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look at the power consumption of the device in Watts (W)
Then divide by the voltage (V)
The result is the current drawn by the device in amps (A)
so if a device draws 200 Watts the product of Watts (W) divided by power (V) is 16.6 amps.
So you would use a 20 Amp fuse AND the cable would need to have a large enough cross sectional area to carry the current without overheating and causing a fire. Also look into the placement of the fuse as it should be as close to the battery as you can.
Just remember that the fuse is to protect the cable from catching fire and NOT to protect the electronic device.
good luck and maybe get it looked at my an auto electrician for a drink once its done for safetys sake. Afew beers would be cheaper than a fire extinguisher.
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∙ 13y ago
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Does a cigarette lighter work on a fuse?
no it doesn't The circuit is protected by a fuse.
CAn you replace a 13 amp fuse with 15 amp fuse?
It will work but will not protect the circuit as it should. By design, the circuit should have a maximum of 13 amps, but with the larger fuse in place, currents of 14 and 15 amps can occur without blowing the fuse, and this flow could damage parts of the circuit. It would be much safer to use a lower value, which would lead to more blowing of the fuse but no damage to the circuit being protected.
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a fuse main purpose is to quickly disconnect a short circuit. when the current passing through it exceed its rated value
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Only if the fuse protects the circuit that the wipers are on. If replacing the fuse does not solve the problem, check the replacement fuse; if it has also blown then you have a short circuit on that circuit and need to consult an auto electrician
What are the function of consumer box?
what is a circuit breaker / fuse current rate value for lamp and fan load circuit
What are the functions of a consumer box?
what is a circuit breaker / fuse current rate value for lamp and fan load circuit
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There is no fuse. Headlights work on a circuit breaker.
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What a device that protects an electric circuit from too much current?
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Why don't my Power windows work?
The fuse is bad or there is loose connection in the circuit.
Why is an electrical fuse burnt?
An electrical fuse would look "burnt" if something in the circuit it is protecting has developed a fault which caused a current overload situation to occur.In other words, something caused the current flowing through the fuse to exceed its normal rated maximum current value so much that the fuse did what it was designed to do!In this situation, if a new fuse of the same value immediately blows, do not attempt to replace it by a fuse having a higher rated current value. The correct procedure is to find out what went wrong in the circuit that the fuse is protecting and then get the problem fixed so that the equipment works properly again without blowing a new fuse having the same rated current value as the original fuse which looked burnt.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 JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.
