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.
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1-2 weeks delivery time The Blue Sea 5285 GMA Fuse 10A is a compact fuse designed for circuit protection in electronic applications commonly used in 12/24V DC systems. Rated at 10A, it supports a maximum voltage of 125V AC / 24V DC and features a visible indication of a blown condition for fast inspection and replacement. Supplied three per retail package, it weighs 0.03 lb (0.01 kg) and is suitable for space-efficient installations. |
$ 3.77
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1-2 weeks delivery time The Blue Sea 5290 easyID Fuse Kit is a fast-acting ATC blade fuse assortment designed to make blown fuses easy to identify using LED illumination technology. Each easyID ATC fuse illuminates when blown, providing a clear visual indicator in fuse panels installed in low-light areas such as dashboards. This kit replaces standard ATO or ATC non-illuminating fuses and includes 27 fuses total (3 pieces each) in ratings 3A, 5A, 7.5A, 10A, 15A, 20A, 25A, 30A, and 40A. Total kit weight is 0.09 lb (0.04 kg). |
$ 49.81
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1-2 weeks delivery time The Blue Sea 5292 easyID ATC Fuse 5A is a fast-acting illuminated blade fuse designed to simplify blown fuse identification using LED technology. The fuse illuminates when blown, making it easy to spot in fuse panels installed in low-light locations such as under dashboards. Rated at 5A with an interrupt capacity of 1000A @ 32V DC, it features tin-plated blades for reliable electrical connection and is supplied two per retail package, replacing standard non-illuminating ATO or ATC fuses. |
$ 8.68
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1-2 weeks delivery time The Blue Sea 5502 Class T Fuse Block with Insulating Cover is a heavy-duty fuse holder designed for high-speed short-circuit response, recommended by many inverter manufacturers. It supports Class T fuses from 225A to 400A (fuse sold separately) and is rated for systems up to 160V DC with a maximum amperage of 400A. The block uses large tin-plated copper mounting blocks for heat dissipation, features 3/8"-16 (M10) stud terminals for ring terminals and cable up to 4/0 AWG, and includes a clear insulating cover that satisfies ABYC/USCG requirements. Maximum torque is 190 in-lb (21.47 Nm), mounting holes accept 1/4" (M6) screws, and unit weight is 1.10 lb (0.5 kg). |
$ 108.19
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1-2 weeks delivery time The Blue Sea 5502100 Class T Fuse Block supports 225–400A Class T fuses with maximum system voltage 160V DC and cable capacity up to 4/0 AWG. It features tin-plated copper fuse blocks, stainless steel 5/16"-18 (M8) studs, insulating cover with multi-direction breakouts, and UL94-V0 heat-resistant base. Maximum recommended current is 320A (300A continuous inside engine space), with best practice to limit circuit load to 80% of fuse rating. Weight: 1.10 lb (0.5 kg). |
$ 149.76
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1-2 weeks delivery time The Blue Sea 5503 ANL Fuse Block with Insulating Cover is a heavy-duty 32V DC fuse holder for ANL fuses (35–750A), featuring a swing-out design for quick fuse replacement and an ABYC/USCG-compliant insulating cover. It uses stainless steel 5/16" (M8) studs, accepts 4/0 AWG cable with tin-plated copper mounting blocks, and provides reliable high-current connections with a maximum torque of 107 in-lb (12.09 Nm). |
$ 94.93
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Blue Sea 5511e – e-Series Dual Circuit Plus™ Battery Switch, 350A Continuous, 32V DC, M10 Studs, Red
1-2 weeks delivery time The Blue Sea 5511e e-Series Dual Circuit Plus™ Battery Switch simultaneously switches two isolated battery banks or combines them to all loads and features a make-before-break design. Rated 350A continuous, 525A intermittent (5 min), and 700A cranking per circuit (30 sec) for systems up to 32V DC, it uses 3/8"-16 (M10) tinned copper studs with 140 in-lb torque and supports cables up to 4/0 AWG. Weight: 1.16 lb (0.53 kg). |
$ 117.47
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1-2 weeks delivery time The Blue Sea 6004 m-Series Battery Switch is a single-circuit ON/OFF switch with a locking key, rated for 48V DC and 300A continuous (500A intermittent / 900A starting). It features tinned copper 3/8" (M10) studs with 7/8" (22 mm) stud length for multiple ring terminals, IP66 ignition-protected construction, and an isolating rear cover with breakout tabs for cable routing in any direction. |
$ 59.67
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1-2 weeks delivery time The Blue Sea 6004200 is a single circuit ON-OFF battery switch rated 300A continuous, 500A intermittent, and 900A cranking (30 sec) for systems up to 48V DC. It features 3/8" (M10) tinned copper studs with 120 in-lb torque rating, 7/8" (22 mm) stud length for multiple terminals, IP66 protection, ignition protection, and a locking key mechanism. Weight: 0.65 lb (0.29 kg). |
$ 59.67
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1-2 weeks delivery time The Blue Sea 6005 m-Series Mini ON/OFF Battery Switch is a single-circuit battery isolator with a locking key, rated for 48V DC and 300A continuous (500A intermittent / 900A starting). It supports 4/0 AWG (120mm²) cable with 3/8"-16 (M10) tinned copper studs, provides 1.12 in (28.45 mm) cable clearance for 4/0 wiring, and allows surface, front panel, or rear panel mounting. The switch is ignition protected and IP66, and includes an isolating rear cover to protect contacts. |
$ 57.49
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1-2 weeks delivery time The Blue Sea 6006 m-Series Mini ON/OFF Battery Switch is a single-circuit switch rated for 48V DC and 300A continuous (500A intermittent / 900A starting). It supports 4/0 AWG (120mm²) cable using 3/8"-16 (M10) tinned copper studs, provides 1.12 in (28.45 mm) cable clearance for 4/0 wiring, and allows surface, front panel, or rear panel mounting. The switch is ignition protected, IP66, and includes an isolating rear cover to protect contacts. |
$ 60.35
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1-2 weeks delivery time The Blue Sea 6006200 m-Series Mini Battery Switch is a single-circuit ON-OFF switch rated 300A continuous, 500A intermittent (5 min), and 900A cranking (30 sec) for systems up to 48V DC. It features 3/8"-16 (M10) tinned copper studs with 120 in-lb torque rating, supports 4/0 AWG cables, and provides IP66 and ignition protection. Weight: 0.65 lb (0.29 kg). |
$ 60.35
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1-2 weeks delivery time The Blue Sea 6007 m-Series Mini Selector Battery Switch is a 4-position selector (battery combine: Yes) designed to switch two isolated battery banks to all loads or combine battery banks without interruption thanks to its make-before-break design. Rated for 32V DC and 300A continuous (500A intermittent / 900A starting), it supports 4/0 AWG (120mm²) cable using 3/8"-16 (M10) tinned copper studs, with 120 in-lb (13.56 Nm) terminal torque and 1.12 in (28.45 mm) cable clearance. |
$ 76.75
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1-2 weeks delivery time The Blue Sea 6008 m-Series Selector Battery Switch is a 3-position selector designed for 32V DC systems, allowing selection between two battery inputs without battery combining. Rated 300A continuous (500A intermittent / 900A starting), it supports 4/0 AWG (120mm² / 130mm²) cable using 3/8"-16 (M10) tinned copper studs, with 1.12 in (28.45 mm) cable clearance and 120 in-lb (13.56 Nm) terminal torque. The switch is ignition protected, IP66, and allows surface or rear panel mounting. |
$ 91.03
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1-2 weeks delivery time The Blue Sea 6010 m-Series Mini Dual Circuit Battery Switch is a 2-position dual circuit switch designed to simultaneously switch two isolated battery banks, rated for 32V DC and 300A continuous (450A intermittent / 675A starting per circuit). It supports 4/0 AWG (120mm²) cable using 3/8"-16 (M10) tinned copper studs, provides 1.12 in (28.45 mm) cable clearance, and is ignition protected with an IP66 rating. |
$ 100.57
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1-2 weeks delivery time The Blue Sea 6010200 m-Series Mini Dual Circuit Battery Switch simultaneously switches two isolated battery banks and is rated 300A continuous, 450A intermittent (5 min), and 675A cranking per circuit (30 sec) for systems up to 32V DC. It features 3/8"-16 (M10) tinned copper studs with 120 in-lb torque rating, supports cables up to 4/0 AWG, and is ignition protected with IP66 rating. Weight: 0.80 lb (0.36 kg). |
$ 95.79
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1-2 weeks delivery time The Blue Sea 6011 m-Series Mini Dual Circuit Plus™ Battery Switch is a 3-position switch that can simultaneously switch two isolated battery banks or combine battery banks to supply all loads, using a make-before-break contact design to prevent power interruption during switching. Rated for 32V DC and 300A continuous (450A intermittent / 675A starting per circuit), it supports 4/0 AWG (120mm²) cable with 3/8"-16 (M10) tinned copper studs, 1.12 in (28.45 mm) cable clearance, and 120 in-lb (13.56 Nm) stud torque. |
$ 95.79
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1-2 weeks delivery time The Blue Sea 6011200 m-Series Mini Dual Circuit Plus™ Battery Switch simultaneously switches two isolated battery banks or combines them to all loads. Rated 300A continuous, 450A intermittent (5 min), and 675A cranking per circuit (30 sec) for systems up to 32V DC, it features 3/8"-16 (M10) tinned copper studs, supports cables up to 4/0 AWG, and includes make-before-break contacts, IP66 rating, and ignition protection. Weight: 0.80 lb (0.36 kg). |
$ 95.79
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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.