Perko Marine Battery Switches

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Main Disconnect Battery Switch (Perko)
    For use with 12, 24 or 32 volt systems. Medium duty. Capacity - 250 amps continuous, 360 intermittent. Surface Mount. Plastic housing. …
    List price: $50.99
    Starting at:
    $42.14
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    Compact Battery Switch (Perko)
      Compact, medium duty. Requires 1/3 less space to mount with the same bolt pattern as the standard size. Popular 90° easy-to-identify position …
      List price: $72.69
      Starting at:
      $57.32
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      Heavy Duty Battery Selector Switch with Alternator Field Disconnect - Perko
        For use with two or more batteries and single or dual engines. Alternator field disconnect to prevent damage to alternator if accidentally switched …
        List price: $224.99
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        $183.04
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        Battery Switch with Alternator Field Disconnect with Lock - Perko
          On-Off type, available with new key lock option for extra theft protection. Features: AFD (Alternator Field Disconnect) Marine UL Listed switches …
          List price: $68.99
          Your price:
          $57.98
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          Battery Switch with Alternator Field Disconnect without Lock - Perko
            On-Off type, available with new key lock option for extra theft protection. Features: AFD (Alternator Field Disconnect) Marine UL Listed switches …
            List price: $61.19
            Your price:
            $50.46
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            Ignition Protected Battery Selector Switch with Key Lock - Perko
              Marine UL Listed. Make before break contact design makes power connections before breaking a connection for seamless transitions. For use with two or …
              List price: $57.99
              Your price:
              $48.11
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              Ignition Protected Battery Selector Switch without Key Lock - Perko
                Marine UL Listed. Make before break contact design makes power connections before breaking a connection for seamless transitions. For use with two or …
                List price: $50.99
                Your price:
                $42.73
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                7 Items
                 
                Boating Know How
                Infographic

                Blue Sea Systems Tech Tip: Battery Switches Explained

                ... read more Infographic: Marine Battery Switches Explained read less
                Infographic

                Blue Sea Systems Tech Tip: Dual Circuit Plus Explained

                Here you can learn how charge coordination works with our Tech Tip's thorough explanation.... read more Infographic: Dual Circuit Plus Explained

                The Dual Circuit Plus system is best known for its ability to prolong the life of the battery and prevent it from dying. It is useful in the following scenarios:

                • Reducing the time that is ordinarily required to check the battery.
                • Using unpredictable, vulnerable electronics.
                • When it can be paired up with an Automatic Charging Relay (ACR)

                This switch is designed to supply extra power to devices that are hooked up to certain battery banks. Separating the energy of the designated electronic and the engine bank helps to preserve the battery's power and prevents the most sensitive electronics from being damaged by voltage spikes while it is starting up. Together with an Automatic Charging Relay (ACR), the two charges combine and flows to the alternator. This combination creates a battery charge that is twice as effective and helps the battery live at least three times as long. Here are some things to consider when pairing the Dual Circuit Plus system with the ACR:

                • You will need to turn the switch into the “On” position when you are operating it with the power on.
                • If you do not use any power and are storing your application, keep the switch on the “Off” position.
                • When you are jump-starting the application, be sure to turn the switch to the designated half point. Once the engine has been running for a minute, switch it to the “On” position.

                We do recommend advising with a mechanic or a technician before switching to this method.

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