{"product_id":"newmar-power-1-2-120-battery-isolator-120-amp-heavy-duty-dc-system-separator","title":"Newmar Power 1-2-120 Battery Isolator — 120 Amp Heavy-Duty DC System Separator","description":"\u003cp\u003e\u003cstrong\u003e1-2-120 Battery Isolator\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis heavy-duty isolator allows multiple batteries to charge 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. This model is a 120-amp alternator.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eConservatively rated diodes and a rustproof anodized aluminum heat sink case\u003c\/li\u003e\n\u003cli\u003eHeavy duty construction\u003c\/li\u003e\n\u003cli\u003eRated for systems up to 48 volts DC, negative ground\u003c\/li\u003e\n\u003cli\u003eRust-proof anodized aluminum case\u003c\/li\u003e\n\u003cli\u003eStainless steel mounting hardware provided\u003c\/li\u003e\n\u003cli\u003eProtective covers provided for terminals\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eOperating Temperature: -40 to +80\u003c\/li\u003e\n\u003cli\u003eDuty Cycle: Continuous rating to 50 C Derate linearly to 70% @ 80 C\u003c\/li\u003e\n\u003cli\u003eTemp. Rise: 5 C at full rated current (mount vertically for optimum cooling)\u003c\/li\u003e\n\u003cli\u003eVoltage Drop: 0.7V @ 50% load, 0.9V @ full load\u003c\/li\u003e\n\u003cli\u003eAlternator Sources: 1\u003c\/li\u003e\n\u003cli\u003eBattery Bank: 2\u003c\/li\u003e\n\u003cli\u003eMax. Amperage Input Capacity: 120\u003c\/li\u003e\n\u003cli\u003eStud Terminal Size: 6mm\u003c\/li\u003e\n\u003cli\u003eDimensions (L x W x H): 6.5\" x 4.5\" x 3.1\"\u003c\/li\u003e\n\u003cli\u003eWeight: 3 lbs.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eNote\u003c\/strong\u003e: 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\u003c\/p\u003e \u003c!--- cis2:m2lumZRk ---\u003e\n\u003cp\u003eThe Newmar Power 1-2-120 Battery Isolator is designed to efficiently manage multiple battery banks in 12-, 24-, or 36-volt negative ground DC systems. Its heavy-duty construction ensures reliable performance in demanding environments, allowing automatic charging from one or two alternators while preventing battery discharge or cross-dumping. This model is rated for a maximum of 120 amps, making it suitable for various automotive, marine, and RV applications. The isolator features conservatively rated diodes and a rustproof anodized aluminum heat sink case to ensure durability and effective thermal management during operation. Its robust design includes stainless steel mounting hardware and protective covers for terminals, facilitating secure installation and safeguarding against accidental contact. Operating efficiently across a temperature range of -40°F to +80°F, the isolator maintains continuous duty cycle performance, with a linear derating at higher temperatures to preserve longevity. The voltage drop remains low at 0.7V at half load and 0.9V at full load, ensuring minimal energy loss during operation. Compatibility requires an external excitation lead, as it is not suitable for self-exciting alternators; consult your alternator manufacturer if unsure. Compact and lightweight, the unit measures approximately 6.5 inches long by 4.5 inches wide and 3.1 inches high, weighing around 3 pounds, making it easy to integrate into existing systems. This battery isolator is an essential component for maintaining reliable power distribution and battery health across multiple banks, ensuring your electrical system performs optimally in demanding conditions.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eConservatively rated diodes and rustproof anodized aluminum heat sink case for durability and thermal efficiency\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eHeavy-duty construction designed for demanding applications\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eRated for systems up to 48 volts DC with negative ground\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eIncludes stainless steel mounting hardware and protective terminal covers for secure installation\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eDesigned for continuous operation with a temperature range of -40°F to +80°F and linear derating at higher temperatures\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eLow voltage drop of 0.7V at half load and 0.9V at full load to minimize energy loss\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eMaximum capacity of 120 amps, suitable for multiple battery banks\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eCompact dimensions and lightweight design for easy integration into various systems\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eRequires external excitation lead; incompatible with self-exciting alternators\u003c\/li\u003e\u003c\/ul\u003e","brand":"Newmar Power","offers":[{"title":"Default Title","offer_id":44441206685738,"sku":"102292","price":196.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2285\/8794\/files\/102292XL.jpg?v=1780938290","url":"https:\/\/atticusgoods.com\/products\/newmar-power-1-2-120-battery-isolator-120-amp-heavy-duty-dc-system-separator","provider":"Atticus Goods","version":"1.0","type":"link"}