ARCO Marine Zeus A8000-48V 8kW J180 4-Inch Alternator with Isolated Ground

Zeus A8000-48V 8kW J180 4 Alternator with Isolated Ground

The ARCO Zeus A8000-48V alternator turns on at lower RPMs, runs cooler, and provides more power than other 48V alternators that are larger and heavier. This alternator continuously generates over 3kW (55 Amps)at 2,500 RPM and almost 6kW (111 Amps) at 4,000 Alternator RPM. Put in real-world terms, a marine diesel engine charging at 1,200 RPM with a 3.13:1 pulley ratio is generating just over 5kW (97 Amps), and a Mercedes Sprinter at 750 RPM with a 3.21:1 ratio is generating over 3kW (55 Amps)!

Instead of using rotors designed for 48 volts, many competitor alternators simply use their 12V rotors which is less efficient and limits output at all RPMs. In this scenario, your external smart regulator must drastically reduce field, by as much as 78%. If this is not done correctly, you run the risk of destroying the unit and damaging other components in your system. ARCO utilizes a native 48V rotor and field current. This results in our 48V alternator running cooler than competitors 48V alternators, having a direct impact on the alternators lifespan.

Features:

• Engineered for high energy production.
• Suitable for marine, RV, military, and commercial applications.
• Rapidly charges large battery banks.
• Coolest operating temperatures for increased performance:
• Heat shedding coatings
• Rectifier located on housing exterior
• Dual cooling fans
• OEM components
• Optimized for performance at idle speeds.
• Reduces the need for a generator by creating additional power with your engine.
• Unleash peak performance with E-Coat/Cerakote, keeping the high amp alternator cooler for sustained amperage output.
• Use the ARCO Zeus Bluetooth Alternator Regulator for maximum performance or lithium battery charging.
• SAE J1171 Certified.
• Proudly made in the U.S.A.

Technical Specifications:

• Voltage - 48v
• Field Type - P
• Rotor Poles - 16
• Stator Size - 138mm
• Frame Size - Large
• Weight - 15.89lbs/7.2kg
• Regulation - External Only
• Finish - (Black) E-coating
• Cut-In RPM - 1,920 Alternator RPM
• Maximum Alt RPM - 19,000
• Battery Post - M8 Thread Post, Side Mount
• Standard Pulley - 49K6 (6-groove, 49mm)
• Pulley Mount - 17mm diameter shaft, 25mm long, threaded M17 x 1.5
• Pulley Hardware - M17 x 1.5 x 24mm nut, w/ 18mm ID x 29mm OD washer (Included)
• Diodes - 6 positive, 6 negative, 80A Rated, Avalanche
• Max Output (Cold, 9,000 RPM) at 53.5v - 180 Amps - 9,360 Watts 14.8 kW PTO
• Sustained Cruising Output (Hot, 6,000 RPM) at 53.5v - 138 Amps - 7,383 Watts 10.5 kW PTO
• Sustained Idle Output (Hot, 2,500 RPM) at 53.5v - 78 Amps 4,173 Watts 6kW PTO
• Max Continuous Operating Temperature - 100C / 212F

Mounting Application:

• Replaces most Volvo Penta alternators using a 4 J180 saddle-style mount. Also, used on many larger industrial-based engines.

The ARCO Marine Zeus A8000-48V alternator delivers high power output with efficient operation suitable for marine, RV, military, and commercial applications. Designed to turn on at lower RPMs, it produces over 3kW (55 Amps) at 2,500 RPM and nearly 6kW (111 Amps) at 4,000 RPM, making it ideal for charging large battery banks quickly and reliably. Its ability to generate substantial power at engine idle speeds reduces dependence on auxiliary generators, providing a cost-effective and space-saving solution for power generation on vessels and vehicles.
Constructed with a native 48V rotor and field current, the ARCO Zeus alternator runs cooler and more efficiently than competitors that rely on 12V rotors repurposed for 48V operation. This design enhances durability and extends lifespan, especially under continuous high-load conditions. The alternator features heat shedding coatings to manage operating temperatures, dual cooling fans, and an external rectifier housed on the exterior for better heat dissipation. Its robust build and OEM components ensure durability in demanding environments, while the E-Coat/Cerakote finish maintains corrosion resistance for marine and harsh conditions.
Additional features include rapid charging capabilities, compatibility with Bluetooth Alternator Regulators for optimal performance, and certification per SAE J1171 standards. The unit’s large frame size and standard 49mm pulley make installation straightforward on various engine types. Its maximum operating temperature of 212°F allows it to function reliably under hot conditions. The alternator’s design emphasizes high efficiency and longevity, making it an excellent choice for those requiring a reliable high-amp charge source without the need for a separate generator. Whether used on large marine vessels or industrial vehicles, the ARCO Zeus A8000-48V provides sustained power and performance in a compact, efficient package.
Made in the USA, the ARCO Marine Zeus A8000-48V alternator is a dependable power solution engineered for demanding environments and high energy output needs.

Features:

• Engineered for high energy production

• Suitable for marine, RV, military, and commercial applications

• Rapidly charges large battery banks

• Heat shedding coatings for cooler operation

• Rectifier located on housing exterior for efficient heat dissipation

• Dual cooling fans for enhanced cooling performance

• OEM components ensure durability and reliability

• Optimized for performance at idle speeds

• Reduces reliance on auxiliary generators by creating additional power with engine

• High amperage output with E-Coat/Cerakote for sustained performance

• Compatible with ARCO Bluetooth Alternator Regulator for maximum control

• SAE J1171 certified for safety and quality

• Proudly made in the USA