High-Efficiency 24V Alternator for Low-Speed Charging Applications

The ARCO Zeus 24 Volt 4 kW Low Turn-On (LTO) High-Output Alternator is designed for systems that demand efficient charging even at low engine speeds. Ideal for marine, off-grid, and vehicle-based power systems, it combines a native 24 V rotor design, advanced cooling, and versatile mounting options to deliver reliable, consistent performance in demanding environments.

Key Features

• Low Turn-On (LTO) Performance: Delivers over 1.4 kW (≈51 A) at 1,500 RPM and up to 2.4 kW (≈87 A) at 2,000 RPM, ensuring fast charging even at low engine speeds.
• True 24 V Rotor Design: Built around a native 24 V field and rotor system for improved efficiency and cooler operation compared to 12 V conversions.
• Advanced Thermal Management: Dual internal cooling fans, heat-dissipating coatings, and an external rectifier provide superior temperature control and extended component life.
• Multiple Mount Configurations: Available with 3.15″ J180 saddle, 4″ J180 saddle, single-foot with spacer, and N62 clutch pulley mounts for easy integration across various engines.
• Marine-Grade Construction: SAE J1171 ignition-protected design with corrosion-resistant materials ensures safe and reliable operation in harsh marine environments.
• Compact, Lightweight Design: Reduces overall system weight while maintaining full alternator performance, allowing easier installation in confined spaces.

Optimised for low-RPM charging, this alternator delivers exceptional output and endurance—perfect for vessels, vehicles, and power systems that require steady energy production even at idle.