Protect High-Output Alternators from Damaging Voltage Spikes and Load Dump Events

Built to safeguard modern charging systems, the alternator shield protects high-output alternators from damaging voltage spikes caused by sudden battery disconnects, load dump events, or lithium battery BMS shutdowns. By clamping excess voltage and safely diverting it to ground, it helps prevent alternator damage, extends component life, and improves the reliability of high-performance electrical systems. Available in three variants for 12V, 24V, and 48V charging systems, it provides protection across a wide range of marine and commercial applications.

Key Features

• Available in Three Voltage Variants – Offered in 12V, 24V, and 48V models to suit different charging system voltages while providing the appropriate level of alternator protection.
• Protection Against Voltage Spikes – Helps prevent damage caused by battery disconnects, load dump events, and unexpected voltage surges that can destroy alternator diodes.
• Suitable for Lithium Battery Systems – Supports modern electrical systems where battery management system (BMS) shutdowns can create harmful voltage conditions for alternators.
• Extends Alternator Service Life – Reduces electrical stress on internal alternator components, helping improve long-term reliability and minimise costly repairs.
• Real-Time LED Status Indicator – Integrated LED provides a quick visual indication of the unit's operating status for easy monitoring.
• Simple Installation – Mounts directly to the alternator terminals, allowing fast installation without major modifications to the charging system.
• Built for High-Output Alternators – Engineered to operate with today's high-amperage charging systems, making it suitable for demanding marine and commercial electrical applications.
• Durable Waterproof Construction – Rated to IP68, providing protection against water and harsh operating environments.

Adding an alternator shield helps reduce the risk of alternator failure during battery disconnect events while improving the overall durability of modern charging systems.