Table of Contents
Are 5 amp fuses still used?
Manufacturers have now standardised plug fuse ratings to be either 3A or 13A. However, 5 Amp fuses are still used in some older equipment and are available to buy.
Is it OK to use a 5 amp fuse instead of 3?
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.
What size amp fuse do I need?
The correct size of fuse to use depends on the amp you are wiring. If your amp has an internal fuse, then your inline car amp fuse should be a bit larger. For instance, if your amp has an internal 20 amp fuse, then you should go for a 25 or 30 amp inline fuse.
Are all 5 amp fuses the same?
All automotive fuses have their amperage written on the top of the fuse. Counterintuitively, amp rating does not necessarily correspond to fuse size. Regular-sized fuses start at . 5A and go all the way up to 40A, while Micro2 fuses range between 5A and 30A.
Can I use a 5A fuse instead of a 10a?
Possibly yes. It is possible to short out a circuit by overdrawing more than 5 Amp by removing the 5 Amp fuse and putting in a 10 Amp fuse.
Are there different types of 5 amp fuses?
A quick look at two types of 5 amp fuse, BS1361 and BS1362.
Can I use a 10 amp fuse in place of a 5 amp?
What happens if you use the wrong 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.
How many watts can a 5 amp fuse take?
Fuse ratings
| 45 AMP | For circuits of more than 13kw (13000 w) |
|---|---|
| 13 AMP | For appliances between 700 and 3000w (3kw) |
| 5 AMP | For lighting circuits. The maximum permissible load of a lighting circuit is 1200w or 12* 100 watt lamps |
| 3 AMP | For appliances up to 700 watts, such as table lamps and alarm clocks |
Can a fuse withstand a 5 AMP draw?
In the most basic answer, no. First, a 5 amp fuse is meant to withstand a 5 amp current draw for an amount of time determined by the type of fuse, fast or slow blow. If the current draw excedes 5 amps (for an amount of time that excedes the fuse’s limit), then the fuse will interrupt the circuit.
Do you have to use the correct fuse rating?
The correct size of the fuse is ultimately dependant on the current rating of the cable. However in most cases we can assume that the manufacturer has fitted the correct size cable and corresponding fuse, in which case the fuse rating recommended by the manufacturer should be used.
What’s the correct fuse size for a re wirable plug?
If it’s a re-wirable type plug and the original fuse size fitted by the manufacturer is not known, the recommended method is to use the 700W rule: For an appliance rated as 700W or less, a 3A fuse should be fitted.
Can a 5 Amp Fuse blow in a 1v circuit?
A fuse in a 1V circuit providing 5 watts of power is carrying 5 amps. Will this cause a 250V 5 amp fuse to blow? In the most basic answer, no. First, a 5 amp fuse is meant to withstand a 5 amp current draw for an amount of time determined by the type of fuse, fast or slow blow.