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ARCO Marine  |  SKU: EM-113777  |  Barcode: 735380545703

ARCO Zeus Alternator Shield - 48V [AS48]

Regular price $133.00

SHIPS SAME DAY BEFORE 3PM CST! Shipping Policy


Refund & Return Policy

Returns are accepted within 30 days after shipment. To be eligible for a return, items must be unused, uninstalled, and in their original packaging, and proof of purchase is required. The following items are not eligible for return: Installed or used products, clearance or final-sale items, trolling motors, programmed AIS units, KVH Starlink products that are registered or opened, special-order products, or products displaying the notice “This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.” in their description. Opened or unsealed DVDs, CDs, or cartography (unless defective) are not eligible for return. Return Merchandise Authorization (RMA) numbers are required for all returns. Learn more.

Shipping Policy

Egret Marine ships marine parts and accessories within the contiguous United States only. Orders are typically processed same day if placed before 3pm CST, excluding weekends and holidays. Learn more.

Product Details

Zeus Alternator Shield - 48V

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