Blue Sea Systems

Blue Sea Systems ML-RBS Remote Battery Switch is a 12V, high-current solenoid with a manual backup and illuminated rocker control designed to safely isolate and reconnect battery banks up to 500A continuous (700A intermittent). The ML-RBS Remote Battery Switch (MFG# 7700) is a compact,...

The Blue Sea Systems SI-ACR Automatic Charging Relay (120A) automatically links and isolates batteries to maximize charging efficiency while protecting sensitive circuits during engine cranking. The SI-ACR from Blue Sea Systems is a compact, hermetically sealed relay designed to manage charging between battery banks...

Blue Sea Systems PowerBar 600A is a heavy‑duty electrical bus bar with four 3/8-inch studs, designed to centralize high‑current marine or vehicle power connections with maximum conductivity and corrosion‑resistant construction. Compact and rugged, this PowerBar organizes large‑gauge battery and alternator leads into a single,...

Blue Sea Systems 7611 Auto Charge Relay is an automatic 120A ACR that joins and isolates 12/24V battery banks to optimize charging without manual switching. The 7611 Auto Charge Relay (ACR) from Blue Sea Systems is a compact, high-capacity device that automatically connects two...

The Blue Sea Systems 9004E e-Series is a compact 48V, 350A battery on/off switch with an integrated alternator field disconnect that protects alternator circuits and delivers secure, low-resistance connections in tight installations. The 9004E combines a straightforward single-circuit on/off switch with an Alternator Field...

The Blue Sea Systems HD-Series On/Off Battery Switch (500A) isolates a single battery to a single load group with heavy-duty, ignition-protected, marine-rated reliability. This compact high-current switch gives boaters and mobile-vehicle technicians a simple, reliable way to connect or disconnect a battery from its...

The Blue Sea Systems 7601 Mini Automatic Charging Relay (M-ACR) automatically combines and isolates 12/24V battery banks up to 65 amps while protecting electronics during engine starting. The M-ACR 7601 is a compact automatic charging relay engineered to manage alternator output on small to...

The Blue Sea Systems 2126 is a compact, high-conductivity 250-amp MaxiBus busbar with six 5/16"-18 studs for neat, reliable DC or AC power distribution. Built for marine, automotive, and industrial electrical panels where space, safety and conductivity matter, this busbar routes heavy current cleanly...

The Blue Sea Systems e-Series 4-position battery switch (model 9002e) is a compact, ignition-protected selector that safely switches or combines battery banks and includes an Alternator Field Disconnect for 32V DC systems up to 325A. The 9002e combines heavy-duty electrical capability with a small...

Blue Sea Systems 3‑Position Mini Battery Switch (6008 m‑Series) is a compact, ignition‑protected marine switch that lets you select Off, Battery, or Combine to manage a single battery and load group in tight installations. This small, rugged switch was built for boats and other...

Blue Sea Systems MaxiBus 250A Bus Bar (part 2127) is a compact, high-conductivity power distribution block rated for continuous 250A service and equipped with four studs for easy wiring. Designed for marine, RV, and industrial electrical panels, this MaxiBus bus bar organizes multiple cable...

The Blue Sea Systems e-Series Dual Circuit Plus battery switch provides independent on/off control of two battery banks with a combine function for emergency or boosted power. Compact and engineered for marine use, this e-Series Dual Circuit Plus switch lets you manage a separate...

The Blue Sea Systems e-Series 3-position battery switch (model 11001) is a compact, ignition-protected marine battery switch with alternator field disconnect that safely controls two battery banks and isolates an alternator while underway. Designed for boats and mobile power systems, this switch combines high-current...

Blue Sea Systems’ 3‑Position Mini Battery Switch (m‑Series 6008200) is a compact, ignition‑protected selector that controls a single battery to one load group with three mounting choices for tight marine installations. This small-footprint battery switch gives boat owners a reliable way to route power...

Blue Sea Systems e-Series 4-position selector battery switch lets you choose, combine, or isolate two battery banks quickly for flexible onboard power management. This robust, compact selector switch gives boaters and mobile power users manual control over two separate battery banks. Built for confined...

Blue Sea Systems m-Series Dual Circuit Plus Battery Switch in red is a compact, ignition‑protected dual‑bank battery selector that lets you switch and combine two battery banks safely in tight marine spaces. This small-footprint switch is built for boats and other small craft where...

The Blue Sea Systems 4-Position Mini Selector (6007200 m‑Series) is a compact, ignition-protected battery switch that selects or combines a single battery to power a single load group with flexible mounting for tight spaces. This compact rotary battery switch was built to simplify basic...

Compact, ignition-protected selector switch that gives simple, reliable control of one battery to one load group with a four-position rotary selector and multiple mounting options. The Blue Sea Systems m-Series Mini Selector Battery Switch, Red, is a small-footprint marine-grade switch engineered for basic battery...

Blue Sea Systems e-Series 350A On/Off Battery Switch is a compact, ignition-protected manually operated switch that isolates a single battery bank for safe maintenance, storage, and reliable power control on boats. Built for marine electrical systems that need straightforward on/off control, this 350 amp...

Blue Sea Systems m-Series On/Off Battery Switch is a compact, ignition-protected manual switch that isolates a single battery to a single load group for safe, space-saving battery control on boats. This m-Series switch is built to give simple, reliable battery isolation where space is...

Blue Sea Systems m-Series On/Off Battery Switch (red) is a compact, ignition-protected master switch that safely isolates a single battery and load group in tight marine installations. When space is limited but reliable battery isolation is required, this m-Series On/Off switch delivers a small-footprint...

The Blue Sea Systems 2315 is a compact 100-amp mini busbar with four #10-32 studs and a clear polycarbonate cover for organized, low-resistance DC/AC power distribution. Compact yet robust, this 100A busbar is built for small electrical panels, marine, RV and mobile power installations...

Blue Sea Systems 1007100 Side Entry CableClam is a low-profile, waterproof side-entry cable gland with a polished 316 stainless steel dress cap that allows you to route factory-connected cables without disconnecting them. Designed for marine and mobile electrical installations, this CableClam lets you add...

Blue Sea Systems 1003 CableClam is a waterproof 1.39" antenna cable feed‑through designed to let coaxial cables pass into a boat or enclosure without removing connectors. Installations that require routing antenna or coaxial cables through a bulkhead can be time consuming and risk damaging...