ARCO Zeus A225S Vortec Alternator with Regulator – High-Energy Marine, RV, and Commercial Power Solution

Zeus A225S Vortec Alternator with Regulator Zeus High-Energy Alternator Regulator

Zeus A225S Vortec Alternator with Regulator

The highest power output alternator in its size/class.

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. Runs 8 - 20% cooler than incumbent alternators due to:


• 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. Our advanced coating absorbs less heat, keeping the A225S cooler. This translates to more amperage for sustained periods.


• For maximum performance or lithium battery charging, use an ARCO Zeus Bluetooth alternator regulator.


• SAE J1171 Certified.


• Proudly made in the U.S.A.

Technical Specifications:

• Voltage - 12V


• Field Type - P


• Rotor Poles - 16


• Stator Size - 130mm


• Frame Size - Small


• Weight - 12lbs/6.7kg


• Regulation - Internal/External


• Output Voltage - 14.1V (default)


• Finish - (Black) Cerakote or E-coating


• Cut-In RPM - 1,061 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, 50A Rated, Avalanche


• Max Output (Cold, 9,000 RPM) - 254 Amps


• Sustained Cruising Output (Hot, 6,000 RPM) - 187 Amps


• Sustained Idle Output (Hot, 3,000 RPM) - 157 Amps

Mounting Application:

• Replaces Mando type alternators using Vortec/ GM pad mounting feet (Found on many Mercruiser and Volvo Penta 3.0GLM, 3.0GLP, 4.3GXi, 5.7GiL, 5.7GXiL Marine Engines.) (GM Blocks)

Zeus High-Energy Alternator Regulator

ARCOs Zeus is the only high-energy external alternator regulator to feature Bluetooth and a native app (on IOS and Android) allowing for easy installation and configuration. With its intuitive interface, you can access information on your system that you never had before. This information will enable you to regulate your system and optimize your battery charge and alternator output, resulting in a safer experience while protecting your energy system investment.

Zeus is the only alternator regulator that can read 2 shunts at a time (the battery shunt and alternator shunt). This feature enables Zeus to react to inputs from the battery current/temperature and alternator current/temperature.

Through the ARCO Zeus application, you are in good hands. Your data is automatically logged and can be shared with your technician to troubleshoot your system remotely. You can even import your remote technicians configurations.

Zeus optimizes battery charges for 12-48 volt systems. Whether you are using Lithium (LiFePo4) batteries or lead-acid Deep Cycle batteries, Zeus has you covered with its pre-set battery libraries and configurable menus to optimize your charging profiles. Zeus manages a complex set of inputs by giving you easy-to-understand options.

Zeus also takes into consideration the power of your engine and allows you to configure the alternators power take-off from the engine by managing the field, or duty. An advanced feature of Zeus is that it can turn your engine into a dedicated generator with the press of a button, whereby it focuses the alternators performance on the creation of energy to replenish your battery bank quickly.

Consistent with Zeus ease of use, Zeus is the only alternator regulator on the market that comes with alternator/battery harnesses and 2 thermistor harnesses, without an additional charge, saving users money and time from sourcing harnesses.

Features:

• Secure Bluetooth connection


• Harnesses, Thermistors, and NMEA 2000 kit included


• Monitors the state of charge


• Can turn your engine into a dedicated generator with generator mode


• Pre-set battery libraries


• Data logging and sharing


• CAN bus and NMEA 2000-integrated networks


• Compatible with all voltage systems (12- 48V)


• IP66 IP67 rated


• 2-Year warranty

Technical Specifications:

• Enclosure dimensions without antenna - 8.2 x 5.9 x 2.4


• Enclosure dimensions with antenna - 8.2 x 7.5 x 2.4


• Weight - 1.7 lbs

In the Box:

• Zeus high-energy alternator regulator


• Battery wiring harness


• Alternator wiring harness


• 2 thermistors

The ARCO Zeus A225S Vortec Alternator with Regulator is engineered to deliver the highest power output within its size class, making it an ideal choice for marine, RV, military, and commercial applications. Its robust design ensures rapid charging of large battery banks while maintaining cool operating temperatures, thanks to heat-shedding coatings, exterior-mounted rectifiers, and dual cooling fans. This combination of features allows the alternator to run 8 to 20% cooler than traditional models, promoting increased performance and longevity. The A225S's small frame and lightweight design make installation straightforward, and its compatibility with GM blocks and various marine engines ensures versatility across different systems. With a default output voltage of 14.1V and a cut-in RPM of just over 1,000, this alternator is optimized for efficient operation at idle and cruising speeds, significantly reducing the need for additional power sources. The use of OEM components and certification to SAE J1171 standards guarantees reliable performance in demanding environments. The unit's high maximum output of 254 amps at cold startup and sustained hot operation of 187 amps provides ample power for demanding electrical systems, including lithium battery charging. The included M8 threaded post and standard pulley facilitate easy mounting and belt drive integration. The advanced E-Coat or Cerakote finish enhances heat dissipation, enabling continuous high-amperage output. Whether upgrading an existing system or designing a new setup, the ARCO Zeus A225S offers an unmatched combination of power, durability, and efficiency. The product also supports multiple regulation options, including internal and external regulation, to tailor performance to specific system demands. Additionally, it is compatible with Vortec/GM pad mounting feet, making it suitable for a wide range of marine engines, including Mercruiser and Volvo Penta models. The focus on cooling and heat management extends the alternator’s lifespan, providing consistent high performance in harsh conditions. With its compact size and powerful output, the ARCO Zeus A225S stands out as a reliable, high-capacity alternator for demanding applications. This model is complemented by the Zeus High-Energy Alternator Regulator, which features Bluetooth connectivity, remote monitoring, and easy configuration via a mobile app, allowing precise control over charging profiles and system diagnostics. The regulator supports all voltage systems from 12 to 48 volts and includes harnesses, thermistors, and NMEA 2000 kit, simplifying installation and integration with existing systems. Its ability to log data, share information remotely, and turn your engine into a dedicated generator makes it a versatile and valuable component for power management. The Zeus regulator’s IP66/IP67 rated enclosure ensures durability in marine environments, and a two-year warranty provides added peace of mind. Whether you are seeking maximum power output, efficient battery management, or remote system control, the ARCO Zeus A225S Vortec Alternator with Regulator is designed to meet the demands of modern electrical systems with reliability and precision.

Features:

• Engineered for high energy production with maximum output in its class

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

• Rapidly charges large battery banks for efficient power management

• Operates 8-20% cooler due to heat-shedding coatings, exterior rectifier, and dual cooling fans

• Lightweight and compact frame designed for easy installation

• Compatible with GM blocks and Vortec/GM pad mounting systems

• Supports multiple regulation options with internal and external regulation modes

• Advanced Cerakote/E-Coat finish enhances heat dissipation for sustained high performance

• High maximum current capacity with 254 amps at cold startup

• Continuous hot operation at 187 amps and idle at 157 amps ensures reliable power supply

• Includes OEM-grade mounting hardware and pulley for straightforward setup

• Certified to SAE J1171 standards for marine and industrial reliability

• Designed for optimal performance at engine idle speeds to reduce power drain

• Part of a versatile system compatible with various battery chemistries, including lithium and lead-acid

• Supports remote monitoring, data logging, and system configuration via ARCO Zeus Bluetooth regulator