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: 26.06.2025 02:17
These devices are installed between the “hot” and “neutral” and protective ground.
What does a fuse do?
There are three different concepts here that are getting confused.
Why mosquito season will have less bite this year in Southern California - Los Angeles Daily News
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
These are simplified answers to the original question, and does not change anything I wrote above.
At least they know the answer if they wanted it.
Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
How can fashion design be used to make a political statement in popular culture, and society?
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.
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?
The other is “what does a “fuse” do?”
"Sixth sense" found in animals, changing science's view of sound - Earth.com
Can the fuse protect the electronic devices from lightning instead of a surge protector.
There are two important concepts here.
In schematic diagrams this is the symbol for a fuse:
Why do liberals have a problem with masculine men like Andrew Tate?
2024–10–14 [Omar Gharbi Omar Gharbi ]
It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.
“ A fuse is a device which protects the (circuit) against overload and short circuit.”
It also is a device that limits the change in current flow.
Edit 2024–10.
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
Mountaineers Defeat Kentucky to Advance to Super Regionals - West Virginia University Athletics
This device then solves the entire problem.
This is where the MOV conducts again, and dissipated the energy.
nine
Which Ayurvedic ritual, dry brushing, oil pulling, or facial massage, do you want to try first?
When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.
First Sentence:
(Dc diagram shown, AC is similar).
New map shows Bay Area locations with highest risk of ember-driven wildfires - East Bay Times
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
This one hit behind the barn.
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.
A Common Stimulant Could Hold the Key to Preventing Sudden Infant Death Syndrome - SciTechDaily
Now when you have a certain ac resistance, then a current flows in a loop.
He then describes the function of a fuse.
And this is the problem alone. Is the power supply in the equipmemt designed with a lightning strike in mind? Some yes, others, no.
Will Canadians still buy American products?
What is lightning?
Because the load is inductive, the current lags the voltage.(by a bit).
what exactly is a ‘surge’ protector?
U.S. Employers Are Shedding Jobs as DOGE Cuts Deep - Barron's
“ 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”
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.
United Switches Off Starlink Internet on Regional Jets After Static Problem - WSJ
Upvotes:
This is 'the assistant's answer'
A circuit breaker is similar, but is resettable.
My husband asked me why do I keep on complaining about him cheating. Why don't I just leave?
He then describes Rainy Season and Lightning.
[old diagram got deleted by accident]
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.
a photo is worth a thousand words.
Here is a simplified AC power diagram.
[image of Common-mode choke]
eight
For this case there are devices called Metal oxide varistors (MOV).
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.
So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
I post the exact comment here.
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.
One
But it can get overloaded, and no longer works.
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
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.
Barnstars:
One is “what exactly is in a ‘surge protector’ ? ”
An AC voltage/ current source, and an ac inductive load.
At one ohm, the resistor has a maximum of 1 watt power.
So, the voltage could go up to 500 volts, and the fuse will not open up.
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).
The MOV will conduct when the voltage exceeds 50% of line voltage.
He then asserts :
This is where this question deviates from being a 'generic' question, and becomes more specific.
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.
The third is lightning and “how it gets conducted into a home.”
but this device (an Inductor) … impedes the rapid changes in the current.
It seems Mohan does not understand the difference between a comment and an Answer.
2024–10–10[John johnson John Johnson ]
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
2024–10–16 [ OO OLAOYE OYEBODE ]
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.
so, what happens?
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
but I think this circuit , shows a few more pieces.
the problem then depends on "how fast does the fuse operate?".
But… the neutral is now “floating” because of the 1 ohm resistance.
But during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).