Brand: Newmar Power
Newmar Power 1-2-120 Battery Isolator, 120 Amp
Newmar Power 1-2-120 Battery Isolator, 120 Amp
2 available
About this product
Newmar Power 1-2-120 Battery Isolator directs charging from one alternator to two battery banks while helping prevent one battery from discharging into another. The 120-amp isolator is intended for negative-ground DC systems and includes protective covers and stainless steel mounting hardware.
- Alternator sources: 1
- Battery banks: 2
- Maximum amperage input capacity: 120 amps
- System rating: up to 48 volts DC, negative ground
- Voltage drop: 0.7V at 50% load; 0.9V at full load
- Operating temperature: -40 to +80 °C
- Duty cycle: Continuous rating to 50 °C; derates linearly to 70% at 80 °C
- Temperature rise: 5 °C at full rated current; vertical mounting is recommended for optimum cooling
- Stud terminal size: 6mm
- Dimensions: 6.5 in. L x 4.5 in. W x 3.1 in. H
- Weight: 3 lbs.
- Construction: Anodized aluminum heat-sink case with conservatively rated diodes
- Included: Stainless steel mounting hardware and protective terminal covers
- Compatibility: Not compatible with self-exciting alternators; the alternator must have an external excitation lead
Manuals & videos
- Secure checkout
- 21-day return requests
- Free standard shipping $100+
Product facts
- CT SKU
- CT-115710
- Model / MPN
- 1-2-120
- Package dimensions (H × W × L)
- 4" X 9" X 10"
- Package weight
- 2.6 lb
Specifications
- Type
- Newmar 1-2-120 Battery Isolator
Fit-sensitive item: confirm measurements, model numbers, and manufacturer details before ordering. Tug & Tow does not guarantee universal compatibility from a product page alone.
Shipping & returns
Shipping & returns
Request an eligible return within 21 calendar days after delivery. Every physical return requires written approval and an RMA number and must be shipped within five business days after the RMA is issued. The customer pays return shipping for an ordinary return. Tug & Tow provides prepaid return shipping for a verified damaged, defective, short, or incorrect shipment. We do not charge a restocking fee. See Shipping & Returns for eligibility, exclusions, and details.
Fit & compatibility
Fit & compatibility
Review the product title, description, images, dimensions, part numbers, and manufacturer details before purchase. For fit-sensitive items, confirm compatibility with your boat, RV, trailer, vehicle, or equipment.
Need help choosing?
Need help choosing?
Send us the product link or SKU, plus details about your boat, RV, trailer, vehicle, or project. We will help you narrow down the right option when product fit is not obvious.
