A Blue Sea Systems battery switch is a crucial component of marine electrical systems. It allows boat owners to control power distribution between multiple batteries, providing flexibility and safety.
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1-2 weeks delivery time The Blue Sea 7713 ML-RBS is a 12V DC auto-releasing magnetic latching remote battery switch rated 500A continuous for high-current circuits. Supports remote and manual control with LOCKED OFF override, SPST/SPDT control, and LED state output. Ratings: 500A continuous, 700A 5 min, 1000A 30 sec. Control voltage 10.1–16.5V DC. Studs 3/8"-16, length 22.23 mm, cable size up to 2×(4/0). Operating −10°C to +60°C. Weight 2.07 lb (0.94 kg). ABYC C-7, CE, IP66, ISO 8846, SAE J1171.
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$ 447.57
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1-2 weeks delivery time The Blue Sea 5510e e-Series Dual Circuit Battery Switch simultaneously switches two isolated battery banks and is rated 350A continuous, 525A intermittent (5 min), and 700A cranking per circuit (30 sec) for systems up to 32V DC. It features 3/8"-16 (M10) tinned copper studs with 140 in-lb torque rating, supports 4/0 AWG cables, and provides ignition protection with IP66 rating. Weight: 1.16 lb (0.53 kg).
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$ 123.94
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1-2 weeks delivery time The Blue Sea 7700 ML-RBS Remote Battery Switch is a 12V DC magnetic latching switch rated for 500A continuous current, designed for high-amperage battery switching under load from remote or manual control. It features a manual override knob with LOCKED OFF service position, bi-stable coil, silver alloy contacts, and 3/8"-16 tin-plated copper studs with 7/8" (22 mm) length for multiple cable terminals. Ratings include 500A continuous, 700A for 5 minutes, and 1000A cranking (30 sec). Operating range −10°C to +60°C. Mechanical endurance: 100,000 cycles. Weight: 2.05 lb (0.93 kg). CE marked, IP66, ignition protected, ISO 8846, SAE J1171.
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$ 386.72
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1-2 weeks delivery time The Blue Sea 11003 is a heavy-duty HD-Series 3-position battery selector switch rated 400A continuous and 32V DC for switching isolated battery banks to all loads. Includes Alternator Field Disconnect (AFD), accepts two 4/0 AWG cables per terminal, and features 1/2″ (M12) studs. Cable clearance: 27.94 mm. Weight: 0.57–0.59 kg.
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$ 200.62
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1-2 weeks delivery time The Blue Sea 11001 is a 3-position e-Series battery selector switch rated 325A continuous and 32V DC, designed for switching a single battery to a single load group. Includes Alternator Field Disconnect (AFD) protection, supports 4/0 AWG cables, and features 3/8″ (M10) studs. Dimensions support surface or rear mounting. Weight: 0.52–0.59 kg.
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$ 104.44
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1-2 weeks delivery time The Blue Sea 3000 is a heavy-duty single-circuit ON/OFF battery switch rated for 500 A continuous, 900 A intermittent (5 min), and 1750 A cranking (30 s), supporting 32 V DC, with 1/2" (M12) terminal studs, accepting two 4/0 AWG (120 mm²) cables, and providing IP66 ignition-protected operation.
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$ 168.48
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Blue Sea 3001 – HD-Series Heavy Duty Battery Switch with AFD, Single Circuit ON/OFF, 500A Continuous
1-2 weeks delivery time The Blue Sea 3001 is a heavy-duty single-circuit ON/OFF battery switch with AFD (Alternator Field Disconnect), rated for 500 A continuous, 900 A intermittent (5 min), and 1750 A cranking (30 s), supporting 32 V DC, with 1/2" (M12) terminal studs, accepting two 4/0 AWG (120 mm²) cables, and providing IP66 ignition-protected operation.
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$ 192.51
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1-2 weeks delivery time The Blue Sea 3002 HD-Series Heavy Duty Selector Battery Switch is a 4-position selector switch designed to manage two isolated battery banks, allowing selection or combination of battery banks to all loads. It features a make-before-break contact design for uninterrupted power switching, supports up to 400A continuous current at 32V DC, and accepts 4/0 AWG (120 mm²) battery cables. The switch is ignition protected, IP66 rated, and suitable for surface or rear panel mounting on gasoline-powered boats.
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$ 175.50
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1-2 weeks delivery time The Blue Sea 3003 HD-Series Selector Battery Switch is a 4-position heavy-duty battery switch with integrated Alternator Field Disconnect (AFD) for two battery banks. Rated 400A continuous, 700A intermittent (5 min), 1600A cranking (30 s) at 32V DC, it features make-before-break contacts, battery combine function, and supports 4/0 AWG (120 mm²) cables. Ignition protected, IP66 rated, suitable for surface or rear panel mounting.
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$ 200.78
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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).
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$ 117.47
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1-2 weeks delivery time Blue Sea Dual Circuit Plus battery switch allowing independent or combined control of two battery banks, enabling parallel connection in the BOTH position, with silver-plated copper contacts and high current handling up to 350 A continuous for flexible onboard power management.
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$ 108.71
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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.
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$ 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).
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$ 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.
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$ 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.
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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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What are the primary functions of a Blue Sea Systems battery switch in a marine battery management system?
The primary functions of a Blue Sea Systems battery switch in a marine battery management system include isolating and connecting batteries to manage power distribution effectively. These switches, such as the manual battery switch from the Blue Sea Systems e-series, allow boat owners to control the charging and discharging of house and starting batteries, ensuring reliable power for essential systems. With tin-plated copper studs and robust construction, these switches are suitable for gasoline or diesel engines, providing durable and efficient performance even in harsh marine environments.
How does a dual circuit battery switch from Blue Sea Systems improve power distribution in marine applications?
A dual circuit battery switch from Blue Sea Systems improves power distribution in marine applications by allowing users to manage two batteries separately, such as a house battery and a starting battery. This setup ensures that power can be directed where it is needed most, without draining essential systems. Marine Battery Switch can be paired with an Automatic Charging Relay (ACR) for automatic charging and isolation, providing flexibility and reliability for gasoline powered boats and other marine vessels. Various mounting and installation options make it adaptable for different setups, ensuring continuous power distribution without interruption.
What are the key features of the Blue Sea Systems e-series manual battery switch and how is it used on a boat?
The key features of the Blue Sea Systems e-series manual battery switch include its robust construction, high amps continuous rating, and ability to handle single circuit battery management on a boat. This switch is designed for easy operation, allowing users to manually isolate or combine batteries as needed, ensuring reliable power distribution without power loss. The mini battery switch variant offers a compact solution for installations with limited space, while the remote battery switch option enhances accessibility and control in various marine applications.
Often integrated into a Blue Sea Add a Battery system, the e-series switch helps prevent accidental battery drain and simplifies control over starting and house battery banks. The mini variant is ideal for tight installation spaces, while the remote battery switch option adds flexibility by allowing convenient operation from a distance—perfect for complex or concealed setups.