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: 25.06.2025 15:19

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?

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

Here is a simplified AC power diagram.

Marijuana Legalization Is Putting 'Pressure' On Alcohol Industry, CEO Of Jack Daniel's Parent Company Says Amid Profit Losses - Marijuana Moment

There are two important concepts here.

Barnstars:

First Sentence:

Why are AI Code Assistant and "multimodal AI" experiencing significant growth, indicating a rising interest in advanced AI tools?

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

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.

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

There’s a simple solution to the Shemar Stewart impasse with the Bengals - NBC Sports

[old diagram got deleted by accident]

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

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

What is the best sunscreen available for summers? My skin is oily.

He then asserts :

This is 'the assistant's answer'

[image of Common-mode choke]

Logitech’s new iPad case has a compact removable wireless keyboard - The Verge

At least they know the answer if they wanted it.

eight

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

What are some creepy bestiality-promoting questions obviously asked for sexual gratification?

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

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

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

I dreamt my mother had died and I cried so much in my dream. What does it mean?

2024–10–10[John johnson John Johnson ]

2024–10–16 [ OO OLAOYE OYEBODE ]

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.

RBC Canadian Open Odds, Picks, Predictions: Best Bets, Props, OAD - Lineups

I post the exact comment here.

A circuit breaker is similar, but is resettable.

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.

Acting NASA Administrator Janet Petro June 6, 2025 - NASA Watch

so, what happens?

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?

Drinking coffee could help you age better, according to this Harvard study. - Stewartville Star

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

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

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

What's the hardest part about marriage that no one ever talks about?

The other is “what does a “fuse” do?”

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

This device then solves the entire problem.

Why does my narcissistic ex told me that he f*cked and sleep with other woman and then at the end says that it also happened because of me?

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

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

But it can get overloaded, and no longer works.

An Interview With A Terminated Analyst At The Substance Abuse And Mental Health Administration - Defector

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

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?

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

What are 50 random facts about yourself?

Upvotes:

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

One

Bruce Willis Enjoys 'Sunday Funday' With Family Amid Dementia Battle - Realtor.com

There are three different concepts here that are getting confused.

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

2024–10–00 [ Ammar Mahdi ] Ammar Mahdi

He then describes Rainy Season and Lightning.

a photo is worth a thousand words.

(Dc diagram shown, AC is similar).

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

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).

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?".

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

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

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

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

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.

He then describes the function of a fuse.

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

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

This one hit behind the barn.

Edit 2024–10.

What does a fuse do?

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

2024–10–14 [Omar Gharbi Omar Gharbi ]

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

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

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

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

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

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

2024–10–11 [Victor Olarewsju Victor Olarewaju ]

What is lightning?

nine

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

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”

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

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

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