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Common Switching Applications

February, 15 2006

The wiring diagrams presented below are for several common switching applications that you may want to wire through your WeatherDeck™ Panel, or through any branch circuit distribution panel. The schematic representations for switch actions are presented in the table below.

SPST - Single Pole Single Throw
SPDT - Single Pole Double Throw
DPST - Double Pole Single Throw
DPDT - Double Pole Double Throw

HornSPST - OFF/(ON)




Navigation Lights (Independent bulb)SPDT - ON/OFF/ON



Bilge PumpSPDT - ON/OFF/(ON)



Trim tabs (independent operation of each tab)SPDT - (ON)/OFF/(ON)



Navigation Lights and Anchor lights (Shared bulb)DPDT - ON/OFF/ON

To see more wiring examples/applications for navigation lights, see Technical Brief: Navigation Light Switching for Vessels Under 20M.



Switching not just for power-Switching AudioDPDT - ON/OFF/ON



Note: Switch both speaker wires to prevent possible damage to audio and VHF amplifiers.



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