Selector switches are designed with a "make before break" feature. The housing of the heavy duty switches are red fiber-reinforced polycarbonate. Standard duty switches have a bright red polycarbonate housing for safety with a large easy-to-turn black knob. Perko battery switches are designed for surface mounting. 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. 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. 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. An optional key lock helps to prevent unauthorized use of the vessel. They allow for a quick and easy way to shut down the entire electrical system in an emergency. They help to prevent battery drain during periods of inactivity. They are used to connect or disconnect electrical devices from the electrical system.
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