Shield 48V Alternators from High-Energy Voltage Spikes and Disconnect Events

Purpose-built for 48V charging systems, this alternator shield protects high-output alternators from damaging voltage spikes caused by battery disconnects, load dump events, and lithium battery BMS shutdowns. It rapidly clamps excessive voltage and diverts it safely to ground, helping prevent diode damage while improving the reliability and longevity of high-capacity marine and commercial charging systems.

Key Features

• Designed for 48V Charging Systems – Provides dedicated protection for 48V alternators with an operating protection range of 60V to 120V, supporting high-voltage charging applications.
• Protects Against Voltage Spikes – Helps safeguard alternators from damaging over-voltage conditions caused by battery disconnects, load dump events, and unexpected electrical interruptions.
• Suitable for Lithium Battery Systems – Reduces the risk of alternator damage associated with battery management system (BMS) shutdowns in modern lithium battery installations.
• Helps Extend Alternator Service Life – Minimises stress on alternator diodes and internal electrical components, contributing to improved long-term reliability and reduced maintenance.
• Real-Time LED Status Indicator – Built-in LED provides an immediate visual indication of the unit's operating status for convenient system monitoring.
• Fast, Direct Installation – Installs directly at the alternator terminals, allowing straightforward integration into existing 48V charging systems.
• Engineered for High-Output Alternators – Built to withstand the demands of today's high-capacity alternators used in marine, commercial, and industrial electrical systems.
• IP68 Waterproof Construction – Sealed to an IP68 rating to provide reliable protection against water ingress and harsh operating environments.

Installing dedicated over-voltage protection helps improve the durability of 48V charging systems while reducing the risk of expensive alternator failures caused by unexpected disconnect events.