ARCO Marine Zeus A8000-48V 8kW Alternator with Isolated Ground for Marine and Commercial Applications

Zeus A8000-48V 8kW 3.15 Alternator with Isolated Ground (Common Rail)

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:

• Must Be Used on Yanmar Common Rail Engines Introduced after 2013 (JH-CR, 3JH40, 4JH45, 4JH57, 4JH80, 4JH110).

The ARCO Marine Zeus A8000-48V alternator is engineered to deliver high power output efficiently while operating at lower RPMs, making it ideal for marine, RV, military, and commercial uses. This 8kW alternator features a native 48V rotor with 16 poles, enabling it to generate over 3kW (55 Amps) at just 2,500 RPM and nearly 6kW (111 Amps) at 4,000 RPM. Its design allows for rapid charging of large battery banks, reducing reliance on external generators and enhancing system independence. The alternator's advanced construction includes heat-shedding coatings, dual cooling fans, and an external rectifier housed on the exterior, all contributing to cooler operation and increased longevity. This design minimizes thermal stress, enabling sustained high performance even during extended use, and its robust components ensure durability in demanding environments. The Zeus A8000-48V is compatible with Yanmar common rail engines introduced after 2013, making it suitable for a range of engine configurations and applications. The unit is built with OEM components, and its black E-coating finish offers corrosion resistance, suitable for marine settings. With a maximum cold RPM of 9,000, it can produce up to 180 amps at 53.5V, delivering over 9,360 watts, and maintains impressive output at cruising speeds. The alternator can operate up to 19,000 RPM and features an M8 side mount battery post, a standard 49mm pulley, and M17 x 1.5 threaded pulley hardware. It is SAE J1171 certified and proudly manufactured in the USA, ensuring quality and performance. The Zeus A8000-48V is compatible with ARCO's Bluetooth regulator for optimal performance and lithium battery charging, making it a versatile and reliable choice for high-demand power systems.

Features:

• Engineered for high energy production and efficiency

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

• Rapidly charges large battery banks to reduce generator dependence

• Designed for cooler operation with heat shedding coatings and dual cooling fans

• External rectifier housed on the alternator exterior for improved cooling

• Built with OEM components for durability and reliability

• Optimized for performance at idle speeds

• Unleashes peak performance with advanced coatings to keep cool

• Compatible with ARCO Bluetooth Alternator Regulator and lithium batteries

• SAE J1171 certified for quality assurance

• Made in the U.S.A. for consistent quality and craftsmanship