![]() That said, in current industrial controls practice, “contactor” refers specifically to a normally-open relay that makes or breaks a connection between input and output terminals without a common terminal, is rated for high current and high voltage, and is mechanically guaranteed to open all terminals simultaneously and to suppress any internal arc – i.e. They are effective for this purpose, but I would absolutely not recommend or install one for any application with a charging current of more than about 30 A. We use a cheap diode isolator on the RV to allow its house battery to be charged by the truck, without back-feeding the truck or the 12V side of the 3-way fridge when the alternator is not spinning. Q&A-Are Battery Desulphators a Good Idea? How Lead Acid Batteries Get Wrecked and What To Do About Itīattery Monitors, Part 1-Which Type Is Right For You?īattery Monitors, Part 2-Recommended Unitīattery Monitors, Part 3-Calibration and Use How Hard Can We Charge Our Lead-Acid Batteries? ![]() WakeSpeed WS500-Best Alternator Regulator for Lead Acid¹ and Lithium BatteriesĮfficient Generator-Based Electrical Systems For Yachtsīattery Bank Size and Generator Run Time, A Case StudyĪ Simple Way to Decide Between Lithium or Lead-Acid Batteries for a Cruising BoatĮight Steps to Get Ready For Lithium BatteriesĨ Tips To Prevent Lithium Battery Load Dumpsīuilding a Seamanlike Lithium Battery Systemġ1 Steps To Better Lead Acid Battery Life Stupid Alternator Regulators Get Smarter…Finally Cross-Bank Battery Charging-Splitters and RelaysĬross-Bank Battery Charging-DC/DC Chargers.Should Your Boat’s DC Electrical System Be 12 or 24 Volt?-Part 2īattery Bank Separation and Cross-Charging Best Practices Should Your Boat’s DC Electrical System Be 12 or 24 Volt?-Part 1 The Danger of Voltage Drops From High Current (Amp) Loads How Batteries Charge (Multiple Charging Sources Too)ĥ Safety Tips For Working on Boat DC Electrical Systemsħ Checks To Stop Our DC Electrical System From Burning Our BoatĬruising Boat Electrical System Design, Part 1-Loads and ConservationĬruising Boat Electrical System Design, Part 2-Thinking About SystemsĬruising Boat Electrical System Design, Part 3-Specifying Optimal Battery Bank Sizeīalancing Battery Bank and Solar Array Size One Simple Law That Makes Electrical Systems Easy to Understand Why Most New-To-Us Boat Electrical Systems Must Be Rebuilt Previous: Choosing & Installing Battery Switches Every Keyline Chargers Professional Grade, Heavy Duty 300 Amp Dual Battery Isolator is backed by an industry leading 3-year warranty.Next: Cross-Bank Battery Charging-DC/DC Chargers.then please consider our 300 amp dual battery complete kit. This battery isolator does not come with any other installation accessories, if you need wire and terminals, etc. This is only the isolator by itself with the mounting screws and connecting post nuts and bolts. We made this High Amperage isolator for the person who wants to select their own wire and installation accessories.This compact battery isolator was built ultra-small to fit almost anywhere! A perfect fit under the hood or anywhere to get close to your batteries. This international Protection rating means that your Keyline isolator is safe for use even for your off-road needs in dusty, wet, and unexpected extreme weather environments. Unlike other isolators on the market, the Keyline Pro HD Automatic 300 Amp Dual Battery Isolator is IP65 Certified.The Keyline Chargers Pro HD Dual Battery Isolator is a Voltage Sensitive Relay (VSR) that cuts in at 13.3 volts and cuts out at 12.8 volts to ensure your start battery is always charged. Forget the traditional diode relays and so-called “solid state” devices that can rob you of almost 2 amps of output power! The Keyline Dual Battery Isolator is the only unit designed with cutting edge programming to deliver optimum performance – with ZERO sacrifice.Key line Chargers has the ONLY 300-amp Dual Battery Isolator on the market! Our 300-amp Dual Battery Isolator is the BEST charging solution for high capacity dual battery systems. Do you have more than 150 amp hour capacity of auxiliary battery? Do you need even MORE power and amperage for your additional accessories or inverters? When our standard 140 amp isolator isn’t enough, you need the Heavy Duty Keyline 300 amp isolator.
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