They are used to connect or disconnect electrical devices from the electrical system. They help to prevent battery drain during periods of inactivity.

They allow for a quick and easy way to shut down the entire electrical system in an emergency. An optional key lock helps to prevent unauthorized use of the vessel. In addition to doing everything a battery disconnect switch does, battery selector switches permit battery selection (of two or more batteries) for specific purposes including starting engines, running accessories or even recharging. They allow for the use of one or more batteries in systems with one or more engines and facilitate putting batteries in parallel for emergency starting when one or both batteries are substantially discharged.Īll Perko battery disconnect switches and battery selector switches are UL listed, ignition protected and CE approved. This means they have been tested and certified by a respected outside agency, are designed to be used safely in a bilge where explosive fumes may be present and meet all the requirements for use and sale throughout the world. Perko battery switches are designed for surface mounting. Standard duty switches have a bright red polycarbonate housing for safety with a large easy-to-turn black knob. Dual Battery Isolator Kit - JOYHO 12V 140Amp.

The housing of the heavy duty switches are red fiber-reinforced polycarbonate. This high-quality system is built to be rugged yet easy to self-install or DIY. It fits a wide variety of trucks and off-road vehicles, so it should work with whatever you have in mind. Read More: The 6 Best Car Accessories Under 100 Making the Everyday Commute Better. Selector switches are designed with a 'make before break' feature. This allows switching between the '1', the 'all' and the '2' positions while the engine is running. Models with an 'Alternator Field Disconnect' feature offer protection for Non-Unitized Alternators should the switch accidentally be turned to the 'OFF' position with the engine running.

Autozone battery isolator