Is this surge protector enough?



Actually the wattage can be an issue since some surge protectors have a limited wattage.
However the one you showed is not very good since it only has a 10amp fuse. Get one with a 13amp at least, even your PSU plug has a 13amp.
What you want to check is how many joules it protects and then compare that number to other products out there.
 


First, read its numbers. It says 10 amp / 2500 watts. Why would it not support a 750 watt load?

Second, your computer does not also toast bread. It is not consuming anywhere near to 750 watts. A typical gaming computer that rarely exceeds 250 watts means we tell computer assemblers they need a 500 watt supply. It keeps help lines free of people asking to be taught basic electrical concepts. At 750 watts, your supply is probably three times larger than what is needed.

Third, read another number: 306 joules. Destructive surges can be hundreds of thousands of joules. What happens to that protector when it absorbs a destructive surge? Either it disconnects protector parts as fast as possible leaving that surge connected to your computer. Or that thermal fuse does not trip fast enough and a fire results. Its indicator light can only report one type of protector failure: that a protector was woefully too undersized for that surge.

Fourth, what happens to a 300 joule surge? It gets consumed by a computer's power supply. Trivial 300 joule surges are converted by a supply into rock solid, stable, and well regulated DC voltages. That tiny surge (called noise) is converted to power the computer's digital semiconductors. That tiny 300 joule surge is so trivial as to be called noise.

And finally, destructive surges require a completely different solution. Unfortunately, the superior and effective solution is also called a surge protector. But this 'whole house' protector operates completely different. Comes with manufacturer specification numbers that claim it protects even from direct lightning strikes ... and remains functional. This superior solution costs tens of times less money per protected appliance.

Facilities that cannot have damage use the much less expensive and superior 'whole house' solution. Because protection is always about where hundreds of thousands of joules harmlessly dissipate.

Bottom line is this. Any recommendation that ignores perspective (numbers) is best ignored. As demonstrated by Maplin provided specifications, that protector is a most expensive solution that also does not protect from typically destructive surges. And in rare cases, can be a potential fire hazard.
 

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