ARCO Marine Zeus A225S 1-2 Single Foot Alternator w/Isolated Ground Terminal Block [4015]

Zeus A225S 1'-2' Single Foot Alternator: High - Power and Cool - Running

It's the most powerful alternator in its size and class.

Key Features:

• Designed for high - energy production, perfect for marine, RV, military, and commercial use.
• Quickly charges large battery banks.
• Operates at cooler temperatures, 8 - 20% cooler than other alternators. Thanks to heat - shedding coatings, an exterior - located rectifier, and dual cooling fans.
• Uses OEM components and is optimized for idle - speed performance.
• Generates extra power with your engine, reducing the need for a generator.
• E - Coat/Cerakote coating keeps it cooler for steady amperage output.
• Pair with the ARCO Zeus Bluetooth Alternator Regulator for top performance or lithium battery charging.
• SAE J1171 Certified. Available with internal or external voltage regulators.
• Made in the USA.

Technical Details:

• Voltage: 12v
• Field Type: P
• 16 Rotor Poles, 130mm Stator Size
• Small Frame, 12 lbs/5.4 kg Weight
• Internal/External Regulation
• Output Voltage: 14.1v (Default)
• Black Cerakote or E - coating Finish
• Cut - In RPM: 1,061 Alternator RPM
• Max Alt RPM: 19,000
• M8 Thread Post, Side Mount Battery Post
• 49K6 (6 - groove, 49mm) Standard Pulley
• 17mm diameter shaft, 25mm long, threaded M17 x 1.5 Pulley Mount
• M17 x 1.5 x 24mm nut with 18mm ID x 29mm OD washer (Included)
• 6 positive, 6 negative, 50A Rated, Avalanche Diodes
• 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:

• Replaces most domestic single 1' or 2' mounting - foot alternators (e.g., Motorola, Prestolite). May need to upgrade to a double 'V' belt or Serpentine System.

Quick Guide (pdf)
Brochure (pdf)

Using the ARCO Marine Zeus A225S alternator is straightforward. First, make sure to choose the right voltage regulator, either internal or external according to your needs. If you're using a lithium battery, it's recommended to pair it with the ARCO Zeus Bluetooth Alternator Regulator for maximum performance. When mounting, it can replace most domestic - style alternators with a single 1' or 2' mounting foot. But you may need to upgrade the belt system to a double 'V' belt or a Serpentine System. During operation, keep an eye on the temperature. The alternator is designed to run cooler, but it shouldn't exceed 110°C / 230°F. For maintenance, regularly check the battery post and the pulley hardware to ensure they're secure. The diodes also play an important role in power output, so if you notice any issues with the power, have them inspected. Remember, this alternator is made in the USA with high - quality OEM components, so it should serve you well with proper use and care.