2020 Blue Sea Systems Catalog

bluesea.com 160 APPENDIX Battery Management Wiring Schematics for Typical Applications Batteries are at the heart of the electrical system found on any boat or vehicle. Proper battery management, including switching and charging, is essential for safe and reliable operation. The following wiring diagrams show how batteries, battery switches, and Automatic Charging Relays are wired together from a simple 1 battery - 1 engine configuration to a 4 battery - 2 engine - 1 generator system. For more detailed wiring guidelines please consult a qualified marine electrician or one of the many books available on the subject. Note: The ACRs pictured are representative of any ACR. The battery switches are representative of any Battery Switch of the same model. Simultaneously switches two isolated battery banks or combines battery banks to all loads. 1 Dual Circuit Plus™ Battery Switch 1 Automatic Charging Relay Can isolate a failed battery. 3 ON-OFF Battery Switches 1 Automatic Charging Relay Note: Uses same style batteries 2 Battery - 2 Engine House battery is shared with one engine. One engine battery is in reserve. 2 Selector Battery Switches 1 Automatic Charging Relay Engines share one battery. House battery is in reserve. 1 Dual Circuit Plus™ Battery Switch 1 Automatic Charging Relay Can isolate a failed battery. 3 ON-OFF Battery Switches 1 Automatic Charging Relay Normal - Set all switches to position 1 Parallel - Set all switches to position 1+2 Isolate - Set Load switch to position 2 and Source Switch to position 1+2 The diagrams above are intended for reference only. Consult an ABYC certified marine electrical professional for system design and circuit protection. ACR Start House House Engine ACR House House Start Engine ACR Start House House Engine ACR House Start Start/ House Engine Engine ACR Start House House Engine Engine ACR Start House House Engine Engine Saves battery power for starting. 1 ON-OFF Battery Switch 1 Low Voltage Disconnect House Start Engine Start LVD Battery Switch Engine Stereo 1 Battery - 1 Engine Switches a single battery to a single load group. ON-OFF Battery Switch 2 Battery - 1 Engine Switches isolated battery banks to all loads or combines battery banks to all loads. 1 Selector Battery Switch 1 Automatic Charging Relay

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