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 00:43

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?

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

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

What is the process of becoming an Evangelical preacher? Is attending seminary school necessary? How long does it typically take? Is it financially challenging?

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

nine

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

Why do Brits drive a lot more dangerously compared to Americans? Is there just no courtesy when driving in the UK?

First Sentence:

“ 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”

2024–10–16 [ OO OLAOYE OYEBODE ]

Why have feminists not demanded that females be required to register with the selective service? Are female lives more precious than male lives?

I post the exact comment here.

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

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

Why do so many people find Kakashi's character so appealing and inspirational?

There are three different concepts here that are getting confused.

2024–10–10[John johnson John Johnson ]

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 do you start "growing old"?

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

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

eight

What are scads fish? What types are there?

Here is a simplified AC power diagram.

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.

He then describes Rainy Season and Lightning.

What is the meanest thing your husband has said to you?

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

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

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

Why do women wear less clothes compared to men?

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

Edit 2024–10.

This one hit behind the barn.

What are some healthy ways to start losing weight without risking starvation mode or extreme food restriction?

(Dc diagram shown, AC is similar).

This device then solves the entire problem.

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

Why would a spouse cheat if the marriage is good?

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.

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

Upvotes:

Why do people hate on Serena (anime character)? What did she ever do to anyone except be a good friend to Ash Ketchum and an awesome trainer herself?

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.

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 does it mean when we dream about demons, ghosts, monsters, etc.?

2024–10–11 [Victor Olarewsju Victor Olarewaju ]

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

The other is “what does a “fuse” do?”

What is lightning?

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

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

In schematic diagrams this is the symbol for a fuse:

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?".

[old diagram got deleted by accident]

This is 'the assistant's answer'

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

At least they know the answer if they wanted it.

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

A circuit breaker is similar, but is resettable.

Barnstars:

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

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

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

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?

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

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

What does a fuse do?

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

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

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

He then describes the function of a fuse.

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

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.

One

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

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 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.

2024–10–00 [ Ammar Mahdi ] Ammar Mahdi

[image of Common-mode choke]

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.

He then asserts :

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

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

what exactly is a ‘surge’ protector?

But it can get overloaded, and no longer works.

There are two important concepts here.

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

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

so, what happens?

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

a photo is worth a thousand words.

2024–10–14 [Omar Gharbi Omar Gharbi ]