What exactly is the difference between a surge protector and a fuse? Can a fuse protect the electronic devices from lightning instead of surge protector?
Last Updated: 22.06.2025 05:00

so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
Upvotes:
He then describes Rainy Season and Lightning.
A circuit breaker is similar, but is resettable.
What does a fuse do?
eight
Why do some men want to have anal sex with women?
I post the exact comment here.
The third is lightning and “how it gets conducted into a home.”
But during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).
Devil’s Third director says panned Wii U game was innovative for its time - Nintendo Everything
He then asserts :
Now when you have a certain ac resistance, then a current flows in a loop.
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
So, the voltage could go up to 500 volts, and the fuse will not open up.
But it can get overloaded, and no longer works.
Once the voltage goes over 0.0650 volts, then this fact can be used to amplify the difference, and turn the circuit breaker off , furthur down the line. Essentially that is what a RCD/GFCI does, it compares the incoming current, to the outgoing current, and if the difference between the two currents is over 5mA, then it trips the circuit breaker.
These are simplified answers to the original question, and does not change anything I wrote above.
“ A surge suppressor is the one which is connected at the input supply so that when there is a sudden change voltage it bypasses thereby protecting the (circuit) and electronic components”
He then describes the function of a fuse.
Rents fall in most U.S. metros since 2023 as demand struggles to keep up with supply - Seeking Alpha
When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
Lightning arrestor is a spark-gap device, and can be installed anywhere. What is important, is that the wire is thick enough to withstand the lightning bolt and conduct the energy away from the building.
What is a good habit and what is bad one?
2024–09–27 [ Mohan Rajaratnam Mohan Rajaratnam ] . Thinks you can get free electricity from nothing : Mohan Rajaratnam's answer to Is it possible to generate free electricity at home using a magnet or other low-cost methods? If so, how does it work?
But… the neutral is now “floating” because of the 1 ohm resistance.
At one ohm, the resistor has a maximum of 1 watt power.
Here is a simplified AC power diagram.
but I think this circuit , shows a few more pieces.
This device then solves the entire problem.
T.J. Oshie, the Caps’ beloved ‘warrior,’ announces his NHL retirement - The Washington Post
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
This is 'the assistant's answer'
So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.
Which genre of novels is most profitable to publish and why?
(Dc diagram shown, AC is similar).
It seems Mohan does not understand the difference between a comment and an Answer.
This is a high voltage low current spike that comes down the line because of the power poles being struck, and the voltage suppressors activating on the primary side of the transformer.
Common sleep aid blocks brain inflammation and tau buildup in Alzheimer’s model - PsyPost
“ A fuse is a device which protects the (circuit) against overload and short circuit.”
These devices are installed between the “hot” and “neutral” and protective ground.
It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.
Milky Way galaxy might not collide with Andromeda after all - Ars Technica
Because the load is inductive, the current lags the voltage.(by a bit).
This is a photo where a lightning bolt took out a home's complete mains distribution box, and a lot of electronic gear as well.
In schematic diagrams this is the symbol for a fuse:
How do scammers communicate? Do they have a specific language or slang?
2024–10–16 [ OO OLAOYE OYEBODE ]
This is where the MOV conducts again, and dissipated the energy.
This is where this question deviates from being a 'generic' question, and becomes more specific.
What is the reason for The Acolyte (2024 series) having poor reception among Star Wars fans?
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
what exactly is a ‘surge’ protector?
Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".
Dejected Joshua Kimmich reacts to Germany’s Nations League defeat - Bavarian Football Works
so, what happens?
[image of Common-mode choke]
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
Edit 2024–10.
At the secondary, it is 1000 times less.)turns ratio). If it gets hit with a 100,000 volt bolt of lightning then the voltage arrestors conduct and clamp the voltage down to line voltage, ( but a small amount leaks down the line). This is the problem.
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
What is lightning?
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
2024–10–14 [Omar Gharbi Omar Gharbi ]
There are three different concepts here that are getting confused.
At least they know the answer if they wanted it.
There is no harm in having the surge suppressor along with the fuse in the circuit. The fuse will not open up until the current melts the link. This will take time, and in the interim, that jolt will get transmitted into the power supplies.
There are two important concepts here.
The MOV will conduct when the voltage exceeds 50% of line voltage.
[old diagram got deleted by accident]
A fuse is a non-resetable over current circuit protector.
the problem then depends on "how fast does the fuse operate?".
Can the fuse protect the electronic devices from lightning instead of a surge protector.
2024–10–10[John johnson John Johnson ]
So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
It also is a device that limits the change in current flow.
And this is the problem alone. Is the power supply in the equipmemt designed with a lightning strike in mind? Some yes, others, no.
This is an electronic circuit designed to clamp voltages so that the Voltage Potential that appears at the outlet is never going to exceed the nominal value.
The bolt then partially travels down the line to your home.
An AC voltage/ current source, and an ac inductive load.
but this device (an Inductor) … impedes the rapid changes in the current.
One is “what exactly is in a ‘surge protector’ ? ”
First Sentence:
For this case there are devices called Metal oxide varistors (MOV).
a photo is worth a thousand words.
(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).
nine
The other is “what does a “fuse” do?”
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
One
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
This one hit behind the barn.
This is the picture of an electronic coil of wire wound around a core of magnetic material.
Barnstars: