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: 28.06.2025 01:34

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?

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.

The other is “what does a “fuse” do?”

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

7 storylines to watch with All-Star voting underway - MLB.com

nine

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.

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

Why are fewer English people going to their local pubs for a drink? Are they aware that many pubs are shutting down due to lack of customers?

2024–10–11 [Victor Olarewsju Victor Olarewaju ]

what exactly is a ‘surge’ protector?

Barnstars:

Here's One Reason To Buy A Lucid Air Over A Tesla Or Rivian - InsideEVs

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

“ 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”

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

Ok, so this is a question seeking an answer to clear up whatever gymnastics are in my head. I'm a moderately attractive guy, sincere heart, genuinely looking to love another, established. Why don't women that I'm attracted to, want me back?

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

2024–10–14 [Omar Gharbi Omar Gharbi ]

This is 'the assistant's answer'

Hubble Trouble Solved? Webb Telescope Finally Cracks the Universe’s Growth Mystery - SciTechDaily

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

A circuit breaker is similar, but is resettable.

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

Sixers mock draft roundup 9.0: VJ Edgecombe closing in on being No. 3 overall pick - PhillyVoice

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

But it can get overloaded, and no longer works.

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.

What parts of the Bible, if any, are inappropriate to read to children? Why?

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

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

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

Trump Military Parade: Darcy cartoon - Cleveland.com

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

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

I post the exact comment here.

Is Farage right to blame the housing crisis in the UK on migration?

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

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]

Virginia woman arrested in connection with Netflix star's hit-and-run death - NBC News

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

What does a fuse do?

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

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

Upvotes:

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

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.

One

He then asserts :

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

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

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.

This one hit behind the barn.

2024–10–16 [ OO OLAOYE OYEBODE ]

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

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

There are two important concepts here.

so, what happens?

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

Edit 2024–10.

[image of Common-mode choke]

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?

This device then solves the entire problem.

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

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

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

2024–10–00 [ Ammar Mahdi ] Ammar Mahdi

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

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

eight

Here is a simplified AC power diagram.

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

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

He then describes the function of a fuse.

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

(Dc diagram shown, AC is similar).

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

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

a photo is worth a thousand words.

What is lightning?

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

First Sentence:

In schematic diagrams this is the symbol for a fuse:

2024–10–10[John johnson John Johnson ]

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

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

At least they know the answer if they wanted it.

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

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.

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

There are three different concepts here that are getting confused.

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

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

He then describes Rainy Season and Lightning.