ARCO Marine Zeus 24V 4kW Low Turn On (LTO) Vortec Alternator with Isolated Ground

Zeus 24V 4kW Low Turn On (LTO) Vortec Alternator with Isolated Ground

The ARCO Zeus 24v 4kW 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)!

The ARCO Zeus 24v 4kW 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.

Competitors 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 competitors 24V alternators, having a direct impact on the alternator lifespan.

Features:

• 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.


• Use the ARCO Zeus Bluetooth Alternator Regulator for maximum performance or lithium battery charging.


• SAE J1171 Certified.


• Proudly made in the U.S.A.

Technical Specifications:

• Voltage - 24v


• Field Type - P


• Rotor Poles - 16


• Stator Size - 138mm


• Frame Size - Large


• Weight - 15.89lbs/7.2kg


• Regulation - External Only


• 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 (Hot, 6,000 RPM) at 27.5v - 130 Amps - 3,575 Watts 5.1Kw PTO


• Sustained Idle Output (Hot, 3,000 RPM) at 27.5v - 108 Amps - 2,970 Watts 4.2kW PTO


• Max Continuous Operating Temperature - 100C / 212F

Mounting Application:

• Replaces Mando-type alternators using Vortec/GM pad mounting feet. (Found on many Mercruiser and Volvo Penta 3.0GLM, 3.0GLP, 4.3GXi, 5.7GiL, 5.7GXiL Marine Engines).

The ARCO Marine Zeus 24V 4kW Low Turn On (LTO) Vortec Alternator is engineered to deliver high performance at lower RPMs, providing reliable power for marine, RV, military, and commercial applications. Its innovative design enables it to turn on at engine speeds as low as 1,072 RPM, making it ideal for systems that require efficient power generation from idling engines. The alternator consistently produces over 1.4kW (51 Amps) at just under 1,500 RPM and nearly 2.4kW (87 Amps) at 2,000 RPM, ensuring rapid battery charging and sustained power output during operation. In real-world scenarios, engines like marine diesels idling at 750 RPM with a 2:1 pulley ratio can generate over 1.5kW, while vehicles such as Mercedes Sprinter vans at similar RPMs with a 3.21:1 ratio can produce over 2.5kW, demonstrating its impressive power capacity. The Zeus alternator's ability to operate efficiently at lower RPMs translates into cooler running temperatures, extending component lifespan and reducing heat-related wear. Its robust construction incorporates heat shedding coatings, dual cooling fans, and an external rectifier, all contributing to optimal thermal management for prolonged performance. The alternator features OEM components and is finished with a durable black E-coating, making it suitable for demanding environments. Designed for easy mounting on Mando-type Vortec/GM pad mounting feet, it is compatible with many marine engine configurations, including Mercruiser and Volvo Penta models. The alternator's internal components include a 16-pole rotor, six positive and six negative avalanche-rated diodes, and a large 138mm stator, ensuring high output and durability. The product is SAE J1171 certified and proudly manufactured in the U.S.A., reflecting quality and reliability. Its versatile pulley system includes a standard 49mm, 6-groove pulley, with hardware included for secure installation. Whether used to reduce generator load or to support large battery banks, the ARCO Zeus alternator offers a powerful, efficient, and dependable solution for demanding power needs.

Features:

• Engineered for high energy production at low RPMs for reliable power output

• Suitable for marine, RV, military, and commercial applications

• Rapidly charges large battery banks with sustained high amperage

• Operates cooler thanks to heat shedding coatings and dual cooling fans

• Rectifier located on the exterior housing for improved heat dissipation

• Utilizes OEM components for durability and longevity

• Optimized for performance at cruising speeds to reduce engine load

• Reduces reliance on external generators by creating additional power from engine RPM

• Unleashes peak performance with E-Coat/Cerakote coating for sustained amperage

• Compatible with ARCO Bluetooth Alternator Regulator for advanced control and lithium battery charging

• SAE J1171 certified for safety and reliability

• Made in the USA with high-quality materials for demanding environments