Newmar Power 1-3-70 Battery Isolator for Automotive and Marine Systems

1-3-70 Battery Isolator

This heavy-duty isolator allows charging multiple batteries automatically from one or two alternators and prevents the discharge or dumping of one battery into another. Each battery is charged according to its need without overcharging and is rated for 12-, 24-, or 36-volt negative ground DC systems.

Features:

• Conservatively rated diodes and a rustproof anodized aluminum heat sink case.
• Heavy-duty construction
• Rated for systems up to 48 volts DC, negative ground
• Rust-proof anodized aluminum case
• Stainless steel mounting hardware is provided
• Protective covers are provided for terminals

Specifications:

• Alternator Sources: 1
• Battery Bank: 3
• Max. Amperage Input Capacity: 70
• Stud Terminal Size: 6mm
• Dimensions (L x W x H): 3.25 x 4.5 x 3.1 inches
• Weight: 2 lbs.
• Operating Temperature: -40 to +80 degrees
• Duty Cycle: Continuous rating to 50 degrees C Derate linearly to 70% @ 80 degrees C.
• Temp. Rise: 5 degrees C at full rated current (mount vertically for optimum cooling)
• Voltage Drop: 0.7V @ 50% load, 0.9V @ full load

*Note: These battery isolators are not compatible with self-exciting alternators. The alternator must have an external excitation lead. Please consult the manufacturer of your alternator if you are unsure of your configuration

The Newmar Power 1-3-70 Battery Isolator is a heavy-duty device designed to automatically manage multiple battery banks from one or two alternators. Its advanced diode technology ensures each battery is charged according to its specific needs without overcharging, making it ideal for both automotive and marine applications. This isolator is rated for use in 12-, 24-, or 36-volt negative ground DC systems, providing versatile compatibility across various vehicle and vessel configurations. Constructed with a rustproof anodized aluminum heat sink case, it offers durability and effective thermal management even in harsh environments. The unit features conservatively rated diodes and stainless steel mounting hardware, ensuring reliable performance and ease of installation. Protecting your electrical system, the isolator includes terminal covers and is rated for continuous operation at system voltages up to 48 volts DC, making it suitable for demanding applications. Its compact size and lightweight design make installation straightforward without sacrificing robustness or efficiency. The isolator operates efficiently within a temperature range from -40 to +80 degrees Fahrenheit, with linear derating at higher temperatures to maintain performance. With a maximum input capacity of 70 amps, it handles the power demands of larger battery banks while minimizing voltage drop, ensuring your batteries receive consistent charging. Please note, this product is not compatible with self-exciting alternators; an external excitation lead is required. For optimal cooling, mounting the unit vertically is recommended. Designed and manufactured by Newmar Power, the 1-3-70 Battery Isolator guarantees reliable operation and long-term durability for your charging system needs.

Features:

• Conservatively rated diodes with rustproof anodized aluminum heat sink case for durability.

• Heavy-duty construction suitable for demanding automotive and marine environments.

• Rated for systems up to 48 volts DC, negative ground, for versatile application.

• Includes stainless steel mounting hardware for secure installation.

• Provides protective terminal covers to ensure safety and prevent accidental contact.

• Efficient operation within a wide temperature range from -40 to +80 degrees Fahrenheit.

• Designed to handle a maximum of 70 amps with minimal voltage drop for reliable charging.

• Suitable for use with one alternator and multiple batteries, with automatic charging management.