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 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.
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$ 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).
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$ 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.
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$ 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.
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$ 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.
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$ 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).
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$ 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.
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$ 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).
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$ 95.79
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1-2 weeks delivery time The Blue Sea 7035 187-Series Circuit Breaker is a 25A panel-mount, Type III trip-free breaker combining switching and circuit protection in one device for up to 48V DC systems. It features a thermally responsive bi-metal blade, IP66 waterproof and ignition-protected construction, and 5/16"-18 (M8) terminals 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.
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$ 151.37
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1-2 weeks delivery time The Blue Sea 7036 187-Series Circuit Breaker is a 30A panel-mount, Type III trip-free breaker combining switching and circuit protection for systems up to 48V DC. It uses a thermally responsive bi-metal blade, features IP66 waterproof and ignition-protected construction, and includes 5/16"-18 (M8) terminals with 75 in-lb (8.47 Nm) torque. Interrupt capacity is 5000A @ 14VDC, 3000A @ 28VDC, and 1500A @ 48VDC, with an operating range from -40°C to +85°C.
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$ 144.80
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1-2 weeks delivery time The Blue Sea 7038 187-Series Circuit Breaker is a 40A panel-mount, Type III trip-free breaker that combines switching and circuit protection for systems up to 48V DC. It features a thermally responsive bi-metal blade, IP66 waterproof and ignition-protected construction, and 5/16"-18 (M8) terminals 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.
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$ 144.80
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1-2 weeks delivery time The Blue Sea 7039 187-Series Circuit Breaker is a 50A panel-mount, Type III trip-free breaker that combines switching and circuit protection for systems up to 48V DC. It features a thermally responsive bi-metal blade, IP66 waterproof and ignition-protected construction, and 5/16"-18 (M8) terminals 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.
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$ 152.60
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1-2 weeks delivery time The Blue Sea 7041 187-Series Circuit Breaker is a 70A panel-mount, Type III trip-free breaker that combines switching and circuit protection in one device for DC systems up to 48V. It uses a thermally responsive bi-metal blade, features IP66 waterproof and ignition-protected construction, and is fitted with 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.
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$ 152.60
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1-2 weeks delivery time The Blue Sea 7042 187-Series Circuit Breaker is an 80A panel-mount, Type III trip-free breaker that combines switching and circuit protection for DC systems up to 48V. It uses a thermally responsive bi-metal blade, features IP66 waterproof and ignition-protected construction, and is equipped with 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.
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$ 152.60
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1-2 weeks delivery time The Blue Sea 7043 187-Series Circuit Breaker is a 90A panel-mount, Type III trip-free breaker for DC systems up to 48V, combining switching and circuit protection in one device. It uses a thermally responsive bi-metal blade, features IP66 waterproof and ignition-protected construction, and has 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.
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$ 174.08
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1-2 weeks delivery time The Blue Sea 7046 187-Series Circuit Breaker is a 120A panel-mount, Type III trip-free breaker for DC systems up to 48V, combining manual switching and circuit protection in one device. It uses a thermally responsive bi-metal blade, features IP66 waterproof and ignition-protected construction, and has 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.
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$ 152.60
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1-2 weeks delivery time The Blue Sea 7047 187-Series Circuit Breaker is a 135A panel-mount, Type III trip-free breaker for DC systems up to 48V, combining switching and circuit protection in one device. It uses a thermally responsive bi-metal blade, has IP66 waterproof and ignition-protected construction, and features 5/16"-18 (M8) terminal studs with 75 in-lb (8.47 Nm) torque. Interrupt capacity is 5000A @ 12V DC, 3000A @ 24V DC, and 1500A @ 42V DC, with an operating temperature range of -40°C to +85°C.
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$ 141.58
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1-2 weeks delivery time The Blue Sea 7048 187-Series Circuit Breaker is a 150A 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.
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$ 174.08
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1-2 weeks delivery time Blue Sea heavy-duty 200 A flush mount circuit breaker from Series 187 with IP66 protection, designed for high fault current interruption up to 5000 A at 14 V, using bimetallic contacts and explosion-proof construction for harsh environments.
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$ 189.20
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1-2 weeks delivery time The Blue Sea 7053 Push Button Reset Only Circuit Breaker is a 7A 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 compact construction for high-density circuit layouts. Interrupt capacity is 3000A @ 14.7V and 2500A @ 28V, operating temperature -10°C to +60°C, and the unit is ignition protected for gasoline engine compartments.
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$ 10.56
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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.