Fusible link question

[Pinchecharlie]

I purchased a Madd electric kit for my truck and iam using a junction box at the core support for relays. Iam not to electrical savvy! Anyway the instruction say to use a fusible link in line with the power source to power the relays. My question is can a fusible link be used on its own? I only have to go a few inches from power junction to relay. Kinda dumb I know but I wondered enough to call Madd (Not available as of yet) and thought I'd ask. Seems like a fail safe but didn't know if it had to do with the links length or its relationship with another wire lol! Ism not to proud huh? Thanks just trying to make it as clean as possible.

Just fyi; these Madd electric kits are really awsome and relatively affordable especially if you are like me and not allways confident with electrical wiring. The end

[64shortbox]

Instead of using a fusible link what about using a circuit breaker rated for the same amperage as the fusible link? A circuit breaker is self healing if there is a temporary short etc.

http://www.autozone.com/starting-cha...ker/795100_0_0

[Pinchecharlie]

Well I honestly don't know!? But I'll look into one and if like you say it is able to reset that's better right? But again iam pretty clueless lol. The guy who sold me the stuff is really nice and he will talk with you for hours but if you get lost , well it's hard to get back on track. He said the link needed to be whole and have a length of rated wire attached because of electrical theories I didn't inderstsndvlol! But I get it I think ? The link fails before the circuit right? Only thing is like you said if it fsilsvyhrn you are stuck cutting wire. Thanks for the tip!!!

[chevy_mike]

A fusible link is to protect the whole system. If you have some major short or overloaded draw, it will burn out killing the whole system. Even if you're only going a few inches to a power distribution point, you are still protecting everything that is connected to that point. Now you can use a fusible link or circuit breaker (auto or manual reset type). Not everyone does this and it's likely you will never have a problem but at the same time, many vehicles have been burnt to the ground because of electrical fires.

You want it rated below what the max rating of the input wire, i.e. if your input wire is rated at 30 amps, you want a fusible link/circuit breaker rated at 25 amps. You want it to pop before you burn the main wire.

[luvbowties]

Originally Posted by 64shortbox

Instead of using a fusible link what about using a circuit breaker rated for the same amperage as the fusible link? A circuit breaker is self healing if there is a temporary short etc.

http://www.autozone.com/starting-cha...ker/795100_0_0

...or this one/type if $39 frightens you off?
>>>> http://www.autozone.com/electrical-a...uestid=3223787 <<<<
Sam