Blue Sea Main Battery Switch ON-OFF Grey HD Series

Blue Sea Main Battery Switch ON-OFF Grey HD Series is a heavy-duty main battery switch designed for high-load electrical systems. It allows you to safely connect or disconnect a single battery or battery bank from a load circuit. Its extremely high current capacity makes it an excellent choice for larger boats, workboats, and other demanding marine electrical systems. Looking for a main battery switch that can handle high cranking currents and continuous loads year after year? The Blue Sea HD Series heavy-duty ON/OFF switch is built specifically for these applications. Its rugged construction and high-capacity terminals ensure reliable performance even under extreme operating conditions. Reliable power isolation for a single battery bank The single-pole ON/OFF design allows safe control of one battery or battery bank. Power can be quickly disconnected for maintenance, winter storage, or emergency situations, improving both safety and battery longevity. The clearly defined operating handle makes the switch easy to use even in demanding onboard conditions. Exceptionally high current capacity The HD Series is engineered for very high current loads. With a continuous rating of up to 600 A and a cranking capacity of 1750 A for 30 seconds, it is well suited for powerful diesel engines, large battery banks, and high-demand electrical systems. The switch also supports dual 95 mm² cable connections on a single terminal, simplifying installation in high-current setups. Safe and flexible installation The ignition-protected design allows safe installation in gasoline-powered boats. The housing supports both front and rear panel mounting, providing flexibility in different installation layouts. Blue Sea Systems’ proven quality and the HD Series’ rugged construction ensure long service life even in harsh marine environments. Features: • Heavy-duty ON/OFF main battery switch • For one battery or battery bank • Ignition-protected construction • Suitable for gasoline-powered boats • Front or rear panel mounting • Supports dual cable connections • Designed for very high current applications • Rugged HD Series construction Technical Specifications: • Switch type: Single-pole ON/OFF • Positions: ON / OFF • Color: Grey • Max voltage: 32 V DC • Continuous current: 600 A • Intermittent current (5 min): 900 A • Cranking current (30 sec): 1750 A • Battery connections: 1 • Terminal bolt: M12 • Tightening torque: 24.86 Nm • Cable connections: 2 • Max cable size: 107 mm² • Cable seal diameter: 27.94 mm • Mounting: M6 screw compatible • Weight: 0.59 kg The Blue Sea Main Battery Switch ON-OFF Grey HD Series is an excellent choice for boat owners who require maximum reliability and very high current handling. Its rugged construction, strong performance, and secure installation design make it a dependable component in demanding marine electrical systems for years to come.