A fuse rating is normally the 120% of the rated full load current. So, 4 amps times 120% is (4x120%) = 4.8amps
To calculate the fuse rating for a 600 watt appliance on a 220 volt supply, you can use the formula: Fuse rating = (Power/Voltage). In this case, it would be 600 watts / 220 volts, which equals approximately 2.73 amps. Therefore, you would need a 3 amp fuse for the 600 watt appliance on a 220 volt supply.
The fuse rating for a 400-watt appliance can be calculated using the formula: Fuse Rating (Amps) = Power (Watts) / Voltage (Volts). For a standard voltage of 230 volts, the fuse rating would be approximately 1.74 amps, so a 2-amp fuse would typically be suitable. If the appliance operates at 120 volts, the fuse rating would be around 3.33 amps, suggesting a 4-amp fuse would be appropriate. Always check the manufacturer's specifications for the exact fuse rating.
To calculate the minimum fuse rating needed for a 36W bulb on a 12V circuit, divide the wattage by the voltage (36W / 12V = 3A). Therefore, a minimum 3A fuse would be sufficient for a 36W bulb on a 12V circuit.
A standard 3kW immersion heater will require a fuse rating of 13 A. This is because, it draws a current of 12 A.
If the fuse rating is less than the current an appliance needs, the fuse will likely blow or burn out. This is because the fuse is designed to protect the appliance from overheating or catching fire by interrupting the circuit when the current exceeds the fuse rating. It is important to always use a fuse with a rating that matches the current requirements of the appliance.
watts Divided by Volts = amps
A: The VA rating is there 6v/a the power fuse to blow is 6watts. 050a fuse
To calculate the fuse rating for a 600 watt appliance on a 220 volt supply, you can use the formula: Fuse rating = (Power/Voltage). In this case, it would be 600 watts / 220 volts, which equals approximately 2.73 amps. Therefore, you would need a 3 amp fuse for the 600 watt appliance on a 220 volt supply.
It is ok to use a fuse with a higher amperage rating and not ok to use a fuse with a smaller amperage rating why?
The fuse rating for a 400-watt appliance can be calculated using the formula: Fuse Rating (Amps) = Power (Watts) / Voltage (Volts). For a standard voltage of 230 volts, the fuse rating would be approximately 1.74 amps, so a 2-amp fuse would typically be suitable. If the appliance operates at 120 volts, the fuse rating would be around 3.33 amps, suggesting a 4-amp fuse would be appropriate. Always check the manufacturer's specifications for the exact fuse rating.
Using a fuse correctly rated for current but "overrated" for voltage does not present a problem. Current ratings are critical safety issues, and fuses should be replaced with those of the same current rating. But using a fuse with an identical current rating but a higher voltage rating is not a problem. The reason for that lies in what the voltage rating of a fuse is. Fuses are given a voltage rating to state a maximum voltage in a circuit that they are designed to protect. And the voltage rating has nothing to do with the "normal" operation of the fuse. The fuse carries current when it operates normally, but when something happens and excessive current flows, the fusible link heats up and opens. This is where the voltage rating comes into play. It is possible that a fuse can arc through when it fails. It is the voltage rating that stands in the way of this. As long as the voltage rating of a circuit is not beyond the voltage rating of the fuse, that fuse will fail safely when it fails. It is acceptable to use a fuse of an equal current rating but a higher voltage rating when replacing a fuse that has failed.
The current rating is 2A (2 amps).
To calculate the minimum fuse rating needed for a 36W bulb on a 12V circuit, divide the wattage by the voltage (36W / 12V = 3A). Therefore, a minimum 3A fuse would be sufficient for a 36W bulb on a 12V circuit.
A fuse is given a various rating (strength). For instance, a home appliance (washing machine, etc) would usually have a fuse with a 13 amp rating. While a low powered lamp would only merit a 2 or 5 amp fuse rating. It is important to use a fuse of the correct rating in amps for each electrical appliance.
Each fuse has its own rating. It will be marked on the fuse somewhere.
A current rating of a fuse is designed to open a circuit at a specific current flow. This rating is imprinted on the fuse and lets you know what the maximum amount of current the fuse is designed to open at. A fuse is in the circuit to protect the conductor that the current flows through. Never over fuse a conductor's current carrying capacity.
A standard 3kW immersion heater will require a fuse rating of 13 A. This is because, it draws a current of 12 A.