![Newmar 2-3-120 Battery Isolator [2-3-120]](http://harbor-supply.com/cdn/shop/files/102296XL.jpg?v=1731042583&width=1500)
Newmar 2-3-120 Battery Isolator [2-3-120]
Newmar 2-3-120 Battery Isolator [2-3-120] is backordered and will ship as soon as it is back in stock.
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Payment
Payment
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Shipping
Shipping
Ground, 2nd Day Air and Next Day Air available ! Same Day Shipping if your order is placed by 4pm Eastern
Returns
Returns
At Harbor Supply, we aim to ensure you’re completely satisfied with your purchase. If you need to return an item, you have 90 days from the date of delivery to initiate a return.
Eligibility for Returns:
To be eligible for a return:
- The item must be in its original condition—unused, unworn, with all tags still attached, and in its original packaging.
- You’ll need the receipt or proof of purchase.
Please note, returns must be authorized before sending any items back. Items returned without prior authorization will not be accepted.
Newmar 2-3-120 Battery Isolator [2-3-120]
Description
Description
2-3-120 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: 2
- Battery Bank: 3
- Max. Amperage Input Capacity: 120
- Stud Terminal Size: 6mm
- Dimensions (L x W x H): 12.5 x 4.5 x 3.1 inches
- Weight: 5 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
Quick Guide (pdf)
