hi guys,
i am putting in 2 toggle switches. which wire is better to control with the switch-pos.or neg.?
if it matters, it is a simple single throw on/off switch. one would control a dash cam and the other a medium size rear yellow strobe bar.
thanks.

Unless the terminals are marked or there are instructions that indicate otherwise it shouldn't matter. The switch just completes the current path.

thats what i figured, but i didnt know if there was a preferred way. for instance maybe you dont use pos because it has current and neg would just be completeing it? if thats even a thing, :confused

[This message has been edited by maybenot (edited 02-22-2014).]

Yea that is true on more complex setups, but on a setup like that you will be fine. Just remember to place an inline fuse between the line you tap before it gets to your toggle switch.

got it, thanks

Unless there is a specific reason not to, always place the switch on the "hot" side of a circuit, as close to the power source as possible. If you place the switch on the "ground" side, the entire circuit upstream of the switch will be "hot" at all times, even when the switch is open (i.e. "off"). The general wiring layout should be:

Power Source --> Fuse or Circuit Breaker --> Switch --> Load --> Ground

[This message has been edited by Marvin McInnis (edited 02-23-2014).]

see, thats why i asked. thank you for the preferred way.