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The main reason why is that it would be very deceptive to consumers. For example. a 120v circuit that draws one amp; might be able to be converted to 240v that would only draw 1/2 amp. At 480v, that same circuit would only draw 1/4 amp, so you would need to be able to figure out what amperage you need at 480v. Now there is also more to understand with this. A 480v ac system consists of three phases, the most common is 3 phases of 277v. If you measured one phase to ground you would read 277, if you measured phase to phase, you would read 480v. There are also other varaitions including 240v to ground and 480 phase to phase. Depending on the tap off of the transformer you might actually be able to use a 250v fuse on each phase. Since each phase is fused separately, I can guarantee you will never find one that reads 480v to ground. If none of this makes sense, than you should go to the store and purchase the 480v fuse, or call an electrician.
Fuses have a small connecting link in them that melts in response to the current. Ratings below 32 volts can use almost any type of metal link in air, and it will safely interrupt the circuit. As the voltage rating goes higher, special exotic properties of metals and filler materials have to be used to safely stop the current. If the fuses does not have the correct properties to stop the current arc, the fuse can explode or become a conductor feeding a short circuit! This could cause switchboard failure or personnal inuries.
What else can I help you with?
250 kav generator produce amp?
A 250 kAV generator produces 250,000 AV, which is the product of ampere and volt. If the same generator operates at 400V, for example, it will generate 250,000AV / 400V = 625A.
What is 250 times 8?
250 x 8 = 2,000
How many m are in 250 mm?
TWO POSSIBLE ANSWERS: 1. 250 / 1000 = 0.25 METER 2. TWO (2) M'S
How many letters is sms limited to?
250 characters in total.
What does 15a 250vac mean?
Oh, dude, 15A 250VAC means the device can handle up to 15 amps of current at 250 volts alternating current. So, like, if you're plugging something in, just make sure it doesn't draw more than 15 amps, or you might blow a fuse and be left in the dark. But hey, who needs electricity anyway, right?
Can you use 250 volt fuse in place of 600 volt fuse on a 277 volt system in a in line fuse holder?
No, it is not safe to use a 250 volt fuse in place of a 600 volt fuse in a 277 volt system. The voltage rating of the fuse should always be equal to or greater than the voltage of the circuit it is protecting to prevent potential hazards such as arcing or fires. Using a lower voltage fuse could result in the fuse failing to blow properly and may lead to dangerous conditions.
What circuit breaker to install for 10 amp 250 volt circuit?
For a 10 amp, 250 volt circuit, you should install a circuit breaker rated for at least 10 amps and 250 volts. A common option would be a single-pole, 10 amp circuit breaker designed for 240-250 volt applications. Be sure to check the specifications and compatibility with your specific electrical panel.
Is a fuse rated 8 volt 25 amps equal to a 8 volt 250 mp fuse?
No, a 250-Amp fuse would be much larger than a 25-amp fuse. A fuse is generally designed to have a thermal runaway and melt the connection when there is too much current for too long.
Will it work if you replace a 1.25 amp 125 volt fuse with a 1 amp 250 volt fuse?
Yes you can do that as long as it will fit in the fuseholder. It is acceptable to replace a lower Voltage Rated fuse with a higher but NEVER replace a higher with a lower. There are several things to consider when replacing a fuse: 1) The minimum voltage rating of the fuse is equal to or higher than the voltage of the circuit you are placing it in 2) The Amperage rating of the fuse does not exceed the capacity of the circuit you are trying to protect. Always replace a fuse with one that has the same amperage rating. 3) The interrupting rating of the fuse is sufficent for the capacity of the circuit supplying the fuse. If replacing a fuse always use one with an interrupting capacity equal to or greater than the fuse you are replacing.
Can you replace a 7 amp 125 volt fuse with a 6 amp 125 volt fuse?
I think in most applications the difference between 6.3 amps and 7 amps is meaningless. However, if your equipment calls for 6.3 amp protection, 7 amps may allow your equipment to burn up before the fuse blows.
Can a 250 volt fuse be used in a 240 volt air conditioner unit and how are they properly installed?
It is generally safe to use a 250 volt fuse in a 240 volt air conditioner unit. To properly install the fuse, make sure the power to the unit is turned off, remove the old fuse, replace it with the new one of the same size and rating, and then turn the power back on. Verify that the unit is functioning properly before regular use.
Can you sub a 250 volt 1.5 amp fuse in place of a 125 volt 3 amp fuse?
Yes, you can substitute a 250 volt fuse in place of a 125 volt fuse. You just can't go the other way around. As far as 1.5 amperes in place of 3 amperes, well, you've got a problem there because the fuse will blow at about 1.5 amperes instead of 3 amperes, so the intended load will not be met. All of this, of course, assumes that the physical size of the fuse is the same. Bottom line is never substitute fuses.
Can you use 600 volt fuses in place of 250 volt fuses on a 208 Volt System?
Answer for USA, Canada and countries running a 60 Hz supply service.If they fit, which I doubt, yes, you can use 600 volt fuses in place of 250 volt fuses so long as the amp rating is correct.YOU CANNOT USE 250 VOLT FUSES IN PLACE OF 600 VOLT FUSES !!!You can use a fuse with a higher volt rating but not a smaller volt rating than the voltage applied to the circuit.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.
What happens if you replace a 32 volt fuse with 250 volts?
In simple terms, whenever a fuse 'blows', the resulting gap in the melted element must be great enough to prevent the voltage across that gap from maintaining or re-igniting the resulting arc. So, in addition to their current rating, fuses are also rated according to the voltage at which they are designed to operate.So, if you were to use a 32-V fuse in a 250-V circuit, it is likely that it will not be able to extinguish the resulting arc when the fuse operates, and the circuit will not be protected properly.
Why 250 ohm resistance using for transmitter calibration?
In this situation, to calibrate a transmitter you need a power circuit and communicator circuit. The Hart communicator used in the calibration process is connected to the power source circuit in parallel. The power source circuit is the one that has ammeter, 250 Ohm resistor, and power source all connected in series. As the transmitter sends output mA, it creates volt drop across the 250 Ohm resister. Let's say the volt drop across the resistor was 1 Volt. Now, back to the Hart communicator. It is a load, meaning there will be a volt drop across the Hart communicator. Since it is in parallel with the power circuit, it is also parallel with the resistor. So, the 1 volt drop across the 250 Ohm resistor will also make 1 volt drop across the Hart communicator. Technically speaking, the 1 volt drop across the Hart communicator is only true if its resistor is also 250 Ohm. However, it does NOT matter what voltage drop is in the Hart communcator. It only sees the "relative" voltage drop changes to measure the changes in transmitter outputs.
What fuse would you use in a circuit with a 1kw load and a 250 volts supply show calculation?
5 amps
30 amps on a 250 volt outlet can handle how many watts?
A 30 amp circuit on a 250 volt service could handle up to 7500 watts. That's if it's actually 250 volts coming in. You should check that with your meter.
