I am wiring my layout with spst toggle switches with an LED in the handle. The three prongs on the botton are labeled power, acc and ground. Where does the ground wire connect to?
Thanks
I assume "ACC" means "accessories" or something like that.
Your power supply has two outputs. For most applications, it doesn't matter which you define as "power" and which as "ground." For an illuminated toggle, connect the "power" post on the supply to the "power" post on the toggle. The "ACC" post on the toggle goes to your lights, or whatever. The "ground" post on the supply goes to both the "ground" on the toggle and the other wire of the lights.
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The LED will need a bias reistor matched to the lamp voltage supply. If the resistor is not part of the switch you will have to supply one. If the switch is disigned for automovtive use it may a built in resistor for 12 DVC.
The 'power' is the power source, 'acc' is the item the switch sends power to and the 'ground' connects to the negative terminal on your power sower source so the led's in the switches will light. Even if these are automotive quality you will most likely need a resistor in line on the ground.
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