# Quick Answer: How Many Watts Can A 5 Amp Fuse Take?

## Can I use a 2 amp fuse instead of 1 amp?

Originally Answered: Can I replace a fuse with a lower amp.

Yes of course you can, that’s no problem.

Of course, the fuse will blow sooner and maybe immediatley because the circuit is designed to pull more current than the fuse can handle, but that won’t do any actual harm… you just won’t be able to use the device..

## How do I choose a fuse?

In order to select the right amperage of the fuse, you first need to know the full-load steady-state current of the circuit at an ambient temperature of 25º C (68º F). Once the current value is determined, then a fuse rating should be selected as to be 135% of this value (taken to the next standard value).

## Can I put a 3 amp fuse in a 10 amp plug?

The 13A fuse in place of a 10A fuse wouldn’t directly cause any problem – but then, if there’s a problem with the appliance you’re using, or if you plug in too many things and the current goes over 10A but under 13A, then under the new fuse the extension lead will keep working whereas the old fuse would have blown.

## How do I know what size fuse to use?

Find the size of fuse by multiplying the amps required by the device (2) by 1.5. 2×1.25 = 2.5 then we will round up to the nearest fuse size (in multiples of 5 amps) which would call for a 5 amp fuse. Cross Reference that fuse size to verify that it’s below the Maximum fuse size called out by this chart.

## What is a 5 amp fuse used for?

Domestic Appliances Fuse Ratings Coffee maker – 5 amp.

## How do I know what amp fuse to use?

Fuse rating = (watts/volts) x 1.25 Say the calculated fuse rating is 2.2679 amps, use a 3 amp fuse. Say the calculated fuse rating is 4.9431 amps, use a 5 amp fuse.

## Can I use a 10 amp fuse instead of a 5 amp?

Possibly yes. What ever is wired into that 5 amp slot is rated for a max of 5 amps, overdrawing more than 5 amps by removing the 5 amp fuse and putting in a 10 amp fuse can possibly short out a circuit.

## What happens if you use the wrong amp fuse?

Fuses are present to protect the components of the electrical system. Rather than destroying the circuit when there is a surge of power, the fuse blows to protect it. … If you use a fuse with the wrong amperage, the fuse won’t blow as intended, damaging the circuit and resulting in a much larger repair bill.

## What size fuse do I need for a 1200 watt amp?

You should use at least a 100A fuse. The fuse at the batt. is to protect the power wire.

## Can I replace a 5 amp fuse with a 3 amp?

If so, yes, you can replace a 3A fuse with a 5A fuse. But consider this. A 3A fuse was used for a reason. If so, yes, you can replace a 3A fuse with a 5A fuse.

## What appliances need a 5 fuse?

Most home appliances do not require more than 5 amps of electrical ‘draw’. However hairdryers are a notable exception. Hairdryers which have a rating of more than 1200 watts will need a fuse larger than 5 amps.

## What amp fuse do I need for LED lights?

75mm is good for about 7.5 amps max. I generally like to have at least 100% extra rating so a 3 amp fuse max is what i would use. This should be plenty for 4 leds. If you have working leds but blow a 10A fuse i think your wiring needs checking and you will probably find your fuse is directly across the battery.

## How much current can a 13 amp fuse take?

BS 1362 Fuse Operation Characteristics In fact a 13A fuse will allow a current of 20A to pass indefinitely without blowing.

## How many watts can a 3 amp fuse take?

700 wattsPlugs for appliances rated up to about 700 watts should have a 3-amp fuse (coloured red). For example: 3A Fuse – Table lamp, standard lamp, television, video, computer, mixer, blender, fridge, freezer, power drill, jig saw, soldering iron.

## Can I use a 3 amp fuse instead of a 2.5 amp?

Yup. The fuse is there to protect the wiring and 3 amp is well within the supply wire’s capability. Re: Radio calls for a 2.5 amp fuse.

## Is using a higher amp fuse bad?

In general, NO. Replacing a fuse with a higher-amp fuse is a very bad idea and can lead to fires. Fuses (and circuit breakers) are rated such that they blow or trip before any part of the circuit gets to a dangerous current. … Fix the underlying problem, and you won’t have any more blown fuses.

## What happens if you put a lower amp fuse?

Do not use a fuse with a lower rating– don’t put a 20 amp fues in a 30 amp circuit–because it probably will blow prematurely. Conversely replacing a 20-amp fuse with one rated at 30 amps is dangerous because it may not blow soon enough and damage an electrical component or start a wiring fire.

## Can you use 13a fuse instead 3a?

For an appliance rated as 700W or less, a 3A fuse should be fitted. For appliances above 700W, a 13A fuse should be fitted. … BS1363 has standardised on just two preferred fuse ratings, 3A and 13A, however any fuse rating up to 13A can still be used.