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: 01.07.2025 04:28

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?

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

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.

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

Trump's U.S. Steel decision may come later than expected - Axios

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

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.

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

The Big Bang myth Our origins will always elude us - UnHerd

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

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

Here is a simplified AC power diagram.

This couple paid $19M for 2 Jersey Shore houses. Then they demolished them. - NJ.com

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

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

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

This hidden Android feature was a lifesaver when my home internet died — here's how it works - Tom's Guide

(Dc diagram shown, AC is similar).

[old diagram got deleted by accident]

a photo is worth a thousand words.

Food and fitness make or break success on weight loss meds, report finds - ABC News

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.

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

This one hit behind the barn.

Doctors Find They Can Detect Cancer in Blood Years Before Diagnosis - futurism.com

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

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

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

AMD has limited Radeon RX 9060 XT 8GB sampling based on ‘regional market demand’ - VideoCardz.com

“ 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”

A circuit breaker is similar, but is resettable.

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

Real-World GLP-1 Weight-Loss Results Differ From Trials - Medscape

Edit 2024–10.

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.

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

Have you ever had a weird experience immediately following the death of a loved one that made you think there is an afterlife and that the deceased person was communicating with you?

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

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 two important concepts here.

Harvey Weinstein Was Abused, Defense Says in Retrial Closing Argument - Variety

Upvotes:

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.

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.

Why Adding More Bananas to Your Diet Could Impact Your Blood Pressure - Prevention

2024–10–11 [Victor Olarewsju Victor Olarewaju ]

In schematic diagrams this is the symbol for a fuse:

What is lightning?

Notes and quotes from Day 2 of Raiders' 2025 mandatory minicamp - Las Vegas Raiders

He then describes the function of a fuse.

2024–10–16 [ OO OLAOYE OYEBODE ]

2024–10–10[John johnson John Johnson ]

How does Arab culture and values differ from western culture and values?

This device then solves the entire problem.

First Sentence:

He then describes Rainy Season and Lightning.

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.

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

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

There are three different concepts here that are getting confused.

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

2024–10–14 [Omar Gharbi Omar Gharbi ]

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

The other is “what does a “fuse” do?”

eight

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

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

what exactly is a ‘surge’ protector?

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

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

One

so, what happens?

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

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

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

2024–10–00 [ Ammar Mahdi ] Ammar Mahdi

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

nine

Barnstars:

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

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

[image of Common-mode choke]

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

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

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?

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

What does a fuse do?

At least they know the answer if they wanted it.

This is 'the assistant's answer'

He then asserts :

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

I post the exact comment here.

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

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

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

But it can get overloaded, and no longer works.

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

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

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