Blue Sea Systems Si-Series 120 Amp Automatic Charging Relay 7610

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  SI-Series 120 Amp Automatic Charging Relay
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  Automatically combines batteries during charging and isolates batteries when discharging and starting engines
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  Protects sensitive electronics by temporary isolation of house loads from engine circuit during engine cranking
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  12/24 volt auto ranging voltage input
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  Hermetically sealed contacts/vaporproof
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  Waterproof rated IP67 - temporary immersion for thirty minutes
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  Ignition protected - safe for installation aboard gasoline powered boats
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  Remote LED output indicates relay state away from ACR
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  Supports high-output alternators up to 120 Amperes
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  Dual sensing