ARCO Zeus High Output Alternator - 4kW - 24V
If Optimal Charging at Low Speed is Important to You, This is the Perfect Alternator for You
High Output / High Amperage Alternator: The Highest Power Output in Its Class
Note: If fast idle charging is important to you, view our ARCO Zeus 24V 7kW High Amperage Alternator.
24V Advantage - Low Turn On (LTO)
The ARCO Zeus A4000-24V LTO alternator turns on at lower RPMs, runs cooler and provides more power than older designs that are larger and heavier. This alternator continuously generates over 1.4kW (51 Amps) at just under 1,500 RPM, and almost 2.4kW (87 Amps) at 2,000 Alternator RPM. Put in real world terms, a marine diesel engine idling at 750 RPM with a 2:1 pulley ratio is generating over 1.5kW (55 Amps), and a Mercedes Sprinter at 750 RPM with a 3.21:1 ratio is generating over 2.5kW (91 Amps)!
Best-in-Class Performance
The ARCO Zeus A4000-24V alternator turns on at lower RPMs, runs cooler and provides more power than older designs that are larger and heavier. The newest generation of 24V performance has arrived.
True 24V Alternators
Competitor’s 24V alternators utilize a 12V rotor and field current which is less efficient and limits output at all RPMs. ARCO utilizes a native 24V rotor and field current. This results in our 24V alternator running cooler than competitor’s 24V alternators, having a direct impact on alternator lifespan.
ARCO Zeus 24V High Amperage Alternators, A4000-24V LTO or A7000-24V: Which One's Right for You?
Choose A4000-24V LTO if:
- You prioritise charging at idle (at campsite or anchor)
- You need to limit power take-off i.e. smaller engine
- You are willing to trade some top-end output for increased output
at low RPM. - Replace your noisy generator!
- 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 cruising speeds.
- Reduces the need for a generator by creating additional power with your engine.
- Unleash peak performance with E-Coat/Cerakote, keeping the high amp alternator cooler for sustained amperage output.
- For maximum performance or lithium battery charging, use the ARCO Zeus Bluetooth Alternator Regulator.
- SAE J1171 Certified.
- Proudly made in the U.S.A.
Technical Specifications
|
Voltage |
24V |
|
Field Type |
P |
|
Rotor Poles |
16 |
|
Rotator Source Voltage |
24V |
|
Stator Size |
138mm |
|
Frame Size |
Large |
|
Weight of heaviest option (N62 with clutch pulley) |
15.89 lbs / 7.2 kg |
|
Regulation |
External Only (EX) |
|
Finish |
(Black) E-coating |
|
Cut-In RPM |
1,072 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) at 27.5V |
144 Amps - 3,960 Watts – 5.7Kw PTO |
|
Sustained Cruising Output |
130 Amps - 3,575 Watts – 5.1Kw PTO |
|
Sustained Idle Output |
108 Amps - 2,970 Watts – 4.2kW PTO |
|
Max Continuous Operating Temperature |
100°C / 212°F |
*All models are EXTERNAL Regulation
| Brand | Arco Marine |
|---|---|
| Housing | Vortec (GM), N62 Clutch Pulley, 1"-2" Single Foot, 3.15" Dual Foot, 3.15" R Dual Foot Rear Exit B+ |
| Ground Type | Case Ground, Isolated Ground |
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