Should you fuse alternator?

Should you fuse alternator?

Fuses are installed to protect wires from an overload, meaning that the draw (amps) from the load (appliance) exceeds the capacity of the wire (the size or gauge). Under this premise, the only way an alternator needs a fuse is if either the battery or the alternator itself experiences a dead short.

Where to put the fuse on an alternator?

Your fuse (placed near to the battery) will break the circuit. If you put the fuse near to the alternator and a short occurs closer to the battery, you’re hosed. Hence why it’s good practice to fuse nearest to the battery as it practical.

How many fuses are in an average car?

But we should point out that there are usually upwards of 40 fuses in the average fuse box in a car these days. That can make replacing a blown alternator fuse slightly more challenging than it used to be.

Can a blown fuse be replaced in a car?

The physical act of replacing a blown alternator fuse is one of simplest auto repair jobs around. Replacing any blown fuse is actually very easy and doesn’t require much skill or technical know-how. But we should point out that there are usually upwards of 40 fuses in the average fuse box in a car these days.

Why does my Alt fuse keep blowing out?

I covered the bare metal under it with rubber to ensure that I wouldn’t ground, then screwed a nut and washer ON TOP of the wire, instead of the normal setup which is nut, wire, nut+washer (broken post).

When to fuse an alternator and a battery?

There is a guide line set by ABYC (American boat and yacht club) that says if the switch is going to be more than 7″ from a power source: Fuse it. The alternator and batteries are a power source. Except the starter. Also recommended was connecting the Alternator output to a battery not through a switch.

What should the fuse be on a 130amp 3G alternator?

In a 130amp 3G the fuse should be a minimum 160amps, preferable 180 or 200amps. As when the stock alternator is loaded way down, it can produce 160amps at about 12.8 volts. This varies from alternator to alternator and is much higher for high output alternators.

How can you tell if your alternator has gone bad?

According to Nationwide, there are a few different ways to find out if you’ve got a dead battery or an alternator gone bad. Without starting the car, you can check the battery gauge on the dashboard. If it’s still sending out a strong charge, the battery is likely not the problem.

Can a loose battery fuse cause a fire?

Main Battery Post Becomes Loose: This can cause a fire, in fact 10,000 or 1000’s of fires happen on Ford products equipped with their 2G alternators, because of this. Since the fire is started by heat in the loose connection, it is the alternator that is producing the power that creates the fire.