Kollektion: Blue Sea Systems

Blue Sea Systems: Excellence in Marine Electrical

Blue Sea Systems, an American manufacturer established in 1986 and based in Bellingham, Washington, is a global leader in marine electrical equipment. Specializing in electrical distribution systems, circuit breaker protection, battery isolators, and control panels, Blue Sea Systems equips luxury yachts, professional work vessels, and offshore racing sailboats alike. The brand is recognized for its exceptional manufacturing quality, strict compliance with ABYC (American Boat and Yacht Council) and ISO standards, and detailed technical documentation that simplifies installation and maintenance. Skysat understands the critical importance of reliable and safe electrical distribution onboard and offers its expertise to design and integrate robust, scalable, and perfectly sized Blue Sea Systems electrical solutions.

Circuit Breakers and Electrical Protection

Blue Sea Systems circuit breakers are the core of onboard electrical protection, providing fast and reliable interruption in case of overload or short circuit. Unlike traditional fuses, circuit breakers are resettable, simplifying maintenance and reducing downtime. The Blue Sea Systems range covers all necessary amperages onboard, from small electronic equipment to high-power circuits like bow thrusters or windlasses.

• 7000 Series (Thermal Circuit Breakers): Compact and robust thermal circuit breakers, available from 5A to 100A. Thermal and magnetic protection, UL 1077 certified and ABYC compliant. DIN rail or direct mounting, silver-plated contacts for low resistance.
• A-Series Toggle (Toggle Circuit Breakers): Thermal circuit breakers with integrated toggle switch, ideal for control panels. Available from 5A to 50A, compact size, IP56 rated against water splashes.
• C-Series Toggle (Magneto-Hydraulic Circuit Breakers): High-performance circuit breakers with magneto-hydraulic trip, minimizing nuisance tripping due to inrush currents. Available from 5A to 100A, ideal for equipment with high starting surges (compressors, electric motors).
• 187 Push-Button Series (Push-Button Circuit Breakers): Thermal circuit breakers in a push-button format, for front panel mounting. Optimal ergonomics, easy reset, available from 5A to 50A.

Battery Isolators and Switches

Blue Sea Systems battery isolators allow for electrical disconnection of batteries for maintenance, winter storage, or emergencies. Essential for onboard safety, they also serve as a robust connection point for heavy-gauge battery cables. The Blue Sea Systems range offers solutions for all configurations, from simple ON/OFF switches to complex multi-bank selector switches with parallel capability.

• m-Series (Mini Battery Switches): Compact battery switches for currents up to 300A continuous (600A cranking). Screw terminals, IP67 waterproof housing, ideal for compact installations or house batteries.
• e-Series (Battery Switches): Robust battery switches for currents up to 500A continuous (2500A cranking). Silver-plated contacts, compression terminals, choice between ON/OFF models or 1-BOTH-2-OFF selectors for multi-bank management.
• HD Series (Heavy Duty Battery Switches): High-power battery switches for professional applications, up to 600A continuous. Reinforced construction, solid silver-plated contacts, certified for extreme marine applications.
• ACR (Automatic Charging Relays): Automatic charging relays for intelligent multi-bank management. Allows simultaneous charging of engine and house batteries without risk of mutual discharge. Integrates with modern chargers and alternators.
• ML-Series (Remote Battery Switches): Remotely operated battery switches, solenoid-actuated. Allows installation of the switch directly on the batteries (engine compartment) with remote control from the dashboard. Optimal safety and simplified wiring.

Bus Bars and Electrical Panels

Blue Sea Systems bus bars and electrical panels help organize and streamline onboard electrical distribution. By consolidating common connections (ground, positive, fused circuits), they simplify installation, improve reliability, and facilitate troubleshooting. Blue Sea Systems offers modular and scalable solutions for all vessel sizes.

• Common Bus Bars: Bus bars for consolidating common connections (ground or positive). Available in various sizes (6, 12, 20, 30 connections), nickel-plated copper construction, full electrical insulation, simplified mounting.
• SafetyHub (Fused Distribution Hubs): Distribution hubs integrating individual fuse holders for each circuit. Available in 100A or 150A input versions, 4 or 6 output circuits. ATO/ATC fuse protection, transparent protective covers, blown fuse indicator LEDs.
• 360 Panels (Control Panels): Pre-fabricated electrical panels combining circuit breakers, digital voltmeter, and circuit monitoring. Available in 4, 6, 8, or 12-circuit versions. Flush mounting, anodized aluminum finish, IP66 rated.
• Custom Panels: Blue Sea Systems also offers custom electrical panels, assembled to exact project specifications. Ideal for professional vessels or complex refits.

Fuse Holders and Fuse Blocks

Blue Sea Systems fuse holders provide individual protection for each onboard electrical circuit. Available in numerous formats (ANL, MIDI, MEGA, ATO/ATC), they allow for protection precisely sized for each piece of equipment. Waterproof construction and high-quality materials ensure long-term reliability in corrosive marine environments.

• ANL Fuse Blocks Series: Fuse holders for ANL fuses (high power), covering amperages from 35A to 750A. Ideal for main circuits, inverters, thrusters, windlasses. Compression terminals, full insulating housing.
• MEGA/MIDI Fuse Blocks Series: Fuse holders for MEGA and MIDI formats (medium to high amperages). Compact construction, suitable for distribution sub-panels and medium power circuits.
• ATO/ATC Fuse Blocks Series: Fuse holders for standard automotive ATO/ATC fuses. Available in 6 or 12-circuit versions, with common or independent terminals. Transparent protective covers, simplified mounting.
• IP67 Waterproof Fuse Holders Series: IP67 waterproof fuse holders for exposed environments (engine compartments, exterior decks). Watertight connections, screw-on cover with O-ring seal.

Accessories and Electrical Instrumentation

Blue Sea Systems also offers a comprehensive range of accessories and electrical monitoring instruments, allowing for real-time monitoring of the onboard electrical system status and anticipation of problems before they become critical.

• Digital Voltmeters and Ammeters: Accurate monitoring instruments for voltage and current surveillance. High-brightness LED display, flush mounting, compatible with 12V, 24V, 32V systems.
• Battery Monitoring Panels: Battery monitoring panels integrating voltmeter, ammeter, and multi-bank monitoring. Remaining battery capacity calculation function and deep discharge alert.
• Shunt Resistors: Precision shunts for DC current measurement, available from 50A to 500A. 0.5% accuracy, compatible with Blue Sea Systems instruments or third-party monitoring systems.
• Terminal Blocks and Connections: Connection blocks, terminal strips, wiring terminals for clean and professional installations. Marine-grade materials, full insulation, DIN rail mounting.

💡 Skysat Tip

To ensure a safe and durable electrical installation, Skysat recommends systematically using circuit breakers rather than fuses for all accessible circuits. Always size circuit breakers based on the cable gauge (never solely based on the equipment) to protect the wiring from overheating. For multi-bank installations, prioritize the use of ACR (Automatic Charging Relays) coupled with individual switches per bank, ensuring intelligent charge management while maintaining complete isolation for maintenance. Finally, always integrate voltage and current monitoring to anticipate electrical problems before they compromise onboard safety or comfort.