Description
ARCO Zeus 115A 24V HD Alternator | Boat Supply Store
Designed for demanding 24V marine electrical systems, this heavy-duty alternator replaces the need for a generator by providing substantial power directly from your engine. It features dual internal cooling fans, ensuring exceptionally cool operating temperatures and extended service life even under continuous high load, delivering a sustained cruising output of 104 amps at 6,000 RPM. With a 12-pole rotor and a maximum cold output of 132 amps, it rapidly charges large battery banks, making it ideal for powering complex systems on larger vessels or workboats operating in challenging coastal waters.
Key Features
- High Output: Delivers 115 amps max and 104 amps sustained cruising output.
- 24V System Voltage: Engineered for robust 24V marine electrical configurations.
- Heavy Duty: Built for the rigors of demanding marine and diesel applications.
- Dual Internal Cooling Fans: Ensures exceptionally cool operating temperatures for longevity.
- Generator Replacement: Significantly reduces reliance on auxiliary generators.
- Rapid Battery Charging: Quickly replenishes large battery banks.
- External Regulation Ready: Optimized for use with external voltage regulators (EX).
- 12-Pole Rotor: Provides efficient power generation across a wide RPM range.
Specifications
| Product Specifications | |
|---|---|
| Voltage | 24V |
| Duty | Heavy Duty |
| Output | High Output |
| Mount Type | Pad Mount |
| MPN | 4413 |
| Rotor Type | 12-pole |
| Weight | 18.7 lb (8.5 kg) |
| Regulation | External regulation required (EX) |
| Cut-in RPM | 1,288 |
| Max Alternator RPM | 10,000 |
| Rear Battery Post | M8 thread |
| Pulley Type | Standard K8 59 mm |
| Diodes | 50 amp avalanche |
| Max Output (Cold) | 132 amps |
| Sustained Cruising Output (Hot, 6,000 RPM) | 104 amps |
| Sustained Idle Output (Hot, 3,000 RPM) | 89 amps |
| Max Continuous Operating Temperature | 125°C |
Who This Is For
Boat owners and marine professionals with 24V systems, particularly those operating diesel engines, who require high-amperage charging for large battery banks or need to support significant electrical loads. This alternator is ideal for those looking to reduce their reliance on onboard generators.
How It Compares
| Feature | ARCO Zeus 115A 24V HD Alternator | Balmar 614 |
|---|---|---|
| Voltage | 24V | 24V |
| Max Output (Cold) | 132 Amps | 100 Amps |
| Sustained Cruising Output (Hot) | 104 Amps | 80 Amps |
| Cooling System | Dual Internal Fans | Internal Fan |
| Regulation Type | External Only (EX) | External Required |
Common Concerns Answered
Is the external regulator included with this alternator?
No, this ARCO Marine Zeus alternator requires a separate external voltage regulator, which is not included in the purchase price. This is a common requirement for high-output alternators to ensure optimal charging and system protection.
How does the dual fan cooling system improve performance?
The dual internal cooling fans are a critical feature of the Zeus A115/3500W, actively dissipating heat generated during high output operation. This ensures the alternator maintains exceptionally cool operating temperatures, leading to sustained performance, extended service life, and preventing thermal breakdown under heavy loads.
Can this alternator truly replace a generator on my boat?
For many applications, this alternator can significantly reduce or eliminate the need for a generator by producing high amperage output, such as 104 amps sustained cruising output. It's designed to rapidly charge large battery banks and support substantial electrical loads, however, your specific power requirements will determine if it can fully replace a generator.
Frequently Asked Questions
What is the maximum output of the ARCO Marine Zeus A115/3500W alternator?
The ARCO Marine Zeus A115/3500W alternator has a maximum cold output of 132 amps and a sustained cruising output of 104 amps at 6,000 RPM.
Does this alternator require an external regulator?
Yes, this alternator requires an external regulator (EX designation) for proper operation and voltage control.
What is the sustained cruising output of this alternator?
The sustained cruising output of the ARCO Marine Zeus A115/3500W alternator is 104 amps, measured at 6,000 RPM and hot operating temperature.
How does the dual fan cooling system benefit the alternator's performance?
The dual internal cooling fans help maintain exceptionally cool operating temperatures, which is crucial for sustained high output performance, extending the alternator's service life, and preventing overheating during demanding usage.
What is the weight of the ARCO Marine Zeus A115/3500W alternator?
The ARCO Marine Zeus A115/3500W alternator weighs 18.7 lb (8.5 kg).
