For the first time ever Compass Marine Inc. is offering a massive J180 large frame high performance externally regulated extreme duty alternator at sub $1000.00 prices. Comparable alternators, from other manufacturers, start at $1200.00 and go up from there.
After many months of testing various large frame J180 mount alternators & the internal components for performance and heat characteristics, Compass Marine Inc. is proud to introduce the CMI-ED200-ER. This 200A alternator is a literal behemoth, similar to the massive alternators found on big-rigs, ambulance, rescue and other applications where high output demand, to run high amperage equipment for long periods of time, is required.
IMPORTANT: This is not a small frame alternator and fitting it to many marine engines, unless it already utilized a J-180 mount large frame alternator, will require custom work on your end. The CMI-ED200-ER has an 20% restocking fee for fitment issues (if it gets back to us in re-saleable condition). Please measure twice and purchase once.
The CMI-ED200-ER is the ideal alternator for charging large AGM, GEL or LiFePO4 battery banks while at the same time keeping costs to a reasonable level. CMI can control these costs because we build these alternators one at a time here in the CMI shop. The only thing we outsource on this alternator is the stator & rotor winding and the dummy regulator, which we have custom manufactured for us. With no other CMI alternator dealers to drive up the end user cost, our prices on externally regulated alternators simply can't be beat.
Pair the CMI-ED200-ER with a Balmar MC-614H and you're still under $949.00 for a 200A extreme duty externally regulated alternator!
The problem with typical commercial and industrial duty-alternators is they are all internally regulated and not well suited to charging the expensive deeply cycled banks normally found on boats. While fairly robust, they are intended to power aux equipment on these rigs, not to properly charge the batteries, in a healthy manner.
Compared to typical small case alternator, with a maximum running temp in the low 200F range, the CMI-ED200-ER can be run at 255F +/- . This means you can actually raise the alternator temp limit on a Balmar regulator, not decrease it. The CMI-ED200-ER can deliver 125A at a typical idle speed (2000 alternator shaft RPM) and over 140A at a "fast idle" or about 2400 alternator shaft RPM. (see performance graph image)
Features & Benefits
*In order to keep costs down this alternator has not been spark tested for USCG compliance for use with gasoline engines.
*Fitment is up to the purchaser. On most sailboat AUX engines fitment will require a custom made mount
*This alternator does not ship with a pulley. We can offer dual v-pulley (not recommended if running the alternator at more than130A), 8 groove serpentine (65mm OD) or a 10 groove J10 type pulley (66mm).
*Also available in a 250A model ($295.00 option)
*250A is a 4-8 week lead time for the custom non-stock stator & rotor winding. 250A model is not recommended for LiFePO4.
Questions: compassmarineservices at gmail dot com