1-2 weeks delivery time The Blue Sea 1810 is a non-contact ultrasonic tank sender for diesel, water, and waste tanks up to 32 inches deep. Designed for use with the Blue Sea VSM 422 and M2 monitors, it features digital filtering to reduce slosh errors and precise calibration per tank, delivering reliable level measurement without mechanical moving parts. |
$ 235.09
-
+
|
|
1-2 weeks delivery time The Blue Sea 11003 is a heavy-duty HD-Series 3-position battery selector switch rated 400A continuous and 32V DC for switching isolated battery banks to all loads. Includes Alternator Field Disconnect (AFD), accepts two 4/0 AWG cables per terminal, and features 1/2″ (M12) studs. Cable clearance: 27.94 mm. Weight: 0.57–0.59 kg. |
$ 200.62
-
+
|
|
1-2 weeks delivery time The Blue Sea 2155 is an SPDT remote control Contura switch with momentary ON-ON action, featuring a red actuator, engineered to resist vibration, shock, thermoshock, moisture, and salt spray, with a weight of 0.30 lb (0.14 kg). |
$ 45.29
-
+
|
|
1-2 weeks delivery time The Blue Sea 8505 is a 230V AC (European) distribution panel with AC main breaker, 3 branch circuit positions, and an AC digital multi-function meter with alarm. It is fully pre-wired with hot, neutral, and safety ground buses, and includes reverse polarity indication, backlit labels, and ON-status LEDs in all positions. Dimensions: 7.50 × 5.25 in. Weight: 2.94 lb. |
$ 963.26
-
+
|
|
1-2 weeks delivery time The Blue Sea 2145 is an SPDT remote control Contura switch with momentary (ON)-OFF-(ON) action, featuring a red actuator, designed for operation in environments resistant to vibration, shock, thermoshock, moisture, and salt spray, with a weight of 0.09 lb (0.04 kg). |
$ 44.30
-
+
|
|
1-2 weeks delivery time The Blue Sea 4306 WeatherDeck® Fuse Panel is a 12V DC waterproof fuse panel with 6 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 90A. |
$ 228.54
-
+
|
|
1-2 weeks delivery time The Blue Sea 5026 ST Blade Fuse Block provides 12 ATO®/ATC® fused circuits with an integrated negative bus and insulating cover for organized DC branch circuit protection up to 32V DC. It supports 100A per block and 30A per circuit (depending on fuse and wire sizing) and uses #10-32 studs for both positive and negative distribution. The cover meets ABYC/USCG insulation requirements, includes an easy-open latch, storage for two spare fuses, and label recesses for Small Format Labels (with 20 write-on circuit labels included). |
$ 103.35
-
+
|
|
1-2 weeks delivery time The Blue Sea 4160 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 applications. |
$ 38.25
-
+
|
|
1-2 weeks delivery time The Blue Sea 4352 is a 6-position BelowDeck circuit breaker panel for 12V DC systems. It uses six illuminated 15A circuit breakers with red ON indication and integrated overcurrent protection, with a cumulative panel rating of 45A. The low-profile panel features quick-connect bus architecture for simplified wiring in protected installations. |
$ 84.01
-
+
|
|
1-2 weeks delivery time The Blue Sea 5113 A3T / Class T Fuse (125A) is a fast-acting fuse with extremely fast short-circuit response and a 20,000A interrupt capacity (AIC). It is rated 125A up to 125V DC, with an interrupt capacity of 20,000A @ 125V DC, a stud torque specification of 3/8" in-lb (0.34 Nm), and a weight of 0.30 lb (0.14 kg). This fuse works with the 5007100 Class T Fuse Block with Insulating Cover (110 to 200A). |
$ 69.94
-
+
|
What are the primary components of marine electrical systems, and how do they contribute to the functionality of a boat?
Marine electrical systems consist of several key components that are essential for the functionality of a boat. These components include fuse blocks, circuit breaker panels, toggle switches, terminal blocks, and busbars, among others. Fuse blocks and heavy duty circuit breaker panels provide crucial circuit protection, ensuring that electrical circuits are safeguarded against overloads and short circuits. Toggle switches and terminal blocks facilitate the operation and connection of various electrical devices and systems onboard, while busbars enable efficient power distribution throughout the vessel. Innovative electrical systems, such as those offered by Blue Sea Systems, are engineered to withstand marine conditions, providing water resistance and durability. These components collectively contribute to reliable power distribution, efficient circuit protection, and overall electrical system performance, ensuring the safety and functionality of the boat.
In addition to these essential components, marine electrical systems may also include specialized equipment like switch panels and battery chargers. A 12-circuit switch panel allows for convenient control over multiple electrical circuits, while heavy-duty battery chargers ensure efficient charging of onboard batteries. Remote battery switches provide convenient control over battery banks, enhancing operational flexibility. Surface-mounted powerbars serve as centralized distribution points for electrical connections, simplifying wiring and maintenance tasks. As a trusted supplier in the marine industry, Blue Sea Systems offers fast-charging solutions and ignition-protected components like the SI-ACR, ensuring safe and reliable operation. Single-pole components like the L-series, AMG, and MIDI fuses provide essential circuit protection, while wire gauges (AWG) are carefully selected to meet the reliability standards of boating applications For centralized safety and protection, consider integrating a Blue Sea Fuse Block into your setup.
Whether you're upgrading an existing setup or outfitting a new vessel, the inclusion of a Blue Sea Battery Switch ensures dependable power control and long-lasting performance in demanding marine environments.
How do fuse blocks, battery switches and circuit breaker panels enhance the safety and reliability of marine electrical systems?
Fuse blocks, battery switches, and circuit breaker panels significantly enhance the safety and reliability of marine electrical systems by offering structured, protected, and efficient power distribution. Built to endure harsh marine conditions, components from Blue Sea Systems Electrical—such as water-resistant fuse blocks and ignition-protected battery switches—ensure dependable performance over time.
Circuit protection devices like the ST blade fuse and 285-series circuit breaker safeguard against electrical overloads and short circuits, reducing the risk of onboard fires or equipment failure. Products like the 5026 and 6006 circuit breakers are engineered to withstand high loads and corrosive marine environments, while surface-mount fuse blocks and powerbars provide neat, space-saving solutions for circuit management.
These components are often key parts of the Blue Sea Add a Battery system, enabling optimized battery usage and protection. High-amperage ratings (e.g., 150 amps) and advanced features like the 7610 relay and 2104 switch—both ignition-protected—further elevate the safety standards of your vessel's electrical setup, offering peace of mind and operational reliability in any marine scenario.
What are the advantages of using specialty components like solenoid switches, busbar, terminal blocks, chargers and inverter systems in marine applications?
Specialty components like solenoid switches, busbars, terminal blocks, chargers, and inverter systems offer numerous advantages in marine applications, particularly when integrated into a well-designed Marine Wiring system. Solenoid switches enable reliable remote control of high-current circuits, making it easier to manage systems like lighting, pumps, and winches with minimal energy loss.
Heavy-duty solenoid switches are designed to withstand the rigorous demands of marine environments, offering robust performance and longevity. Surface-mount powerbars provide a convenient and organized solution for connecting multiple electrical devices, ensuring efficient power distribution throughout the vessel. With capabilities for fast charge and ignition-protected features, these components deliver reliable power management and safety, enhancing the overall functionality and performance of marine electrical systems.
For additional reliability and organization in your vessel's electrical setup, consider integrating a Blue Sea Terminal Block, ensuring secure and efficient connections in challenging marine environments.