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.
|
1-2 weeks delivery time The Blue Sea 4013 CableCap is a black PVC insulating cap designed to insulate single 0.50" studs on alternators, starters, windlasses, and other high-amperage termination points, supporting large-gauge cables (1–2 AWG and 1/0–2/0 AWG).
|
$ 9.51
-
+
| ||
|
1-2 weeks delivery time Blue Sea large cable cap insulator made from soft PVC, suitable for 95–120 mm cable sizes, providing reliable protective insulation for heavy-duty electrical connections in demanding applications.
|
$ 7.50
-
+
| ||
|
1-2 weeks delivery time The Blue Sea 4014 CableCap is a red PVC insulating cap designed to insulate single studs (1.25–0.70) on alternators, starters, windlasses, and other high-amperage termination points, supporting 3/0 and 4/0 AWG cables.
|
$ 4.33
-
+
| ||
|
1-2 weeks delivery time The Blue Sea 4015 CableCap is a black PVC insulating cap designed to insulate single studs (1.25–0.70) on alternators, starters, windlasses, and other high-amperage termination points, supporting 3/0 and 4/0 AWG cables.
|
$ 7.50
-
+
| ||
|
1-2 weeks delivery time The Blue Sea 4016 Straight Terminal Cable Caps are PVC insulating caps designed to fit standard automotive battery posts, providing insulation for straight terminal connections. Suitable for 1, 2, and 4 AWG cables and supplied in red and black.
|
$ 9.59
-
+
| ||
|
1-2 weeks delivery time The Blue Sea 4017 Straight Terminal Cable Caps are PVC insulating caps designed to fit standard automotive battery posts, providing insulation for straight terminal connections. Suitable for 1/0 and 2/0 AWG cables and supplied in red and black.
|
$ 11.97
-
+
| ||
|
1-2 weeks delivery time The Blue Sea 4018 Dual Post CableCap (I/O Pair) is a red and black insulating cover set for in-line dual battery posts on top-mount marine batteries, supporting 1/0 AWG cables. Designed to prevent accidental grounding and compliant with ABYC E-9, USCG 33 Subpart I, and ISO 10133, suitable for environments up to 105 °C.
|
$ 14.98
-
+
| ||
|
1-2 weeks delivery time The Blue Sea 4026 AC Isolation Cover provides electrical insulation and mechanical protection for exposed panel backs and protruding components, covering objects up to 5-1/4" x 3-3/4" x 3". Lightweight, drillable construction meets ABYC requirements for panels combining AC and DC systems.
|
$ 48.34
-
+
| ||
|
1-2 weeks delivery time The Blue Sea 4112 Rocker Toggle Adapter enables installation of toggle-style circuit breakers into Blue Sea Systems 360 panels, providing mechanical compatibility with rocker-style panel cutouts.
|
Our managers will contact you and clarify the terms of the order
| ||
|
1-2 weeks delivery time The Blue Sea 4119 360 Panel Adapter allows 360 panel rocker switches to be installed in circuit breaker apertures of Blue Sea Systems 360 panels.
|
Our managers will contact you and clarify the terms of the order
| ||
|
1-2 weeks delivery time The Blue Sea 4125 Lockout Slide is a 2-position, 2-pole mechanical interlock that allows only one double-pole AC circuit breaker to be ON at a time, preventing power mixing between shore power, generator, or inverter sources.
|
$ 29.43
-
+
| ||
|
1-2 weeks delivery time The Blue Sea 4135 is a clear push button reset-only circuit breaker boot designed for thermal push button circuit breakers. It replaces the standard mounting nut and installs using a 3/8-27 UNS thread. The boot is manufactured from UV-resistant material to reduce discoloration and cracking. Supplied as two pieces per retail package. Weight: 0.04 lb (0.02 kg).
|
$ 8.43
-
+
| ||
|
1-2 weeks delivery time The Blue Sea 4136 is a white push button reset-only circuit breaker boot designed for thermal push button circuit breakers. It replaces the standard mounting nut and installs using a 3/8-27 UNS thread. Manufactured from UV-resistant material to resist discoloration and cracking. Supplied as two pieces per retail package. Weight: 0.04 lb (0.02 kg).
|
$ 8.80
-
+
| ||
|
1-2 weeks delivery time The Blue Sea 4137 is a black push button reset-only circuit breaker boot designed for thermal push button circuit breakers. It replaces the standard mounting nut and installs using a 3/8-27 UNS thread. Manufactured from UV-resistant material to resist discoloration and cracking. Supplied as two pieces per retail package. Weight: 0.04 lb (0.02 kg).
|
$ 8.43
-
+
| ||
|
1-2 weeks delivery time The Blue Sea 4138 is a black WeatherDeck® toggle switch boot designed to replace the dress nut on WeatherDeck™ panel switches. It is rated IP67 for temporary immersion up to 30 minutes and is manufactured from UV-resistant material to resist discoloration and cracking. The boot installs using a 15/32”-32 thread. Weight: 0.04 lb (0.02 kg).
|
$ 7.72
-
+
| ||
|
1-2 weeks delivery time The Blue Sea 4150 is an SPST ON-OFF WeatherDeck® toggle switch manufactured by Carling Technologies for use in Blue Sea Systems WeatherDeck® panels. When mounted with a WeatherDeck® toggle switch boot, it is rated IP67 for temporary immersion up to 30 minutes. The switch features nickel-plated brass and phenolic non-corrosive construction, quick connect terminals, and is rated up to 15A at 125V AC or 12V DC, and 10A at 250V AC.
|
$ 13.19
-
+
| ||
|
1-2 weeks delivery time The Blue Sea 4151 is an SPST WeatherDeck® toggle switch with (ON)-OFF momentary action, manufactured by Carling Technologies for use in Blue Sea Systems WeatherDeck® panels. When mounted with a WeatherDeck® toggle switch boot, it is rated IP67 for temporary immersion up to 30 minutes. The switch features nickel-plated brass and phenolic non-corrosive construction, quick connect terminals, and is rated up to 15A at 125V AC or 12V DC, and 10A at 250V AC.
|
$ 13.19
-
+
| ||
|
1-2 weeks delivery time The Blue Sea 4152 is an SPDT WeatherDeck® toggle switch with ON-OFF-ON operation, manufactured by Carling Technologies for use in Blue Sea Systems WeatherDeck® panels. When mounted with a WeatherDeck® toggle switch boot, it is rated IP67 for temporary immersion up to 30 minutes. The switch features nickel-plated brass and phenolic non-corrosive construction, three quick connect terminals, and is rated up to 15A at 125V AC or 12V DC, and 10A at 250V AC.
|
$ 13.02
-
+
| ||
|
1-2 weeks delivery time The Blue Sea 4153 is an SPDT WeatherDeck® toggle switch with (ON)-OFF-ON momentary action, manufactured by Carling Technologies for use in Blue Sea Systems WeatherDeck® panels. When mounted with a WeatherDeck® toggle switch boot, it is rated IP67 for temporary immersion up to 30 minutes. The switch features nickel-plated brass and phenolic non-corrosive construction, three quick connect terminals, and is rated up to 15A at 125V AC or 12V DC, and 10A at 250V AC.
|
$ 13.50
-
+
| ||
|
1-2 weeks delivery time The Blue Sea 4154 is an SPDT WeatherDeck® toggle switch with (ON)-OFF-(ON) momentary action, manufactured by Carling Technologies for use in Blue Sea Systems WeatherDeck® panels. When mounted with a WeatherDeck® toggle switch boot, it is rated IP67 for temporary immersion up to 30 minutes. The switch features nickel-plated brass and phenolic non-corrosive construction, three quick connect terminals, and is rated up to 15A at 125V AC or 12V DC, and 10A at 250V AC.
|
$ 13.57
-
+
| ||
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.