Newmar Battery Isolator

The Newmar battery isolator enables automatic charging of multiple batteries from one or two alternators while preventing battery discharge between banks. It supports 12V to 48V negative ground DC systems with durable construction and efficient heat dissipation.

Features:

• Heavy-duty design with rustproof anodized aluminum heat sink for effective cooling
• Supports multiple alternator and battery bank configurations for versatile use
• Includes stainless steel mounting hardware and protective terminal covers for durability
• Low voltage drop ensures efficient power transfer under varying loads
• Continuous duty rating with thermal protection for reliable long-term operation

Specifications:

• Operating Voltage: 12V to 48V DC
• Operating Temperature: -40 to 80 deg. C
• Max Input Current: 70A, 120A, or 165A Depending on Model
• Stud Terminal Size: 6 mm
• Voltage Drop: 0.7V at 50% Load, 0.9V at Full Load
• Temperature Rise: 5 deg. C at Full Load (Except One Model at 95 deg. C)
• Dimensions (W x H x D): 3.25" x 4.5" x 3.1" to 12.5" x 4.5" x 3.1"
• Weight: 2 to 5 lbs
• Duty Cycle: Continuous to 50 deg. C, Derates to 70% at 80 deg. C
• Battery Banks Supported: 2 or 3
• Alternator Sources Supported: 1 or 2

Compatibility:

• Designed for 12V, 24V, and 36V Negative Ground DC Systems
• Requires Alternators with External Excitation Leads

Installation Instructions