ARCO Marine Zeus A8000-48V 8kW Single Foot Alternator with Isolated Ground

Zeus A8000-48V 8kW 1-2 Single Foot 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 domestic styles using a single 1 or 2 mounting foot (e.g., Motorola, Prestolite).

The ARCO Marine Zeus A8000-48V alternator is engineered for high energy output and reliable performance in demanding applications. Designed to operate efficiently at lower RPMs, this 48V alternator delivers over 3kW (55 Amps) at 2,500 RPM and nearly 6kW (111 Amps) at 4,000 RPM, offering substantial power generation for marine, RV, military, and commercial uses. Its advanced design ensures continuous power supply, reducing the need for external generators and enhancing overall system efficiency. The Zeus A8000 features a native 48V rotor and field current, which enables it to run cooler and last longer compared to competitors that use 12V rotors, preventing system damage caused by improper regulation and overheating. This design choice significantly extends the alternator's lifespan and maintains high performance during extended operation.

Features:

• Engineered for high energy production and efficiency

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

• Rapidly charges large battery banks with minimal RPMs

• Operates at cooler temperatures due to heat shedding coatings and exterior rectifier placement

• Dual cooling fans enhance thermal regulation

• Constructed with OEM components for durability

• Optimized for performance at idle speeds to reduce reliance on generators

• E-Coat/Cerakote finish keeps the alternator cooler for sustained high-output performance

• Compatible with ARCO Zeus Bluetooth Alternator Regulator for advanced control and lithium battery charging

• SAE J1171 Certified for quality assurance

• Made in the U.S.A.