Product Details
Zeus Alternator Shield - 12V
Protect Your Alternator from Voltage Spikes & Disconnect Events
The ARCO Zeus Alternator Shield is engineered to protect high-output alternators from damaging voltage spikes caused by sudden battery disconnect events. These events, commonly triggered by lithium battery BMS shutdowns or accidental switch interruptions, can instantly destroy alternator diodes.
The Shield clamps excess voltage and safely diverts it to ground, helping extend alternator life and prevent costly failures.
Key Benefits:
- Protects Against Voltage Spikes - Prevents damage caused by battery disconnects and load dump events
- Designed for Modern Electrical Systems - Ideal for lithium battery systems with BMS shutoff risk
- Extends Alternator Life - Reduces stress on diodes and internal components
- Real-Time Status Indication - LED indicator provides instant health status
- Easy Installation - Installs directly at alternator terminals in minutes
- Built for High Output Systems - Engineered to perform with today’s high-amperage alternators
ARCO Advantage:
- Tested to ISO 16750-2 Load Dump Standard
- Up to 75% more survivable disconnect events vs. the leading competitor
- Designed to handle real-world high-output charging conditions
- Integrated into the ARCO Zeus ecosystem

![Trident Marine 1-1/2" Type A2 Fuel Fill Hose - Sold by the Foot [327-1126-FT]](http://roughseasmarine.com/cdn/shop/files/99617XL_{width}x.jpg?v=1685074712)
![Attwood Universal Sprayless ConnectorHose Male (5/16"-3/8") [8838HM6]](http://roughseasmarine.com/cdn/shop/files/98201XL_{width}x.jpg?v=1782307578)
![ARCO Marine Zeus 24V 7kW 3.15 Alternator w/Isolated Ground [4501]](http://roughseasmarine.com/cdn/shop/files/107554XL_{width}x.jpg?v=1741311353)
![ARCO Marine Zeus A225S 3.15 Alternator w/Isolated Ground (Common Rail)Terminal Block [4013]](http://roughseasmarine.com/cdn/shop/files/107521XL_{width}x.jpg?v=1741311273)
![ARCO Marine Johnson/Evinrude Outboard Relay - 12V 30A [R473] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/97229XL_{width}x.jpg?v=1677109929)
![Balmar Alternator 170 AMP Kit 12V 3.15" Dual Foot Saddle J10 Pulley RegulatorTemp Sensor [XT-CR-170-J10-KIT] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/97475XL_{width}x.jpg?v=1677110101)
![Balmar Offshore Repair Kit 60 Series 12V w/Bearings, Brushes, Regulator/Rectifier [7060] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/79878XL_{width}x.jpg?v=1677109986)
