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?
12.06.2025 10:31

The other is “what does a “fuse” do?”
It also is a device that limits the change in current flow.
When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.
A circuit breaker is similar, but is resettable.
The bolt then partially travels down the line to your home.
He then describes the function of a fuse.
Cardinals Place Jordan Walker On 10-Day IL, Select Ryan Vilade - MLB Trade Rumors
This is where the MOV conducts again, and dissipated the energy.
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
what exactly is a ‘surge’ protector?
Relativistic jet detected in active galaxy Markarian 110 - Phys.org
Barnstars:
[image of Common-mode choke]
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.
How do I rat my boss out for serial cheating on his wife?
This device then solves the entire problem.
What is lightning?
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
I’m running away I live in Indiana what states near by are safe I’m 12 no comments?
2024–10–16 [ OO OLAOYE OYEBODE ]
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
There are two important concepts here.
[old diagram got deleted by accident]
2024–10–10[John johnson John Johnson ]
a photo is worth a thousand words.
New Research Reveals the Brain Learns Differently Than We Thought - SciTechDaily
This one hit behind the barn.
Edit 2024–10.
eight
Have you ever seen your wife being fucked?
Now when you have a certain ac resistance, then a current flows in a loop.
A fuse is a non-resetable over current circuit protector.
This is the picture of an electronic coil of wire wound around a core of magnetic material.
What do you respect the most about Elon Musk?
the problem then depends on "how fast does the fuse operate?".
“ A fuse is a device which protects the (circuit) against overload and short circuit.”
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.
but this device (an Inductor) … impedes the rapid changes in the current.
But during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).
There are three different concepts here that are getting confused.
What are some effective ways to cope with loss and grief?
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
(Dc diagram shown, AC is similar).
First Sentence:
Little-known cells might be key to human brain’s massive memory - The Washington Post
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.
so, what happens?
Can the fuse protect the electronic devices from lightning instead of a surge protector.
I post the exact comment here.
This is 'the assistant's answer'
At least they know the answer if they wanted it.
So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.
He then describes Rainy Season and Lightning.
In schematic diagrams this is the symbol for a fuse:
This is where this question deviates from being a 'generic' question, and becomes more specific.
Here is a simplified AC power diagram.
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?
2024–10–14 [Omar Gharbi Omar Gharbi ]
One
One is “what exactly is in a ‘surge protector’ ? ”
Because the load is inductive, the current lags the voltage.(by a bit).
What does a fuse do?
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
but I think this circuit , shows a few more pieces.
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
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.
The third is lightning and “how it gets conducted into a home.”
So, the voltage could go up to 500 volts, and the fuse will not open up.
But… the neutral is now “floating” because of the 1 ohm resistance.
(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).
But it can get overloaded, and no longer works.
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.
At one ohm, the resistor has a maximum of 1 watt power.
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.
These devices are installed between the “hot” and “neutral” and protective ground.
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.
The MOV will conduct when the voltage exceeds 50% of line voltage.
An AC voltage/ current source, and an ac inductive load.
nine
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
For this case there are devices called Metal oxide varistors (MOV).
These are simplified answers to the original question, and does not change anything I wrote above.
So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
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.
“ 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”
And this is the problem alone. Is the power supply in the equipmemt designed with a lightning strike in mind? Some yes, others, no.
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".
Upvotes:
It seems Mohan does not understand the difference between a comment and an Answer.
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
He then asserts :