marinco.com BATTERY MANAGEMENT 61 Alternator Field Disconnect (AFD) Allows selection of any position, including “Off,” without damage to alternator or electrical system. AFD is required on some electrical systems. • Heavy-duty copper sweep contacts • Positive click-stop on all positions • “Make before break” contacts allow selection of all positions except “Off” while engine is running • New design is easy to retrofit into existing hole patterns • Use with 6V, 12V, 24V or 36V systems • Built-in skirt protects connections • Surface or rear panel mounting • Marine grade construction Important Note: The boater’s electrical needs and problems should be discussed with your boatyard’s electrical technician. One battery selector switch, one On/Off selector switch automatic battery isolation and automatically charges three batteries Installation: Use for sailboats and trawlers. Third battery isolated from other ship circuits. All batteries being automatically charged while running through isolator. To be used for refrigeration or other heavy load devices. Isolator protects other batteries. Switch selector usage: 1. Master disconnect 2. Emergency parallel function Adding automatic battery charger/converters to system Installation: At dock side multi-bank charger built in isolator which will automatically charge lower battery. 12 VOLT BATTERY 12 VOLT BATTERY ALT STARTER REFRIG SELECTOR SW ON/OFF SWITCH ENGINE ISOLATOR 1 3 1 3 2 2 3 2 12 VOLT BATTERY 1 12 VOLT BATTERY 12 VOLT BATTERY ALT STARTER BATTERY CHARGER BATTERY SELECTOR SWITCH ENGINE ISOLATOR 1 1 2 2 2 1 Three batteries, one battery selector switch, one On/Off or selector switch, two alternators, one isolator Installation: Isolator separates both alternators so both alternators will charge simultaneously. Automatically charges lowest battery first. All batteries can be used for start, third battery, ship’s source. 12 VOLT BATTERY 12 VOLT BATTERY ALT STARTER REFRIG SELECTOR SW ON/OFF SWITCH ENGINE ISOLATOR 1 3 1 3 2 2 3 2 12 VOLT BATTERY 1 Exclusive flat 360 “sweep” contact design provides up to 60% more contact area than other switch designs.
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