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 7054 Push Button Reset Only Circuit Breaker is a 10A thermal branch breaker for DC systems up to 32V, designed for panel mounting with 3/8-27 UNS thread and 1/4" male quick connect terminals. It features manual push-button reset, trip-free protection, and a compact body for high-density circuit layouts. Interrupt capacity is 3000A @ 14.7V and 2500A @ 28V, operating temperature -10°C to +60°C, and the breaker is ignition protected for gasoline engine compartments.
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$ 10.48
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1-2 weeks delivery time The Blue Sea 7056 Push Button Reset Only Circuit Breaker is a 15A thermal branch breaker for DC systems up to 32V, designed for panel mounting with 3/8-27 UNS thread and 1/4" male quick connect terminals. It features manual push-button reset, trip-free protection, and a compact housing for high-density installations. Rated for 3000A @ 14.7V and 2500A @ 28V interrupt capacity, with operating temperature -10°C to +60°C, and is ignition protected for gasoline engine compartments.
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$ 10.48
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1-2 weeks delivery time The Blue Sea 7057 Push Button Reset Only Circuit Breaker is a 20A thermal branch breaker for DC systems up to 32V, designed for panel mount 3/8-27 UNS with 1/4" male quick connect terminals. It features manual push-button reset, trip-free protection, and a compact housing for high-density circuit layouts. Rated for 3000A @ 14.7V and 2500A @ 28V interrupt capacity, operating range -10°C to +60°C, and is ignition protected for gasoline engine compartments.
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$ 10.16
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1-2 weeks delivery time The Blue Sea 7058 Push Button Reset Only Circuit Breaker is a 25A thermal branch breaker for DC systems up to 32V, designed for panel mount 3/8-27 UNS with 1/4" male quick connect terminals. It features manual push-button reset, trip-free protection, and a compact body for high-density circuit layouts. Rated at 3000A @ 14.7V and 2500A @ 28V interrupt capacity, with operating range -10°C to +60°C, and ignition protected for gasoline engine compartments.
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$ 10.32
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1-2 weeks delivery time The Blue Sea 7059 Push Button Reset Only Circuit Breaker is a 30A thermal branch breaker for DC systems up to 32V, designed for panel mount 3/8-27 UNS with 1/4" male quick connect terminals. It features manual push-button reset, trip-free protection, and a compact form factor for high-density circuit layouts. Rated at 3000A @ 14.7V and 2500A @ 28V interrupt capacity, with operating range -10°C to +60°C, and ignition protected for gasoline engine compartments.
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$ 10.66
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1-2 weeks delivery time The Blue Sea 7081 285-Series Circuit Breaker is a 30A panel-mount DC breaker rated up to 48V DC, designed as a drop-in replacement for 185-Series models. It combines switching and circuit protection in one device with a trip-free thermal bi-metal mechanism, manual reset, and a visible reset lever to indicate open status. Features include M6 stud terminals for 1/4" ring lugs, 3000A @ 48V interrupt capacity (SAE J1625), operating range -40°C to +85°C, and ignition protected, IP67 weather-resistant construction.
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$ 94.93
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1-2 weeks delivery time The Blue Sea 7082 285-Series Circuit Breaker is a 40A panel-mount DC breaker rated up to 48V DC, designed as a drop-in replacement for 185-Series models. It combines switching and circuit protection in one unit with a trip-free thermal bi-metal mechanism, manual reset, and a visible reset lever showing open status. Features include M6 terminal studs for 1/4" ring terminals, 3000A @ 48V interrupt capacity (SAE J1625), operating range -40°C to +85°C, and ignition protected, IP67 weather-resistant construction.
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$ 94.93
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1-2 weeks delivery time The Blue Sea 7083 285-Series Circuit Breaker is a 50A panel-mount DC breaker rated up to 48V DC, designed as a drop-in replacement for 185-Series models. It combines switching and circuit protection in one unit with a trip-free thermal bi-metal mechanism, manual reset, and a visible reset lever to show open status. It features M6 terminal studs for 1/4" ring terminals, 3000A @ 48V DC interrupt capacity (SAE J1625), operating range -40°C to +85°C, and ignition protected, IP67 weather-resistant construction.
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$ 94.93
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1-2 weeks delivery time The Blue Sea 7084 285-Series Circuit Breaker is a 60A panel-mount DC breaker rated up to 48V DC, built as a drop-in replacement for 185-Series models. It combines switching and circuit protection in one unit with a trip-free thermal bi-metal mechanism, manual reset, and a visible reset lever for status indication. The breaker uses M6 studs for 1/4" ring terminals, provides 3000A @ 48V DC interrupt capacity (SAE J1625), operates from -40°C to +85°C, and features ignition protected, IP67 weather-resistant construction.
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$ 94.93
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1-2 weeks delivery time The Blue Sea 7085 285-Series Circuit Breaker is a 70A panel-mount DC breaker rated up to 48V DC, designed as a drop-in replacement for 185-Series models. It combines switching and circuit protection in one unit with a trip-free thermal bi-metal mechanism, manual reset, and a visible reset lever for open-status indication. It features M6 terminal studs for 1/4" ring terminals, 3000A @ 48V DC interrupt capacity (SAE J1625), an operating range of -40°C to +85°C, and ignition protected, IP67 weather-resistant construction.
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$ 90.09
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1-2 weeks delivery time The Blue Sea 7086 285-Series Circuit Breaker is a panel-mount 80A DC breaker rated up to 48V DC, designed as a drop-in replacement for 185-Series models. It integrates switching and circuit protection with a trip-free thermally responsive bi-metal mechanism, manual reset, and a visible reset lever indicating open condition. The breaker uses M6 terminal studs for 1/4" ring terminals, provides 3000A @ 48V DC interrupt capacity (SAE J1625), operates from -40°C to +85°C, and features ignition protected, IP67 weather-resistant construction.
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$ 94.93
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1-2 weeks delivery time Blue Sea Series 285 80 A flush mount circuit breaker combining switching and thermal protection in a sealed, weather-resistant housing with 3000 A interrupt capacity and explosion-proof design for reliable circuit safety.
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$ 81.58
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1-2 weeks delivery time The Blue Sea 7087 285-Series Circuit Breaker is a 100A panel-mount DC breaker rated up to 48V DC, designed as a drop-in replacement for 185-Series models. It combines switching and circuit protection in one unit with a trip-free thermally responsive bi-metal mechanism, manual reset, and a visible reset lever showing open status. It features M6 studs for 1/4" ring terminals, 3000A @ 48V DC interrupt capacity (SAE J1625), operating temperature -40°C to +85°C, and ignition protected, IP67 weather-resistant construction.
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$ 94.93
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1-2 weeks delivery time The Blue Sea 7088 285-Series Circuit Breaker is a 120A panel-mount DC breaker rated up to 48V DC, designed as a drop-in replacement for 185-Series models. It combines switching and circuit protection in one unit using a trip-free thermally responsive bi-metal mechanism with manual reset and a visible reset lever for status indication. The breaker features M6 studs for 1/4" ring terminals, 3000A @ 48V DC interrupt capacity (SAE J1625), operating temperature -40°C to +85°C, and ignition protected, IP67 weather-resistant construction.
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$ 94.93
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1-2 weeks delivery time Blue Sea Series 285 120 A flush mount circuit breaker providing combined switching and thermal overload protection in a weather-resistant, explosion-proof housing with 3000 A interrupt capacity for demanding electrical installations.
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$ 81.58
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1-2 weeks delivery time The Blue Sea 7089 285-Series Circuit Breaker is a 150A panel-mount DC breaker rated up to 48V DC, designed as a drop-in replacement for 185-Series models. It combines switching and circuit protection in one unit with a trip-free thermally responsive bi-metal mechanism and manual reset lever with visible open indication. The unit features M6 studs for 1/4" ring terminals, 3000A @ 48V DC interrupt capacity (SAE J1625), operating range -40°C to +85°C, and ignition protected, IP67 weather-resistant construction for marine installations.
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$ 94.93
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1-2 weeks delivery time The Blue Sea 7135 187-Series Circuit Breaker is a 25A surface-mount Type III breaker rated up to 48V DC, combining switching and circuit protection in a single waterproof unit. It features a thermally responsive bi-metal blade, trip-free manual reset lever, 5/16″-18 (M8) studs, and ignition protection for gasoline-powered boats. Interrupt rating up to 5000A @ 14V DC. Weight: 0.58 lb (0.26 kg).
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$ 151.53
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1-2 weeks delivery time The Blue Sea 7136 187-Series Circuit Breaker is a 30A surface-mount Type III breaker for 48V DC systems, combining switching and circuit protection in one waterproof unit. It features a thermally responsive bi-metal blade, trip-free manual reset lever, and 5/16″-18 (M8) studs for high-torque connections. Ignition protected and rated up to 5000A @ 14V DC interrupt capacity. Weight: 0.58 lb (0.26 kg).
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$ 144.80
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1-2 weeks delivery time The Blue Sea 7138 187-Series Circuit Breaker is a 40A surface-mount Type III breaker for 48V DC systems, combining switching and circuit protection in one waterproof unit. It uses a thermally responsive bi-metal blade and a trip-free manual reset lever, with 5/16″-18 (M8) studs for high-torque cable connections. Ignition protected and rated up to 5000A @ 14V DC interrupt capacity. Weight: 0.58 lb (0.26 kg).
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$ 144.80
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1-2 weeks delivery time The Blue Sea 7139 187-Series Circuit Breaker is a 50A surface-mount Type III breaker for 48V DC systems, combining switching and circuit protection in a single waterproof unit. It features a thermally responsive bi-metal blade and trip-free manual reset lever, with 5/16″-18 (M8) stud terminals for high-torque cable connections. Ignition protected and rated up to 5000A @ 14V DC interrupt capacity. Weight: 0.58 lb (0.26 kg).
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$ 152.60
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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.