Electrical - Battery Isolators

35 products


  • Sale -44% ProMariner Battery Isolator - 130 AMP - 2 Alternator - 3 Battery [12133]

    ProMariner Battery Isolator - 130 AMP - 2 Alternator - 3 Battery [12133]

    10 in stock

    Battery Isolator - 2 Alternator - 3 Battery - 130 AMPProMariner Battery Isolators with gold-plated terminals and improved efficiency, provide enhanced charging. Rated for use with DC devices ranging from 10 amps to 130 amps. Owner's Manual (pdf)

    10 in stock

    $658.99$369.50

  • Sale -25%Last stock! Newmar 1-3-165 Battery Isolator [1-3-165]

    Newmar 1-3-165 Battery Isolator [1-3-165]

    1 in stock

    1-3-165 Battery IsolatorThis 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: 165   Stud Terminal Size: 6mm     Dimensions (L x W x H): 9 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 configurationThis product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns. Quick Guide (pdf)

    1 in stock

    $473.00$353.50

  • Sale -45% ProMariner ProSafe FAILSAFE 60amp Galvanic Isolator [22074]

    ProMariner ProSafe FAILSAFE 60amp Galvanic Isolator [22074]

    25 in stock

    ProSafe FAILSAFE 60amp Galvanic IsolatorProSafe FS installs easily and does not require a dedicated monitor to verify the operational status of the galvanic isolator as required by non FailSafe Certified galvanic isolators.ProSafe FS 60 is built on robust FlatPack semiconductor platforms ensuring that in the event of a failure, the failure is safe by not compromising the ground continuity on-board when connected to AC Shore Power. ABYC A-28 July '08 Compliant and Fail Safe CertifiedCertified by Underwriters Laboratories (UL). Insures shore power safety ground wire is maintained through the isolator. Flat Pack High Power SemiconductorsRobust high power diodes allow the FS Series to meet the new FailSafe criteria for conducting inrush currents of 3,000 amps for the required duration period. Ignition ProtectedMeets ISO 8846 and can be mounted within an engine compartment. Gold Plated Terminations WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov. Owner's Manual (pdf)

    25 in stock

    $676.99$374.50

  • Sale -42% Mastervolt Battery Mate 1602 IG Isolator - 120 Amp, 2 Bank [83116025] Mastervolt Battery Mate 1602 IG Isolator - 120 Amp, 2 Bank [83116025]

    Mastervolt Battery Mate 1602 IG Isolator - 120 Amp, 2 Bank [83116025]

    7 in stock

    Battery Mate 1602 IG Isolator - 120 Amp, 2 BankThe Battery Mate is the ultimate solution for charging several batteries simultaneously and is compatible with any type of alternator/battery charger, in both existing and new systems. As the voltage loss between the alternator and battery is negligible, the Battery Mate performs far better than conventional battery isolators. This ensures fast and complete charging of your batteries without having to make additional adjustments to the alternator.While battery isolators are conventional diode splitters, the Battery Mate's technology is electronic and includes mosfets (transistors). Its components compensate for variations in voltage and ensure that charging continues at the right voltage level, even with several battery banks. The input side on the Battery Mate is connected to the alternator and/or battery charger, while two batteries are connected to the output side. The Battery Mate is easy to install on a DIN rail (industry standard).The Mastervolt Battery Mate can be used in any application even if the standard alternator need external excitation or voltage sensing. In this case the additional IG contact can be connected.WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov. Specifications: Continuous Amperage: 120 Box Dimensions: 4"H x 6"W x 9"L WT: 2.5 lbs UPC: 852968002714 Quick Guide (pdf)Owner's Manual (pdf)

    7 in stock

    $477.99$276.50

  • Sale -27% Newmar GI-30-FS Galvanic Isolator 30A Fail Safe [GI-30-FS]

    Newmar GI-30-FS Galvanic Isolator 30A Fail Safe [GI-30-FS]

    6 in stock

    GI-30-FS Galvanic Isolator 30A Fail SafeInstalling the Galvanic Isolator between the AC safety ground and DC bonding system blocks most of the low-voltage currents and corrosive action seen on the vital metallic components in the saltwater. With the low voltage current blocked, the galvanic corrosion effect on the sacrificial anodes is significantly reduced, while the integrity of the critical safety ground path is maintained. This means a significant saving in boat haul-out fees and zinc replacement costs. For additional safety, all units feature a large capacitor, providing a secondary low-impedance path for sending AC current to the ground.Newmar’s latest galvanic isolator meets the latest ABYC A-28 2019 requirements, including being a failsafe. This design can meet the strictest temperature and current tests to create a robust solution for galvanic protection.Features: Protects against corrosion Maintains a safe environment Certified to the UL1500 standard for Ignition Protection Tested to a 50 degrees C ambient temperature The 30A fail-safe feature ensures ground maintenance Connection in the event of isolator failure Specifications: Shore Power Voltage: 115–230V    Maximum Short Circuit: 5000 Amps Stray Current Protection: Up to 1.4 VDC Dimensions (LxWxH): 200 x 189 x 68.5 mm This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns. Quick Guide (pdf)

    6 in stock

    $324.00$237.50

  • Sale -32%Last stock! Sea-Dog Smart Dual Battery Isolator [422790-1]

    Sea-Dog Smart Dual Battery Isolator [422790-1]

    1 in stock

    Smart Dual Battery IsolatorThis Smart Dual Battery Isolator is ideal for dual battery applications. Allows two batteries to automatically charge at the same time and then isolates the batteries, ensuring the starting battery is always charged and ready for use. Automatically engages or disengages the circuit at pre-set voltages by sensing the input voltage generated, eliminating the possibility of discharging the primary starting battery. Cut-in voltage: 13.3V. Cut-out voltage: 12.8V. Surge protected. Features an LED indicator to alert the user when the unit is engaged. Constructed of machined brass with a weatherproof injection molded nylon housing and durable silver tipped contacts. Installs with two #8 RH fasteners (included). 12VDC. 140A. IP65 rating. WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

    1 in stock

    $85.95$58.50

  • Sale -19%Last stock! Newmar 2-3-70 Battery Isolator [2-3-70]

    Newmar 2-3-70 Battery Isolator [2-3-70]

    2 in stock

    2-3-70 Battery IsolatorThis 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: 70 Stud Terminal Size: 6mm     Dimensions (L x W x H): 6.5 x 4.5 x 3.1 inches Weight: 4 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 configurationThis product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns. Quick Guide (pdf)

    2 in stock

    $365.00$296.50

  • Sale -44% ProMariner Battery Isolator - 130 AMP - 1 Alternator - 2 Battery [11132]

    ProMariner Battery Isolator - 130 AMP - 1 Alternator - 2 Battery [11132]

    8 in stock

    Battery Isolator - 1 Alternator - 2 Battery - 130 AMPProMariner Battery Isolators with gold-plated terminals and improved efficiency, provide enhanced charging. Rated for use with DC devices ranging from 10 amps to 130 amps. Owner's Manual (pdf)

    8 in stock

    $221.99$124.50

  • Sale -19%Last stock! Newmar 2-3-120 Battery Isolator [2-3-120]

    Newmar 2-3-120 Battery Isolator [2-3-120]

    3 in stock

    2-3-120 Battery IsolatorThis 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)

    3 in stock

    $653.00$530.50

  • Sale -42% Mastervolt Battery Mate 2503 IG Isolator - 200 Amp, 3 Bank [83125035] Mastervolt Battery Mate 2503 IG Isolator - 200 Amp, 3 Bank [83125035]

    Mastervolt Battery Mate 2503 IG Isolator - 200 Amp, 3 Bank [83125035]

    10 in stock

    Battery Mate 2503 IG Isolator - 200 Amp, 3 BankThe Battery Mate is the ultimate solution for charging several batteries simultaneously and is compatible with any type of alternator/battery charger, in both existing and new systems. As the voltage loss between the alternator and battery is negligible, the Battery Mate performs far better than conventional battery isolators. This ensures fast and complete charging of your batteries without having to make additional adjustments to the alternator.While battery isolators are conventional diode splitters, the Battery Mate's technology is electronic and includes mosfets (transistors). Its components compensate for variations in voltage and ensure that charging continues at the right voltage level, even with several battery banks. The input side on the Battery Mate is connected to the alternator and/or battery charger, while two batteries are connected to the output side. The Battery Mate is easy to install on a DIN rail (industry standard).The Mastervolt Battery Mate can be used in any application even if the standard alternator need external excitation or voltage sensing. In this case the additional IG contact can be connected.WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov. Specifications: Continuous Amperage: 200 Box Dimensions: 4"H x 6"W x 9"L WT: 2.8 lbs UPC: 816882021053 Quick Guide (pdf)Owner's Manual (pdf)

    10 in stock

    $577.99$334.50

  • Sale -15% Victron Galvanic Isolator VDI-64A 64A Max Waterproof (Potted) [GDI000064000]

    Victron Galvanic Isolator VDI-64A 64A Max Waterproof (Potted) [GDI000064000]

    7 in stock

    Galvanic Isolator VDI-64A 64A Max Waterproof (Potted)The galvanic isolator prevents electrolytic corrosion. It blocks low voltage DC currents that enter your boat via the shore power earth wire. These currents can cause corrosion to the boat’s underwater metals, like the hull, propeller, shaft and so on.The galvanic isolator consists internally of two diodes which are connected in anti-parallel fashion. When they are connected in this way, the diodes allow current in both directions but only above a certain threshold voltage. The voltage at which diodes conduct is about 1.4 Vdc.The isolator is installed directly behind your boat's 120V - 230V connection. The forward voltage from the galvanic isolator is higher than the potential difference between metals. As a result, this voltage will not allow conduction and as such, the galvanic isolator will prevent any electrolytic current. However, if there is a (higher) error voltage in the AC circuit, the diodes will allow current through and the residual-current device will break the circuit.Terminal posts are 6MM (1/4")This item is not ABYC A-28 approvedPlease contact your dealer for any returns, repairs or support issues related to this product. Quick Guide (pdf)Owner's Manual (pdf)

    7 in stock

    $359.00$305.15

  • Sale -19%Last stock! Newmar 1-2-120 Battery Isolator [1-2-120]

    Newmar 1-2-120 Battery Isolator [1-2-120]

    4 in stock

    1-2-120 Battery IsolatorThis 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.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 provided Protective covers provided for terminals Specifications: Operating Temperature: -40 to +80° Duty Cycle: Continuous rating to 50° C Derate linearly to 70% @ 80° C Temp. Rise: 5° C at full rated current (mount vertically for optimum cooling) Voltage Drop: 0.7V @ 50% load, 0.9V @ full load Alternator Sources: 1 Battery Bank: 2 Max. Amperage Input Capacity: 120 Stud Terminal Size: 6mm Dimensions (L x W x H): 6.5" x 4.5" x 3.1" Weight: 3 lbs. 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

    4 in stock

    $255.00$207.50

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