ElectroMaaX GenMaaX Alternator 24V 165A Remote Rectifier
ElectroMaaX GenMaaX Alternator 24V 165A Remote Rectifier
SKU:ELCGM-SM-24-165A-RR
Advanced battery systems need advanced alternators designed for the application. The GenMaax series of alternators from ElectroMaax does just that. Designed specifically for continuous ultra high output applications in the marine environment but with a small footprint to fit a vast majority of engines.
Key Features:
- 24V
- 165A max output
- Small frame size for the amperage
- High output at lower RPMs
- Remote rectifier
- Simplified wiring & installation
- aircraft grade 6061 aluminum
- Black anodized for premium corrosion resistance
- Ideal for lithium ion batteries and large battery banks
- Available in common mounting sizes for a majority of engines
- Can be wired for P-Type or N-Type regulators
Must be installed with external regulator: Shop regulator
The problem with most alternators is they were designed for lead acid battery charging in the automotive industry. Lead acid commonly only accepts 25% of the amp-hour rating, so the alternators that charge them were not designed to output 100% continuously. With the introduction of lithium technology now batteries can accept nearly 100% of their amp-hour rating. Traditional alternators simply can't handle that and will either burn out or temperature compensate their output down to mundane levels.
The GenMaax series of alternators solves this issue by having industry leading heat dissipation. With it's innovative remote rectifier design the highest heating component (the rectifier) is removed from the case of the alternator which also removes 50% of the heat. With the rectifier now removed from the housing it allowed ElectroMaax engineers to design a proper rectifier that can handle continuous high loads. The rectifier as more diodes which provides more power to your batteries. It includes a dedicated fan that mounts directly to the rectifier for further cooling.
The alternator was designed from the ground up specifically for the how marine engines are used. With specialized windings the GenMaax can output higher amperages at lower RPMs without the need for large pulley ratios. This allows boaters to us the GenMaax as a generator supplement or replacement.
The alternator housing is made out of anodized aluminum. Anodizing dissipates 50% more heat than powder coated alternators but provides all the corrosion resistance needed in the marine industry, with no risk of chipping.
With all of that heat dissipation, and the rectifier mounted remotely, the alternator is smaller than others in it's amperage range, and can provide nearly 100% output continuously with little risk of temperature compensation. All at low RPMs which are typical in the marine industry.
Specifications
Specifications
Nominal Voltage: 24V
Max Amperage: 165A
Poles: 12
Pulley: 10 Groove Serpentine (PN: 20-EAP-4J100)
Max Continuous RPM: 18,000
Max Intermittent RPM: 19,000
Regulator: None (Requires external)
Temperature Limits: -40C to 150C
Field Output: User Selectable P-Type or N-Type (see manual for wiring details)
Installation Details
Installation Details
There are 4 common mounting styles in the marine industry.
3.15in Dual Foot (Saddle mount)
This is a standard for Yanmar engines and is also common on Mercruiser, Lehman, Perkins, and Hitachi. The 3.15in is measured between the two mounting feet.
4in Dual Foot (J-180)
This mount is common on larger engines when you are replacing a large frame alternator. The 4in mount is standard for newer Volvo Penta engines built post 2005. Also found on higher horsepower engines from manufacturers like Cummins, Caterpillar, John Deere, Detroit Diesel, and MTU.
The 4in is measured between the two mounting feet.
1in Single Foot*
This mount is primarily found on smaller horsepower engines by Caterpillar, Atomic, Ford, and Crusader.
The 1in is the thickness of the mounting foot that bolts into the engine (opposite the tensioning arm).
2in Single Foot*
This mount was standard on Volvo Penta engines built prior to 2005. It is also common on mid-horsepower older engines from Cummins, Mercruiser, Perkins, Westerbeke, and GM.
The 2in is the thickness of the mounting foot that bolts into the engine (opposite the tensioning arm).
*We offer the 1in and 2in foot as a single item. It comes with a frame designed for a 1in foot and includes an optional 1in spacer. If mounting in a 1in foot application remove the spacer, if mounting in a 2in foot application leave the spacer in.
You can verify what alternator type you have by measuring the mounting foot (or dual foot spacing) that is not attached to the tensioning arm. Feel free to email us those pictures with your engine information and we will help verify.
Pelagic Power Tip
Pelagic Power Tip
There are 3 critical pieces in the alternator system.
1 - Alternator: Driven by engine belts, magnets spin on a rotor around coil windings to produce raw AC electricity.
2- Rectifier: Takes the raw AC electricity that is coming in pulses from the alternator, and smooths out the power to clean DC power.
3 - Regulator: Controls the DC power from the rectifier to proper voltages and amperages to safely charge your batteries, regardless of the RPM.
Due to our focus on advanced battery systems we usually recommend pairing all high output alternators with an external regulator. This allows customized charging to fit your specific system. The GenMaax line of alternators does not have an internal regulator and must be paired with an external.
Make sure to purchase a regulator based on your system voltage and the field polarity of your alternator. P-type is the most common alternator in North America while N-type is common in Europe. The GenMaax remote rectifier line of alternators can be wired in P-Type or N-Type giving you ultimate flexibility. Give us a call with any questions.
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