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?

Last Updated: 19.06.2025 05:25

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?

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

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

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

Why is the concept of pumping water uphill not commonly used as a source of electricity generation, similar to pumped-hydro systems?

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

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

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

Fog of trade war hangs over economy, but the Fed still has to make a forecast. Here’s what it’s faces. - MarketWatch

This device then solves the entire problem.

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

2024–10–16 [ OO OLAOYE OYEBODE ]

Scientists Solve 50-Year Mystery of Strange Zone Deep Inside Earth - SciTechDaily

2024–10–14 [Omar Gharbi Omar Gharbi ]

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?".

Appendix Cancer Rates Climb Among Millennials and Gen X - Newser

This one hit behind the barn.

First Sentence:

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.

4 ways the Desmond Bane trade could affect the Celtics - Boston.com

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

So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.

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

Android 16 bug is turning Pixel navigation into a nightmare - Android Central

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

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

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

Has your wife or girlfriend ever been felt up in public by a stranger?

This is 'the assistant's answer'

2024–10–11 [Victor Olarewsju Victor Olarewaju ]

a photo is worth a thousand words.

Has anyone experienced an out of the body experience, as a child, years before you had ever heard the term or understood the implications?

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

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

One

Why do people mourn when their leaders lose elections? Is it common for people to cry over events that are out of their control?

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.

A circuit breaker is similar, but is resettable.

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

Brian Wilson’s Friend Remembers First Night “Pop Genius Turned Up At The Door For A Pizza” - Deadline

Upvotes:

2024–10–10[John johnson John Johnson ]

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

Why is social media so anti-fee speech, and have they become total BS?

These are simplified answers to the original question, and does not change anything I wrote above.

so, what happens?

I post the exact comment here.

This email app is Gmail on steroids, and I can't recommend it enough - Android Police

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

2024–10–00 [ Ammar Mahdi ] Ammar Mahdi

Here is a simplified AC power diagram.

Barnstars:

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

What is lightning?

[image of Common-mode choke]

(Dc diagram shown, AC is similar).

The other is “what does a “fuse” do?”

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

He then asserts :

He then describes Rainy Season and Lightning.

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

eight

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

[old diagram got deleted by accident]

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

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

But it can get overloaded, and no longer works.

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.

Edit 2024–10.

What does a fuse do?

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

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.

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.

There are two important concepts here.

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

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

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.

nine

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?".

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

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

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

There are three different concepts here that are getting confused.

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

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

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?

what exactly is a ‘surge’ protector?

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

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.

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

“ 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”

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

He then describes the function of a fuse.

In schematic diagrams this is the symbol for a fuse: