How do I know what size fuse wire to use?
One common misconception about choosing the correct fuse size is that it’s dependent on the load of the circuit. Actually, the load of the circuit should have nothing to do with choosing a fuse size. The fuse size should be based on the SMALLEST wire (largest gage number) in the circuit.
What size fuse do I need for 18 gauge wire?
18AWG is rated for a max of 20 amps, so your 10 amp fuse will be fine.
What size fuse do I need for a 1500 watt amp?
150 Amp
A 2500 watt uses a 250 Amp fuse, while a 1500 watt uses a 150 Amp fuse.
What size fuse 12 gauge wire?
| Wire Gauge | Recommended Maximum Fuse Size |
|---|---|
| 8 awg | 50 amps |
| 10 awg | 30 amps |
| 12 awg | 20 amps |
| 14 awg | 15 amps |
How do I choose a fuse wire?
Make sure to select a fuse that has a rated voltage higher than the voltage of the circuit. The rated voltage of a fuse is the maximum voltage at which the fuse can safely interrupt an abnormal current.
How far can I run 12 2 wire?
The total circuit would be about 60 -70 feet in length. It would only be supplying about 5 outlets and one light. It would be a light load, running small things, no heaters or med/large equipment. #12 provides reasonable performance up to about 100′ with general loads like you describe.
What size fuse do I need for 16 gauge wire?
| Wire Gauge | Recommended Maximum Fuse Size |
|---|---|
| 10 awg | 30 amps |
| 12 awg | 20 amps |
| 14 awg | 15 amps |
| 16 awg | 7.5 amps |
What size fuse do I need for a cigarette lighter?
In most cases, cigarette lighter circuits use 15 amp fuses, but you can check the fuse box in your vehicle to be sure. You’ll then want to check the device you’re trying to plug in to see how much amperage it draws.
Can a fuse be too big?
What happens if the fuse size is too big? One should consult an expert or an electrician on the proper size of wire that must be used in a given fuse. Wires too small or too large have negative effects in the whole electrical system. When a wire is too small compared to the current passing through it, it can melt.
How to calculate the size of a fuse?
To calculate the right fuse size in this example, you can either: 1 Use our calculator. Fill out our calculator at the top of the page and it will provide a recommended fuse size based on… 2 Calculate fuse size following NEC guidelines. This is the hardest way to size a fuse. Consult the NEC and its guidelines… More
What is the function of a fuse wire?
The main function of a fuse is to protect your wiring, but in order to do so, you’ll have to get the right fuse wire size from the start, too low and it’ll blow, too high and you’ll end up doing damage to the whole circuit!
How big of a fuse do I need for renogy?
Doing so, you see that Renogy recommends using a 30A fuse from controller to battery. Because it’s recommended by the manufacturer, that’s the size you’ll use. Easy! 2. Calculate the Fuse Size Yourself
How big of a fuse do I need for a navigation light?
• Marine LED Navigation Light – 112.5 Degree Boat Nav (1 pair: green & red) = don’t require a fuse. • 12v 10ah lithium batteries (2). But my 4-pin (12v, 30a) rocker switches suggest 20a fuses. All my wire gauges are 22AWG.
https://www.youtube.com/watch?v=2P6YZOKSjok