Blue Sea Main Battery Switch ON-OFF-DUAL Red M Series

Blue Sea Main Battery Switch ON-OFF-DUAL Red M Series is a high-quality double-pole main battery switch designed to safely disconnect two separate battery banks from the electrical system at the same time. It is ideal for boats with, for example, separate 12 V and 24 V systems, or installations where both the positive and negative circuits need to be isolated using a single switch. Looking for a reliable high-current battery switch for marine use? The Blue Sea M Series is engineered for demanding environments where safety, durability, and long service life are essential. Its compact design and high current-handling capability make it a strong choice for powerboats, sailboats, and workboats. Safe control of two independent power circuits The double-pole design allows simultaneous disconnection or connection of two completely separate battery banks. This simplifies maintenance, winter storage, and safe system shutdown when the vessel is not in use. It is also suitable for installations where both positive and negative circuits must be isolated at the same time. Built for high current loads A continuous rating of up to 300 A and high cranking capacity makes the switch suitable for powerful engines and larger onboard electrical systems. Its robust construction ensures reliable operation even under heavy load conditions. Large M10 terminal studs allow secure connection of heavy-gauge cables with minimal voltage drop. Compact and durable M Series design The Blue Sea Systems M Series is known for its compact footprint, premium build quality, and long service life. The red control knob is easy to identify and operate, even in emergency situations. Features: • Double-pole main battery switch with ON/OFF function • Enables simultaneous disconnection of two separate battery banks • Suitable for isolating both positive and negative circuits • Compact M Series design • Clearly visible red control knob • Designed for demanding marine environments • No battery combining function • No alternator field disconnect function Technical Specifications: • Switch type: Double-pole • Positions: ON / OFF • Color: Red • Max voltage: 32 V DC • Continuous current: 300 A • Intermittent current (5 min): 450 A • Cranking current (30 sec): 675 A per circuit • Battery connections: 2 • Terminal studs: M10 • Max cable size: 107 mm² • Cable seal diameter: 28.45 mm • Tightening torque: 13.56 Nm • Mounting: #10 screws • Weight: 0.36 kg The Blue Sea Main Battery Switch ON-OFF-DUAL Red M Series is an excellent solution for boats requiring reliable power management across two independent electrical systems. Its high current capacity, compact construction, and trusted Blue Sea quality make it a dependable choice for long-term marine use.