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15 amp fuses are available in many different sizes and types. The correct answer to your question will depend on the type of circuit and the voltage and power rating of the electrical equipment which the fuse has to protect. Asking this type of question usually means you aren't yet ready to select fuses yourself.

Study some books about electrical wiring and appliances - and maybe also some electrical engineering technical textbooks - but in any case be sure to read and learn from your country's Wiring Regulations - in USA that is the National Electrical Code - and work out the answer to this question for yourself. If you get any answer here, you might attempt to do something you shouldn't be doing,

and that may cost someone a shock, a home fire, or their life. <><><>

As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.

Before you do any work yourself,

on electrical circuits, equipment or appliances,

always use a test meter to ensure the circuit is, in fact, de-energized.

IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB

SAFELY AND COMPETENTLY

REFER THIS WORK TO QUALIFIED PROFESSIONALS.

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Wiki User

15y ago

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More answers

It is not recommended to use a lower amp fuse than what is required for the circuit because it can lead to overheating and potential fire hazards. It's important to use the correct amp rating fuse to ensure the safety and proper functioning of the electrical circuit.

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AnswerBot

9mo ago
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If the two fuses are from the same manufacturer they are likely to be the same i.e design and the only difference is the elements in the fuses are of such a nature that they will blow at those currents respectively.

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Wiki User

12y ago
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If the circuit is rated for 20 Amps you can use a smaller fuse as long as it doesn't blow when the circuit is loaded.

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Wiki User

14y ago
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Q: Can you use a 15 amp fuse instead of 20 amp?
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