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 7654 Mini Add-A-Battery Plus Kit 65A (Europe) is a complete small boat dual-battery management and charging system for alternators up to 65A. The kit includes an m-Series Mini Dual Circuit Plus™ Battery Switch (6011), a 3-stage 10A BatteryLink® charger (European version) with integrated 65A Automatic Charging Relay, LED charger remote, and a submersible temperature sensor. It supports alternator DC charging and AC dock charging, provides battery bank isolation and emergency combine function, and features IP66/IP67 protection ratings. CE certified. |
Our managers will contact you and clarify the terms of the order
|
|
1-2 weeks delivery time The Blue Sea 7702 ML-RBS Remote Battery Switch is a 24V DC magnetic latching battery switch rated for 500A continuous current, designed for high-amperage switching under load from remote or manual control. It features a manual override knob with LOCKED OFF service position, bi-stable coil, and silver alloy contacts. The switch uses 3/8"-16 tin-plated copper studs with 7/8" (22.23 mm) length and supports cable size up to 2x (4/0). Electrical ratings include 500A continuous, 700A for 5 minutes, and 1000A starting (30 sec). Operating temperature range −10°C to +60°C. Weight: 2.09 lb (0.95 kg). ABYC C-7, CE marked, ignition protected, IP66, ISO 8846, SAE J1171. |
$ 386.72
-
+
|
|
1-2 weeks delivery time The Blue Sea 7717 ML-RBS is a 24V DC auto-releasing magnetic latching remote battery switch rated 500A continuous with SPST switching and manual override with LOCKED OFF position. Control voltage 20.2–32.9V DC. Ratings: 500A continuous, 700A (5 min), 1000A (30 sec). Features 3/8"-16 tin-plated copper studs, 22.23 mm stud length, cable size up to 2×(4/0), and LED state output. Operating range −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 7720 AMI / MIDI Safety Fuse Block is an ignition-protected fuse holder rated up to 200A with 4/0 AWG (70 mm) cable and 32V DC. It features a sealed insulating cover with multi-direction wire access, M8 x 1.25 stud, and IP66 protection. Designed for marine gasoline and diesel installations. Torque: stud 120 in-lb, fuse screw 27 in-lb. Weight 0.15 lb (0.07 kg). |
$ 65.21
-
+
|
|
1-2 weeks delivery time The Blue Sea 7721 AMG Safety Fuse Block is an ignition-protected fuse holder for AMG® fuses rated up to 300A with 4/0 AWG (70 mm) cable and 32V DC. It features a sealed insulating cover with multi-direction wire access, M8 × 1.25 stud connection, and IP66 protection for marine gasoline and diesel installations. Stud torque 120 in-lb. Weight 0.15 lb (0.07 kg). |
$ 65.21
-
+
|
|
1-2 weeks delivery time The Blue Sea 7725 SafetyHub 100 Fuse Block is an ignition-protected 7-circuit fuse hub combining MIDI®/AMI® and ATO®/ATC® fused outputs with an integrated waterproof connector plug. Supports three MIDI/AMI fuse positions (30–200A) and four ATO/ATC positions (1–20A), with 280A combined maximum and operating voltage 12/24/32V. Features IP66 sealed cover, M8 studs, and consolidated high- and low-amp circuit distribution. Weight 3.20 lb (1.45 kg). |
$ 212.13
-
+
|
|
1-2 weeks delivery time The Blue Sea 7765 L-Series Solenoid is a 12/24V DC continuous-duty SPST normally open solenoid rated 150A continuous for DC subpanels, thrusters, windlasses, inverters, and medium-amp loads. Control circuit 9–36V DC with 22 AWG tinned wires. Ratings: 150A continuous, 225A (5 min), 600A cranking (30 sec) with 2 AWG cable at 50°C. Contact voltage 320V DC. M8 studs, IP67 sealed, operating −40°C to +85°C. Weight 0.95 lb (0.43 kg). |
$ 283.79
-
+
|
|
1-2 weeks delivery time The Blue Sea 7929 Contura II Switch is an SPST OFF-ON rocker switch with black Contura II actuator and integrated LED indicator. Rated 20A at 12V and 15A at 24V, with LED current 18 mA and LED life 100,000 hours. Operating range −40°C to +85°C, with internal and external gasket seals for panel mounting in Contura water-resistant panels. Weight 0.08–0.09 lb. |
$ 27.06
-
+
|
|
1-2 weeks delivery time The Blue Sea 7930 Contura II Switch is an SPST rocker switch with OFF-(ON) momentary action, rated 20A at 12V and 15A at 24V for DC loads such as horns and windshield wipers. Black Contura II actuator, no LED, with internal and external gasket seals. Operating range −40°C to +85°C. Weight 0.08–0.09 lb. |
$ 30.73
-
+
|
|
1-2 weeks delivery time The Blue Sea 7937 Contura II Switch is a DPDT rocker switch with (ON)-OFF-ON action, rated 20A at 12V and 15A at 24V, with single LED indicator (18 mA) and black Contura II actuator. Intended for DC circuits such as dual wipers. Operating range −40°C to +85°C with internal and external gasket seals. Weight 0.08–0.09 lb. |
$ 34.42
-
+
|
|
1-2 weeks delivery time The Blue Sea 7938 Contura II Switch is a DPDT rocker switch with (ON)-OFF-(ON) momentary action, rated 20A at 12V and 15A at 24V for DC circuits such as power operated hatches. Black Contura II actuator, no LED, with internal and external gasket seals. Operating range −40°C to +85°C. Weight 0.08–0.09 lb. |
$ 34.42
-
+
|
|
1-2 weeks delivery time The Blue Sea 7943 Contura II Switch is an SPDT rocker switch with ON-OFF-(ON) action for bilge pump circuits, rated 20A at 12V DC and 15A at 24V DC. Features black Contura II actuator and single LED indicator (18 mA) active in the momentary ON position. Operating range −40°C to +85°C with internal and external gasket seals. Weight 0.08 lb (0.04 kg). |
$ 27.89
-
+
|
|
1-2 weeks delivery time The Blue Sea 7945 Contura III Switch is an SPDT rocker switch with (ON)-OFF-ON action for bilge pump circuits, rated 20A at 12V DC and 15A at 24V DC. Features black Contura III actuator and single LED indicator (18 mA) active in the momentary ON position. Operating range −40°C to +85°C with internal and external gasket seals. Weight 0.08 lb (0.04 kg). |
$ 35
-
+
|
|
1-2 weeks delivery time The Blue Sea 8003 is a DC analog voltmeter with 8–16V measurement range and 2.75 in (69.85 mm) face size, using a simple 4-wire connection with meter power from the same circuit. Features backlit dial with separate 12V or 24V DC backlight connections. Backlight draw 16 mA @ 12V / 20 mA @ 24V. Meter current 1 mA at full scale. Weight 0.25 lb (0.11 kg). |
$ 72.78
-
+
|
|
1-2 weeks delivery time The Blue Sea 8005 is a DC analog ammeter with 0–25A range and internal shunt, using a simple 4-wire connection and 2.75 in (69.85 mm) face size. Features backlit dial with separate 12V or 24V DC backlight connections. Backlight draw 16 mA @ 12V / 20 mA @ 24V. Meter current 1 mA at full scale. Weight 0.25–0.26 lb (0.11–0.12 kg). |
$ 77.68
-
+
|
|
1-2 weeks delivery time The Blue Sea 8015 is a DC analog voltmeter panel with integrated 8003 meter (8–16V DC) and 3-position switch for monitoring multiple battery banks. Voltmeter is mounted in a 0.125″ aluminum 5052 alloy panel. Panel size 3.75 × 5.25 in (95.25 × 133.35 mm). Maximum voltage 16V DC. Weight 0.49 lb (0.22 kg). |
$ 209.04
-
+
|
|
1-2 weeks delivery time The Blue Sea 8023 is a traditional metal DC panel with 8 circuit positions, fully pre-wired with positive, negative, and grounding buses. Rated up to 100A for 12V or 24V DC systems. Features backlit circuit label positions and ON-indicating LEDs on all circuits. Panel size 7.50 × 5.25 in (190.5 × 133.35 mm). Includes five 15A single-pole breakers PN 7210 and a 30-label set PN 8030. Weight 1.95 lb (0.88 kg). |
$ 504.38
-
+
|
|
1-2 weeks delivery time The Blue Sea 8033 is an amber LED indicator lamp for 12V and 24V DC panels with push-in mounting for 11/64 in (4.37 mm) holes. Designed for circuit breaker panels as indicator or alarm light. Current draw 1.5 mA @ 12V and 3.1 mA @ 24V. Power consumption 19 mW @ 12V and 75 mW @ 24V. Wire gauge 26. Weight 0.03 lb (0.01 kg). |
$ 5.40
-
+
|
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.