Logo

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?

10.06.2025 17:45

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?

These devices are installed between the “hot” and “neutral” and protective ground.

He then asserts :

Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.

Michael Kelly Named President of the Naval Academy Athletic Association and Director of Athletics at the Naval Academy - Naval Academy Athletics - Naval Academy Athletics

He then describes the function of a fuse.

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 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.

Why are leftist movements so popular among young people?

At one ohm, the resistor has a maximum of 1 watt power.

OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.

“ 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”

Why do women stubbornly refuse to let men lead, even though they are attracted to the man, and the man both loves and desires them? Why do they get angry and blame the man when he gets fed up and walks away, when it's entirely their own fault?

2024–10–11 [Bobby Sanchez Bobby Sanchez ].

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, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.

Can the existence of past lives be proven without the use of hypnosis or a pendulum to inquire about previous incarnations?

There are three different concepts here that are getting confused.

but I think this circuit , shows a few more pieces.

2024–10–10[John johnson John Johnson ]

Why don't I want to talk to my girlfriend when she loves me a lot? I feel bored.

It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.

what exactly is a ‘surge’ protector?

It seems Mohan does not understand the difference between a comment and an Answer.

Column | Phil Mickelson’s legacy: Helping pro golfers and diminishing pro golf - The Washington Post

Barnstars:

One

Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.

See photos: Miguel Angel Jiménez wins the Principal Charity Classic - The Des Moines Register

This is where this question deviates from being a 'generic' question, and becomes more specific.

The other is “what does a “fuse” do?”

Edit 2024–10.

End of an Era: Landsat 7 Decommissioned After 25 Years of Earth Observation - USGS (.gov)

A circuit breaker is similar, but is resettable.

This is the picture of an electronic coil of wire wound around a core of magnetic material.

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.

Why are Indians so influenced by the Western culture, when the Indian tradition has so much to give?

Now when you have a certain ac resistance, then a current flows in a loop.

What does a fuse do?

When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.

Scientists Stunned by 183-Million-Year-Old Fossil With Intact Skin and Scales - Indian Defence Review

(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).

This device then solves the entire problem.

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.

'No recession bet whatsoever': The stock market isn't pricing in any sort of economic downturn, investment firm says - Business Insider

Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.

An AC voltage/ current source, and an ac inductive load.

A fuse is a non-resetable over current circuit protector.

Why does my cat get anxious during loud noises like thunderstorms or firework displays? Is this a common behavior for cats, and is there a way to help them cope with it?

One is “what exactly is in a ‘surge protector’ ? ”

There are two important concepts here.

2024–10–14 [Omar Gharbi Omar Gharbi ]

Journalism A Go For Belmont Stakes After Saratoga Work - Thoroughbred Daily News

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.

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?

Don't miss the half-lit first quarter moon rise tonight — Here's what to look for - Space

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.

Are there any political parties or groups that have a mix of conservative and liberal beliefs? Why are they not as prominent in the media?

The third is lightning and “how it gets conducted into a home.”

Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".

So, the voltage could go up to 500 volts, and the fuse will not open up.

2024–10–00 [ Ammar Mahdi ] Ammar Mahdi

Upvotes:

But during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).

For this case there are devices called Metal oxide varistors (MOV).

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.

nine

[image of Common-mode choke]

And this is the problem alone. Is the power supply in the equipmemt designed with a lightning strike in mind? Some yes, others, no.

a photo is worth a thousand words.

P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.

Here is a simplified AC power diagram.

This one hit behind the barn.

2024–10–16 [ OO OLAOYE OYEBODE ]

I post the exact comment here.

In schematic diagrams this is the symbol for a fuse:

This is where the MOV conducts again, and dissipated the energy.

but this device (an Inductor) … impedes the rapid changes in the current.

(Dc diagram shown, AC is similar).

So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.

“ A fuse is a device which protects the (circuit) against overload and short circuit.”

What is lightning?

The MOV will conduct when the voltage exceeds 50% of line voltage.

First Sentence:

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.

[old diagram got deleted by accident]

eight

This is 'the assistant's answer'

Because the load is inductive, the current lags the voltage.(by a bit).

The bolt then partially travels down the line to your home.

But… the neutral is now “floating” because of the 1 ohm resistance.

so, what happens?

It also is a device that limits the change in current flow.

But it can get overloaded, and no longer works.

Can the fuse protect the electronic devices from lightning instead of a surge protector.

the problem then depends on "how fast does the fuse operate?".

If the nominal power is 4,000 watts then the current at 230volts is 16 amps.

“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”