Description
ARCO Marine Zeus 4kW 24V LTO Alternator | Boat Supply Store
Engineered for demanding 24V charging systems, this ARCO Marine Zeus alternator addresses the critical need for robust power generation at lower engine speeds. Its native 24V rotor and field current design enables a sustained idle output of 108 Amps at 3,000 RPM, significantly reducing reliance on generators for large battery banks common on offshore sportfishing vessels. The unit boasts a 4kW power output and features SAE J1171 certification for marine environmental compliance.
Key Features
- Rapidly charges large battery banks
- Runs cooler for increased lifespan
- Engineered for high energy production
- Low Turn On (LTO) technology for lower RPM operation
- 4kW power output
- Dual cooling fans
- SAE J1171 Certified
- Made in the U.S.A.
Specifications
| Product Specifications | |
|---|---|
| System Voltage | 24V |
| Power Output | 4kW |
| Mounting Type | SAE J180 4" Saddle Mount |
| Ground Type | Isolated |
| Sustained Cruising Output | 130 Amps @ 6,000 RPM (5.1kW PTO) |
| Sustained Idle Output | 108 Amps @ 3,000 RPM (4.2kW PTO) |
| Certification | SAE J1171 Certified |
| Rotor/Field Design | Native 24V |
Who This Is For
Marine, RV, military, and commercial vehicle owners and operators requiring high-output, reliable 24V charging systems, especially those with diesel engines or applications where charging at lower engine RPMs is critical. It's ideal for users looking to reduce generator reliance and rapidly charge large battery banks.
How It Compares
| Feature | ARCO Marine Zeus 4kW 24V LTO Alternator | WAI Global 10000N |
|---|---|---|
| Voltage | 24V | 24V |
| Max Output (Cold) | 144 Amps (3,960 Watts) | 100A |
| Sustained Cruising Output (Hot) | 130 Amps (3,575 Watts) | Approx. 90-100A |
| Sustained Idle Output (Hot) | 108 Amps (2,970 Watts) | Lower than sustained cruising |
| Cut-In RPM | 1,072 Alternator RPM | Higher than ARCO Zeus |
| Mounting Type | J180 4" Saddle Mount | J180 4-inch |
| Ground | Isolated | Isolated |
| Cooling System | Dual Fans, External Rectifier, Heat Shedding Coatings | Standard cooling |
Common Concerns Answered
Why is the initial cost higher than some basic alternators?
The ARCO Marine Zeus alternator utilizes advanced native 24V components, dual cooling fans, and heat-shedding coatings, which contribute to its superior performance, extended lifespan, and cooler operation at lower RPMs, justifying the investment for critical marine charging applications.
Does this alternator come with a regulator?
No, this alternator requires an external regulator for optimal performance and is sold separately. This allows for tailored system integration and ensures the alternator operates within its peak efficiency parameters.
Is this alternator built to withstand harsh marine environments?
Yes, the ARCO Marine Zeus alternator is SAE J1171 Certified, a standard for marine environmental protection, indicating its resilience against vibration, moisture, and temperature extremes inherent in maritime operations.
Frequently Asked Questions
What is the cut-in RPM for the ARCO Marine Zeus 24V 4kW LTO Alternator?
The ARCO Marine Zeus 24V 4kW LTO Alternator has a cut-in RPM of 1,072 Alternator RPM.
What is the maximum continuous operating temperature for this alternator?
While specific maximum continuous operating temperature is not explicitly stated, the 'runs cooler' feature and dual cooling fans indicate robust thermal management designed for prolonged high-output operation under load.
What type of pulley system does this alternator use?
The pulley system is not explicitly detailed in the provided specifications, but it utilizes a standard J180 4" saddle-style mount, which is common for belt-driven applications in marine and heavy-duty vehicles.
Can this alternator be used with lithium batteries?
Yes, this alternator can be used with lithium batteries, especially when paired with an appropriate external regulator that supports lithium battery charging profiles, allowing for rapid charging of high-capacity lithium banks.
What does 'LTO' stand for in the ARCO Zeus alternator?
'LTO' stands for Low Turn On, indicating the alternator's ability to begin charging at lower engine RPMs compared to standard alternators.
