NewMar 1-3-165 Battery Isolator 1 Alternator 3 Bank 165 Amp

The NewMar 1-3-165 is a heavy-duty battery isolator designed to automatically charge multiple batteries from a single alternator while preventing discharge or 'dumping' of one battery into another. Each battery is charged according to its individual need without overcharging, making it ideal for marine, RV, and commercial vehicle applications with 12-, 24-, or 36-volt negative ground DC systems.

Key Features:

• Conservatively rated diodes with rustproof anodized aluminum heat sink case for superior heat dissipation
• Heavy-duty construction rated for continuous use in demanding environments
• Compatible with systems up to 48 volts DC, negative ground
• Includes stainless steel mounting hardware and protective terminal covers
• Vertical mounting recommended for optimum cooling performance

Technical Specifications:

• Alternator Sources: 1
• Battery Banks: 3
• Maximum Amperage Input Capacity: 165 amps
• Stud Terminal Size: 6mm
• Voltage Drop: 0.7V at 50% load, 0.9V at full load
• Operating Temperature Range: -40°F to +80°F
• Temperature Rise: 5°C at full rated current
• Duty Cycle: Continuous rating to 50°C, derate linearly to 70% at 80°C
• Dimensions: 9" L x 4.5" W x 3.1" H
• Weight: 5 lbs

Important Compatibility Note: This battery isolator is not compatible with self-exciting alternators. Your alternator must have an external excitation lead. Consult your alternator manufacturer if you are unsure of your configuration.