ARCO Zeus A275L 1-2 Single Foot Alternator with Isolated Ground and High-Energy Regulator

Zeus A275L 1-2 Single Foot Alternator with Isolated Ground, Terminal Block Zeus High-Energy Alternator Regulator

Zeus A275L 1-2 Single Foot Alternator with Isolated Ground Terminal Block

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.


• 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 A275L cooler for sustained amperage output.


• Use the ARCO Zeus Bluetooth Alternator Regulator for maximum performance or lithium battery charging.


• SAE J1171 Certified.


• Models are available with internal/external voltage regulators.


• Proudly made in the U.S.A.

Technical Specifications:

• Voltage - 12V


• Field Type - P


• Rotor Poles - 16


• Stator Size - 138mm


• Frame Size - Large


• Weight - 14.9 lbs/6.7 kg


• Regulation - Internal/External (Internally regulated with adaptor for optional external regulation.)


• 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) - 311 Amps


• Sustained Cruising Output (Hot, 6,000 RPM) - 227 Amps


• Sustained Idle Output (Hot, 3,000 RPM) - 198 Amps


• Max Continuous Operating Temperature - 110C / 230F

Mounting Application:

• Replaces most domestic styles using a single 1 or 2 mounting foot (e.g., Motorola, Prestolite). Requires Standard single V belt upgrading to a double V belt or Serpentine System

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 A275L 1-2 single foot alternator is engineered for high energy production, making it ideal for marine, RV, military, and commercial applications. Its design delivers the highest power output in its size/class, with rapid charging capabilities for large battery banks. The alternator features heat-shedding coatings, dual cooling fans, and an exterior-mounted rectifier to ensure cool operation and sustained performance. Its robust construction includes OEM components and an optimized design for high efficiency at idle speeds, reducing reliance on a generator by generating additional power directly from your engine.

This model is equipped with advanced cooling technology, including Cerakote or E-coating finishes, to maintain cooler operating temperatures, which enhances durability and performance. It includes a standard 6-groove pulley and is compatible with most domestic mounting configurations, requiring a standard single V belt upgrade for serpentine systems. The alternator’s high current output—up to 311 amps at cold RPM—enables rapid recharging of large battery banks and supports high-demand electrical systems. Its regulation options include internal and external modes, with a default output voltage of 14.1 volts, suitable for a wide range of battery types, including lithium and lead-acid deep cycle batteries.

The ARCO Zeus A275L features a rugged design with a 16-pole rotor and a large stator, weighing approximately 15 pounds. It is SAE J1171 certified and designed for maximum RPMs of up to 19,000, with a cut-in RPM of just over 1,000. The alternator is constructed with M8 side mount battery posts, and its pulley system includes hardware for easy installation. Its high-performance diodes, rated at 50A avalanche type, ensure reliable current flow under demanding conditions. This alternator replaces most domestic styles, including Motorola and Prestolite, and is suitable for applications requiring a single or dual foot mounting setup.

Complementing this powerful hardware is the ARCO Zeus Bluetooth Alternator Regulator, which offers advanced system management features. It allows remote monitoring, configuration, and data logging via a dedicated app compatible with iOS and Android devices. The regulator can read two shunts simultaneously, enabling detailed insights into battery and alternator currents and temperatures. It features pre-set battery libraries for optimal charging profiles, can turn your engine into a dedicated generator, and includes harnesses and thermistors at no additional cost. With protection ratings of IP66/IP67, a compact design, and a 2-year warranty, the ARCO Zeus A275L is a comprehensive solution for high-performance electrical systems seeking reliability, ease of use, and advanced control features.

Features:

• High-energy output with rapid charging for large battery banks

• Engineered for marine, RV, military, and commercial use

• Heat-shedding coatings and dual cooling fans for cooler operation

• Exterior-mounted rectifier for enhanced durability

• Optimized for performance at idle speeds

• Compatible with Bluetooth-enabled Zeus regulator for remote control and monitoring

• Supports 12V systems with options for internal or external regulation

• Includes harnesses, thermistors, and NMEA 2000 kit for easy installation

• Bluetooth connection with data logging and remote troubleshooting

• Can convert engine into dedicated generator with generator mode

• Built with OEM components, SAE J1171 certified, and made in the USA