Blue Sea Systems

The Blue Sea Systems 285-Series 70A surface-mount circuit breaker is a combined switch and medium-duty protective device designed for marine equipment like windlasses and electric winches. Built to simplify installations and protect circuits aboard boats, this surface-mount breaker replaces a manual switch and a...

The Blue Sea Systems 285-Series 40A surface-mount circuit breaker is a combined switch and medium-duty protective device designed for marine applications such as windlasses and electric winches. This compact, surface-mounted breaker replaces the 185 series and pairs on/off switching with tailored circuit protection so...

Blue Sea Systems 285-Series 150A surface-mount breaker combines a reliable on/off switch with automatic circuit protection for marine and industrial DC circuits. This 285-Series medium-duty circuit breaker is designed to protect high-current DC devices such as windlasses and electric winches while also serving as...

Blue Sea Systems 2719 Insulating Cover protects MaxiBus busbars and mounted breakers with a reinforced nylon base and clear polycarbonate top for reliable electrical insulation. This insulating cover is engineered to fit Blue Sea Systems MaxiBus BusBar assemblies using the 6-screw (part 2128) or...

Blue Sea Systems Add-A-Battery Kit, 120A is an automatic dual-bank battery management kit that combines a Dual Circuit Plus switch with an Automatic Charging Relay to charge both starter and house batteries while isolating them at rest. Designed for inboard engines and larger outboards,...

Blue Sea Systems 7188 (285 Series) is a surface-mount thermal circuit breaker that combines a reliable on/off switch with automatic trip protection for 48V DC circuits up to 120A. This compact, medium-duty breaker is made for marine and industrial use where space, safety and...

Blue Sea Systems 400A ANL stud-mount fuse delivers heavy-duty 32V DC protection with a 6,000 A interrupt rating and clear blown indication for marine and vehicle battery systems. Designed for demanding DC power installations, this ANL fuse (Model 5136) combines robust interrupt capacity with...

The Blue Sea Systems 5131 ANL 250-AMP fuse is a silver-plated, high-current ANL fuse designed to protect heavy DC electrical circuits in marine, automotive, and industrial applications. Reliable overcurrent protection matters where large batteries and powerful alternators are used. The 5131 ANL 250A fuse...

Blue Sea Systems 5175 is a 30-amp battery terminal fuse designed to protect large DC battery banks with a 10,000 AIC rating at 14V DC and a visible blown indicator. Engineered for marine and mobile electrical systems, the Blue Sea Systems 5175 terminal fuse...

Blue Sea Systems 2017 POWERPOST Dual Connector 3/8" is a heavy‑duty dual post that securely joins high‑amp conductors while keeping positive and negative lines clearly insulated. The POWERPOST 2017 by Blue Sea Systems is built to simplify high‑current connections where space, clarity, and reliability...

Blue Sea Systems Minibus 5-Gang Bus Bar with Cover delivers compact, protected 100A terminal distribution for marine, automotive, and industrial DC or AC panels. This five-screw Mini BusBar (part number 2314) gives you a small-footprint electrical central point rated for up to 100A continuous...

Blue Sea Systems 5177 is a 50‑amp battery terminal fuse engineered to deliver high-interrupting DC protection for marine and large battery bank applications when used with the required terminal fuse blocks. Designed by Blue Sea Systems for boats and heavy-duty DC power systems, the...

The Blue Sea Systems MRBF 60A terminal fuse is a high-interrupt-capacity DC main fuse engineered to protect large battery banks with a visible blown indicator. This compact 60-amp MRBF terminal fuse delivers robust short-circuit interruption and clear visual status so you can meet ABYC-style...

The Blue Sea Systems MRBF 80A terminal fuse is a high-interrupt-capacity, ignition-protected marine fuse that provides visible blown indication and is color-coded for rapid amperage identification. Designed for demanding DC power installations aboard boats and other vehicles, this MRBF (Molded Blade Replacement Fuse) delivers...

Blue Sea Systems 5176 is a 40A, ignition-protected battery terminal fuse designed to provide high-interrupt protection for large DC battery banks when used with the appropriate terminal fuse block. This compact terminal fuse replaces a direct battery terminal connection and delivers a visible, serviceable...

The Blue Sea Systems 5190 is a 300-amp silver battery terminal fuse and terminal block designed to protect high-current battery connections while providing a clean, low-resistance mounting point. This compact terminal fuse from Blue Sea Systems combines a heavy-duty 300A fusible link with a...

The Blue Sea Systems MRBF Terminal Fuse 150A is a compact, high-interrupt-capacity battery terminal fuse designed to protect large DC battery banks where a 150-amp main fuse is required. The MRBF Terminal Fuse (150A) from Blue Sea Systems is built for marine and mobile...

Blue Sea Systems MRBF Terminal Fuse 100A is a compact, high-interrupt-capacity battery terminal fuse designed to protect large DC battery banks on boats and mobile power systems. This 100-amp MRBF (Marine Rated Blade Fuse) from Blue Sea Systems is engineered to meet demanding marine...

Blue Sea Systems MRBF Terminal Fuse, 125A, is a high-interrupt-capacity terminal fuse designed to protect large DC battery banks when installed in the correct terminal fuse blocks. This compact marine-grade fuse provides reliable overcurrent protection for main DC circuits on boats and large battery...

The Blue Sea Systems 5189 is a 250-amp battery terminal fuse engineered to protect large DC battery banks with a 10,000 AIC rating and visible blown indication. Designed for marine and mobile DC power systems, this beige 250A terminal fuse provides high interrupt capacity...