ARCO Marine Zeus A225S 3.15 Alternator w/Isolated Ground Terminal Block [4011]

Zeus A225S 3.15 Alternator with Isolated Ground and Terminal Block

It's the most powerful alternator in its size and class. It's engineered to produce high energy, making it suitable for marine, RV, military, and commercial uses. It can quickly charge large battery banks.

Features:

• High - energy production design
• Versatile for multiple applications
• Fast battery charging
• Cool operation, running 8 - 20% cooler than other alternators due to heat - shedding coatings, exterior - located rectifier, and dual cooling fans
• Uses OEM components
• Great performance at idle speeds
• Creates extra power with your engine, reducing the need for a generator
• E - Coat/Cerakote coating for sustained amperage output
• Pair with ARCO Zeus Bluetooth Alternator Regulator for best performance or lithium battery charging
• SAE J1171 Certified
• Available with internal or external voltage regulator
• Made in the U.S.A.

Technical Specifications:

• Voltage: 12v
• Field Type: P
• Rotor Poles: 16
• Stator Size: 130mm
• Frame Size: Small
• Weight: 12 lbs/5.4 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): 254 Amps
• Sustained Cruising Output (Hot, 6,000 RPM): 187 Amps
• Sustained Idle Output (Hot, 3,000 RPM): 157 Amps
• Max Continuous Operating Temperature: 110°C / 230°F

Mounting Application:

• Replaces most small case styles with a 3.15' saddle style mount (e.g., Hitachi, Lucas, Mitsubishi). Fits most Yanmars. Requires upgrading from a standard single 'V' belt to a Serpentine System

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Quick Guide (pdf)
Brochure (pdf)

Using the ARCO Marine Zeus A225S 3.15 Alternator is quite straightforward. First, make sure to mount it properly using the 3.15' saddle style mount, which can replace most small - case alternators. You may need to upgrade your standard single 'V' belt to a Serpentine System. When it comes to charging, this alternator can rapidly charge large battery banks. For maximum performance, you can use the ARCO Zeus Bluetooth Alternator Regulator, especially if you're charging lithium batteries. As for maintenance, keep an eye on the operating temperature. Thanks to its heat - shedding coatings, exterior - located rectifier, and dual cooling fans, it runs cooler than many other alternators. But don't let it operate continuously at temperatures above 110°C (230°F). Also, check the pulley and its hardware regularly to ensure they're in good condition. If you have any questions, refer to the quick guide or brochure in PDF format.