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Great Water, Inc.
14 Maine St -Box 34
Brunswick, ME 04011
207 729 8500 TEL
517 813 6509 FAX

High Output Alternators

AMPTECH alternators reliably deliver a high DC output current at low rotor RPM.

Automotive type alternators with internal regulators are designed to recharge starting batteries. Large Deep-cycle house battery banks require an alternator designed from the ground up to deliver maximum output for longer periods of time. Most models are designed to work with external regulators to provide high charging rates at the correct voltage for optimum battery charging and cycle life.

Great Water, Inc. has many years of experience with AMPTECH products in marine DC power systems and has found them to be excellent quality, high performance and reliable.

We now offer many models and parts on our Web Store.

'S' SERIES SMALL FRAME ALTERNATORS

Direct mount replacement for many marine engines. High output from alternator can be achieved on single standard engine belt and pulley.

• 3 mounting foot configurations
• 125-amp and 140-amp 12 VDC models
• 75 amp 24 VDC models
  
• SAE continuous rated output for high temperature bulk charging applications
  
• Marine certified - complies with Coast Guard and BIA standard, Title33 CFR, Part 183, Sub part 1, section 183-410 (Ignition protected)
  
• Isolated floating ground available on most models to protect against electrolysis
  
• 6 x 50-amp high voltage diodes
  
• 14-guage hand wound stator
  
• Precision balanced rotor
  
• Extended life copper composite brushes
  
• Heavy-duty bearings with high temperature grease
• 2 x 5/16" cable posts
• Hand crafted in U.S.A

'L'SERIES LARGE FRAME ALTERNATORS

Larger frame models have increased cooling. In most cases will require custom mounting.

• 163 to 203 amp 12 volt models
• 135 amp 24 volt models
• Direct mount replacement on some larger engines
  
• SAE continuous rated output for high temperature bulk charging applications
  
• Marine certified - complies with Coast Guardand BIA standard, Title 33 CFR, Part 183, Subpart 1, Section 183-410(Ignition protected)
  
• Isolated floating ground to protect against electrolysis
  
• 12 x 50-amp high voltage diodes mounted on Cool Flow" precision cast heat sink
  
• 12-gauge hand wound stator (14 gauge on 24 volt model)
  
• Precision balanced rotor
  
• Extended life copper composite brushes
  
• Heavy-duty bearings with high temperature grease
  
• 2 x 5/16" cable posts
  
• Hand crafted in USA
  

CODE 3' J180 CASE ALTERNATORS

Code 3 model has highest output. In many cases will require custom mounting.

• 203 to-311 amp 12 volt models
  
  • 163-amp 24 volt model
    
  • Industry standard J180 case for direct OEM replacement
    
  • SAE continuous rated output for high temperature bulk charging applications
    
  • Maximum 8000 RPM operating speed
    
  • Marine certified - complies with Coast Guard and BIA standard, Title 33 CFR, Part 183, Sub part 1, section 183-410 (Ignition protected)
  • Isolated ground to protect against electrolysis
    
  • 24 x 50-amp high voltage diodes
    
  • Massive 11-gauge hand wound stator for coolest operation at maximum output
    
  • Precision dynamically balanced high-amp rotor
    
  • Enclosed long-life copper composite brushes