Blue Sea Main Battery Switch ON-OFF-EMERGY-BOTH Red E Series

Blue Sea Main Battery Switch ON-OFF-EMERGENCY-BOTH Red E Series is a versatile double-pole main battery switch that allows you to manage two separate battery banks and combine them when needed for emergency operation. It is an ideal solution for boats with separate start and house batteries where high system reliability is essential. Looking for a main battery switch that offers both secure battery isolation and the ability to combine battery banks with a simple action? The Blue Sea Mini Dual Circuit Plus™ integrates these functions into a compact and robust E Series design. In an emergency, the battery banks can be quickly connected so both can be used for engine starting or to power onboard systems. Smart battery bank management During normal operation, the switch keeps the start and house batteries separated, helping to protect the start battery from discharge. In EMERGENCY/BOTH mode, the banks are combined so power from both batteries can be used when needed. This improves safety, especially if the start battery is depleted or additional power is required for heavy loads. Seamless switching between battery banks The “make before break” function allows switching between battery banks without interrupting power. This prevents shutdowns of marine electronics and protects sensitive navigation and communication equipment. This feature is particularly valuable on boats equipped with chartplotters, autopilots, VHF radios, or other systems that require continuous power supply. Designed for demanding marine environments The E Series construction handles high currents and harsh marine conditions. Its ignition-protected design allows safe installation even in gasoline-powered boats. The housing also supports flexible mounting from either the front or rear of the panel. Features: • Mini Dual Circuit Plus™ main battery switch • ON-OFF-EMERGENCY/BOTH functions • Manages two separate battery banks • Emergency battery combining function • “Make before break” switching • Ignition-protected design • Suitable for gasoline-powered boats • Front or rear panel mounting option • Clearly visible red operating handle Technical Specifications: • Switch type: Double-pole • Positions: ON / OFF / EMERGENCY-BOTH • Color: Red • Battery combining: Yes • Alternator field disconnect: No • Max voltage: 32 V DC • Continuous current: 350 A • Intermittent current (5 min): 525 A • Cranking current (30 sec): 700 A per circuit • Battery connections: 2 • Terminal studs: M10 • Max cable size: 107 mm² • Cable seal diameter: 27.94 mm • Mounting: fits M6 screws • Weight: 0.59 kg The Blue Sea Main Battery Switch ON-OFF-EMERGENCY-BOTH Red E Series is an excellent choice for boat owners who want safe battery management, high current capacity, and reliable emergency power combining in a single solution.