The recommended amperage for a fuse to be used with a device that requires a 2.5A fuse is 3A.
The recommended amperage for a fuse to use with a device that requires a 2.5 amp fuse is 3 amps.
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?
Darling, the amperage of a fuse isn't determined by its voltage rating. You need to check the markings on the fuse itself to find out its amperage. Don't go playing guessing games with electricity, honey. Stay safe and read the labels.
No, a fuse of a higher amperage rating will not usually have a higher melting point link. The higher amperage fuse will use a wider link or a link of larger diameter.
Technically, you don't measure amperage ACROSS a fuse, you measure current THROUGH a fuse, and the units of measure are amperage. If you want to measure the current though a fuse on a single device, say a TV, or computer, you can use a multi-meter. You will need to 'redirect' all the current so it goes through the multi-meter. ie: ----|fuse|---|device|--- would be rewired to be: ----|fuse|-----|black probe|---|multi-meter|---|red probe|-----|device|------ If you want to measure the current through a larger fuse, like the main fuse in your house, you'll need a current clamp. This is a clamp that you can put on ONE of the incoming power wires. It measures the magnetic field generated by the current. This is the much easier way since you don't have to do any re-wiring to redirect the current, but costs more money. ----|fuse|---@@---|device|--- [the @@ is the current clamp, note that it doesn't matter where the current clamp is placed, so long as it's only around ONE wire] Whatever you do, be careful, electricity is dangerous.
The maximum amperage capacity of a 30 amp fuse box is 30 amps.
Generally speaking, you need to account for any variance in electrical output. There are a lot of factors that can cause a fluctuation in electrical amperage. You wouldn't want to set the fuse too low or it would blow needlessly, but you also don't want to set the fuse too high, or a dangerous short will not be interrupted. A power source/device can produce/draw more amperage while damaged than in normal operation. A 4.33 amp device might not run at 5 amp while working, but while damaged could exceed that dramatically. When looking at the reason for having a fuse, it provides two things: 1) help protect a working device from having too much amperage forced into it from a damaged power source 2) help protect the power source from having too much amperage draw from it by a damaged device.
A fuse is a circuit safety device. Asking this question must mean that the fuse has blown. It has blown for a reason. The reason has to be found before a new fuse is installed. If the reason has been found and corrected then the fuse that the manufacturer recommended should be re installed. It is your option to use a larger fuse that what is recommended. On a fault condition by not limiting the current to a certain amperage there is the chance that more damage to that circuit's components will occur and irreparable damage to the TV could make it useless.
Using a 25 amp fuse in a slot rated for 20 amps is not recommended. The higher amperage of the 25 amp fuse can allow excess current to flow through the circuit, potentially leading to overheating, damage to wiring, or even fire hazards. It's best to use a fuse that matches the rated amperage of the circuit to ensure safety and proper functioning.
It is NEVER a good idea to use a higher value fuse. The reason for the 10 Amp fuse is that it blows at 10 amps which the wire and device being protected is designed to handle. If you substitute 15 amps and that amount of current flows in your device, it may destroy the device and other things in the path of the current.
Because then it wouldn't 'blow' at the prescribed amperage. -A fuse is made with very fine tolerance wire to melt at an EXACT amperage.
A fuse is replaceable and comes in many different amperage ratings and iterupt types.