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 01:05

OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
First Sentence:
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
What is your review of viloi.com? (viloi.com review).
At least they know the answer if they wanted it.
One
These are simplified answers to the original question, and does not change anything I wrote above.
What do you say after "Hi" when chatting?
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
“ 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 asserts :
Have you ever had a scary dream about a loved one or friend soon after their death?
Because the load is inductive, the current lags the voltage.(by a bit).
the problem then depends on "how fast does the fuse operate?".
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
What great song was "ruined" once you really listened to the lyrics?
This is 'the assistant's answer'
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
So, the voltage could go up to 500 volts, and the fuse will not open up.
“ A fuse is a device which protects the (circuit) against overload and short circuit.”
This device then solves the entire problem.
There are three different concepts here that are getting confused.
GTA Online Money Fronts Update Download Goes Live Early - RockstarINTEL
This is where this question deviates from being a 'generic' question, and becomes more specific.
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.
This one hit behind the barn.
Trump Plans Biofuel Quota Boost, Seeks to Crimp Imports - Bloomberg
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
what exactly is a ‘surge’ protector?
But during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).
Autism and ADHD have distinct brain connectivity signatures, study finds - Medical Xpress
Barnstars:
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
A circuit breaker is similar, but is resettable.
How can you know if they are your twin flame and not limerence or obsession?
What is lightning?
so, what happens?
He then describes the function of a fuse.
Is there a possibility that we are living in a simulation and that there is a concept of rebirth?
but I think this circuit , shows a few more pieces.
a photo is worth a thousand words.
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
Your Android phone just got a major feature upgrade for free - including these Pixel models - ZDNET
It also is a device that limits the change in current flow.
Can the fuse protect the electronic devices from lightning instead of a surge protector.
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.
There are two important concepts here.
Here is a simplified AC power diagram.
But it can get overloaded, and no longer works.
This is the picture of an electronic coil of wire wound around a core of magnetic material.
A fuse is a non-resetable over current circuit protector.
The other is “what does a “fuse” do?”
Astronomers discover most powerful cosmic explosions since the Big Bang - Space
One is “what exactly is in a ‘surge protector’ ? ”
2024–10–16 [ OO OLAOYE OYEBODE ]
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
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.
He then describes Rainy Season and Lightning.
but this device (an Inductor) … impedes the rapid changes in the current.
eight
I post the exact comment here.
When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.
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.
The MOV will conduct when the voltage exceeds 50% of line voltage.
What does a fuse do?
Upvotes:
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
But… the neutral is now “floating” because of the 1 ohm resistance.
These devices are installed between the “hot” and “neutral” and protective ground.
So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
2024–10–10[John johnson John Johnson ]
nine
The bolt then partially travels down the line to your home.
For this case there are devices called Metal oxide varistors (MOV).
In schematic diagrams this is the symbol for a fuse:
Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".
It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.
An AC voltage/ current source, and an ac inductive load.
The third is lightning and “how it gets conducted into a home.”
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?
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 a photo where a lightning bolt took out a home's complete mains distribution box, and a lot of electronic gear as well.
So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.
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.
[old diagram got deleted by accident]
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.
Edit 2024–10.
Now when you have a certain ac resistance, then a current flows in a loop.
This is where the MOV conducts again, and dissipated the energy.
(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).
[image of Common-mode choke]
(Dc diagram shown, AC is similar).
It seems Mohan does not understand the difference between a comment and an Answer.
2024–10–14 [Omar Gharbi Omar Gharbi ]
At one ohm, the resistor has a maximum of 1 watt power.
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”