How Many Amps

[MDRAPTR]

How do you determine how many amps you need for a certain device or Light?

 

[The Car Stereo Company]

you should find that devices amperage draw and make sure your fuse/circuit is min 125% of that. for example if your light draws 20 amps, use minimum of 25amp circuit. i would personally use a 30 amp fuse/circuit. the battery/power connection and relay fuse is there to protect the line from a short. every sensitive electronic device will have a seperate specific fuse to protect the device itself and not part of the power connection. you never want to go over 75-80% of a circuits maximum. getting close to the maximum will cause heat issues as well as possible blown fuse due to start up power draw. and worse case scenario, melted wires/fire.

 

[MDRAPTR]

you should find that devices amperage draw and make sure your fuse/circuit is min 125% of that. for example if your light draws 20 amps, use minimum of 25amp circuit. i would personally use a 30 amp fuse/circuit. the battery/power connection and relay fuse is there to protect the line from a short. every sensitive electronic device will have a seperate specific fuse to protect the device itself and not part of the power connection. you never want to go over 75-80% of a circuits maximum. getting close to the maximum will cause heat issues as well as possible blown fuse due to start up power draw. and worse case scenario, melted wires/fire.

Appreciate that.. the emergency lighting I’m adding is anywhere from .25 amps & .50amps Per light. Trying to decide which Aux switch to hook up to

 

[The Car Stereo Company]

Appreciate that.. the emergency lighting I’m adding is anywhere from .25 amps & .50amps Per light. Trying to decide which Aux switch to hook up to

you can use any switch you want. just use a relay if the switch itself doesnt have enough amperage