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?

08.06.2025 08:58

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

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

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

Have you ever been forced into bestiality?

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

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

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

Why does my mother care about my sister more than me?

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

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.

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

What made you recently say to yourself, “Wait. Really?”

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.

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

[image of Common-mode choke]

In your opinion, who is the most overrated singer/band/artist in modern music history and why?

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

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

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?

My ex moved on so fast. How can I overcome the pain?

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.

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

First Sentence:

Have you or anyone you know invested in cryptocurrencies before? If so, which one did you invest in and how much profit did you make?

Here is a simplified AC power diagram.

He then describes Rainy Season and Lightning.

There are two important concepts here.

I'm British and I hate my glasses. Are prescription glasses better in New York City?

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

This device then solves the entire problem.

At least they know the answer if they wanted it.

Could humans be selectively bred, like dogs, to create 2 subspecies that can no longer have offspring? Do I not understand selective breeding properly? Im not worried about the moral implications, just the science please.

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.

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

Edit 2024–10.

Prediction: Nvidia Will Beat the Market. Here's Why - The Motley Fool

He then describes the function of a fuse.

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

A circuit breaker is similar, but is resettable.

Why did Amazon initially deny leave of absence to Alexis Scott-Windham, the Amazon worker who survived the New Orleans terrorist attack?

Upvotes:

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

2024–10–11 [Victor Olarewsju Victor Olarewaju ]

If everyone in Russia dropped into holes in the ground only never to return, would that be good for NATO and international peacekeepers? Can we convince Russians to be less diabolical, so they coexist? Does Putin stink like doo doo in the commode?

He then asserts :

What does a fuse do?

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

Why do people have polyamorous relationships?

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

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.

2024–10–00 [ Ammar Mahdi ] Ammar Mahdi

This is 'the assistant's answer'

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

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

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

I post the exact comment here.

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

But it can get overloaded, and no longer works.

2024–10–10[John johnson John Johnson ]

Barnstars:

What is lightning?

The other is “what does a “fuse” do?”

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

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

eight

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

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

In schematic diagrams this is the symbol for a fuse:

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

2024–10–16 [ OO OLAOYE OYEBODE ]

nine

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

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

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 one hit behind the barn.

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

(Dc diagram shown, AC is similar).

so, what happens?

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

One

what exactly is a ‘surge’ protector?

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

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

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

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

2024–10–14 [Omar Gharbi Omar Gharbi ]

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.

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

“ 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”

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

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

[old diagram got deleted by accident]

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.

There are three different concepts here that are getting confused.

a photo is worth a thousand words.

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