Can I replace a 3amp fuse with 5 amp?

If they have simply run out of 3amp then of course not. IMHO you must investigate why the device is blowing the three amp fuse if indeed the 3 amp fuse is the recommended value, it may have a fault. Simply changing it for a 5 because it is bothersome is foolhardy, and certainly not best practice.

Can you put 13amp fuse 3 amp plug?





yes – but we are only protecting against a dead short at the applience, not normally some mild overload – a dead short takes out any fuse or none, overload is managed at the appliance end of the cable – which is the EU wide approach with non-fused plugs.

What uses 3amp fuse?

Plugs 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 you put a higher amp fuse in a plug?

Do not replace a blown fuse with one that has a higher amperage rating. The fuse has a specific amperage rating because it is intended to be the weak link in the circuit to protect the electrical components. A blown fuse indicates excessive current has entered the circuit.

What uses 5amp fuse?

5 amp sockets are used on the lighting circuit, meaning they are switched on and off with the light switches in the room, rather than being used like regular plug sockets. They are designed for appliances that take less than a 5 amp current, for example floor lamps, table lamps and fans.

What happens if you use 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.

Is a 3amp plug different to a 13amp plug?

A 3A fuse is the safest to use and should be used for appliances at 700w or less. Appliances rated above 700w should use a 13A fuse. Be extra cautious when using a 13A fuse and try using a 3A fuse if and when it’s possible.

Can I use 13A fuse for 3A?

The 13A fuse is on the plug. The power rating is so low that we can quickly see that the fuse is too high and needs to be changed to a 3A one.

Can I use 13A fuse instead of 3A fuse?

BS1363 has standardised on just two preferred fuse ratings, 3A and 13A, however any fuse rating up to 13A can still be used.

What happens if I put the wrong fuse in a plug?



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. Rather than risk blowing the circuit, take the car to a repair shop to determine what is causing the fuse to repeatedly blow.

What happens if you put a bigger amp fuse?

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. You rate the fuse or breaker based on the lowest current rating of all the devices and wires in the circuit .

Can I replace a 2 amp fuse with a 3 amp fuse?

3 Amp should be okay. The main purpose of the fuse is to prevent burning wires. Radio Shack has the fuse in a higher voltage rating, but it won’t cause a problem.

Can I replace a 2.5 A fuse with a 3a fuse?



I don’t think the difference would cause any significant issue, as any hard failure would blow the 3 Amp fuse just as fast as it would a 2.5 Amp fuse, for most practical purposes. In higher powered or more critical situations, one would be wise to be very careful about safety concerns.

Can you put a 3amp fuse in a 1 amp plug?

100 Watts divided by 240 Volts equals 0.42 amps +10% which equals 0.46 Amps. So from this calculation the ideal fuse would be 1 amp. However most manufacturers put a 3 amp fuse in the plug as standard.

Can you use a 40 amp fuse instead of 30?

It is okay in the sense that it will work, but not okay if you have an over-current just below 40 Amp and your equipment catches on fire.

What are 40 amp fuses used for?

Usually each DC circuit also has a lower rated fuse, and the main power fuses (40A in your case) are to protect main 12V feed wiring. You never want anything connected directly to the battery, everything should go through a fuse.

Can I replace a 30 amp fuse with a 20-amp fuse?



Replacing a 20-amp fuse with one rated at 30 Amp is dangerous because it may not blow soon enough and damage an electrical component or start a fire.

What is a 40 amp breaker used for?

The 15-amp and 20-amp breakers are used for baseboard heating, the 30-amp breakers are used for water heating, the 40- and 50-amp breakers are used for electric ranges, and the 70-amp breakers are used for air conditioning.

Is a double 30 amp breaker the same as a 60 amp breaker?

A main breaker is the same as any double breaker in the box, except that it supplies power to each busbar. The answer is no if you want to draw 60 Amps off a 30 Amp double breaker.

Can I replace a 40 amp breaker with a 50 amp?

In general, no. Installing a 50A breaker on wiring only designed to support 40A is dangerous and can result in a house fire. 40A circuits need #8 copper wire, whereas 50A circuits need #6 copper.