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jmabi 56.4K Views
Jun 9, 2023 4:37 PM

Tripp Lite Isobar Ultra 8-Outlet Surge Protector Power Strip w/ 12' Cord

$54

$73

26% off
+ Free Shippingat Amazon
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Deal Details
Update: This deal is still available and with a slightly lower price.

Amazon has Tripp Lite Isobar Ultra 8-Outlet Surge Protector Power Strip w/ 12' Cord on sale for $54.92 -> Now $54.41. Shipping is free.

Walmart also has Tripp Lite Isobar Ultra 8-Outlet Surge Protector Power Strip w/ 12' Cord on sale for $54.92 -> Now $54.41.. Shipping is free.

Thanks to community member jmabi for finding this deal.

Product Details:
  • 3840-joule surge protection rating
  • EMI/RFI noise filtering protects against outside interference
  • Isolated filter banks protect against internal interference
  • 12-foot AC input cord with 5-15P right-angle plug

Editor's Notes

Written by oceanlake
  • Comes with a limited lifetime warranty.
  • This surge protector has received an average rating of 4.8 stars out of 5 based on over 1,600 Amazon customer reviews.
  • Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
  • If you're not a student, there's also a free 1-Month Amazon Prime trial available.

Original Post

Written by jmabi
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Update: This deal is still available and with a slightly lower price.

Amazon has Tripp Lite Isobar Ultra 8-Outlet Surge Protector Power Strip w/ 12' Cord on sale for $54.92 -> Now $54.41. Shipping is free.

Walmart also has Tripp Lite Isobar Ultra 8-Outlet Surge Protector Power Strip w/ 12' Cord on sale for $54.92 -> Now $54.41.. Shipping is free.

Thanks to community member jmabi for finding this deal.

Product Details:
  • 3840-joule surge protection rating
  • EMI/RFI noise filtering protects against outside interference
  • Isolated filter banks protect against internal interference
  • 12-foot AC input cord with 5-15P right-angle plug

Editor's Notes

Written by oceanlake
  • Comes with a limited lifetime warranty.
  • This surge protector has received an average rating of 4.8 stars out of 5 based on over 1,600 Amazon customer reviews.
  • Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
  • If you're not a student, there's also a free 1-Month Amazon Prime trial available.

Original Post

Written by jmabi

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95 Comments

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Jun 10, 2023 9:09 PM
1.4K Comments
Joined Jan 2004
seawolfJun 10, 2023 9:09 PM
1.4K Comments
It's a lot better than some of the junk posted on SD wth zero specs other than a joule rating. This is a real surge protector with specs to match.

https://tripplite.eaton.com/isoba...OBAR8ULTRA

One can do cheaper and get similar specs from from Cyberpower or Monoprice.
Last edited by seawolf June 11, 2023 at 06:09 AM.
Jun 10, 2023 9:14 PM
681 Comments
Joined Nov 2004
adrenalinemedicJun 10, 2023 9:14 PM
681 Comments
Quote from PetSpy View quoted comment :
just a suggestion... if you are spending this much money
on some glorified surge protector, you may as well buy a;
https://www.amazon.com//dp/B00009RA60
line conditioner, which is superior to ANY surge suppressor
as it also adds brown out protect which is very common.
these will remain effective forever, while surge protectors
lose their their rating over the years. i bought this 600w
https://www.youtube.com/watch?v=29MBmnGYBQo
30 years ago for $100 and it's been flawless ever since,
protecting all my home network and AV equipment.
Damn I'm just impressed someone is still making tech using 1990 off-white plastic cases.
2
1
Jun 10, 2023 9:26 PM
9.6K Comments
Joined Aug 2018
TodayOnlyJun 10, 2023 9:26 PM
9.6K Comments
Quote from ceevee View quoted comment :
Read some reviews noting 330 or 350 clamping voltage. Can someone clarify? Is this the clamping voltage across all legs?

I'm also trying to understand the protection difference between this and another tripp lite TLP1208TEL: https://www.amazon.com/dp/B0036FS...dp_it&th=1 [amazon.com]
oh shit! cat out of bag!
3
Jun 10, 2023 9:32 PM
2.4K Comments
Joined Oct 2011
MWinkJun 10, 2023 9:32 PM
2.4K Comments

Our community has rated this post as helpful. If you agree, why not thank

Quote from PetSpy View quoted comment :
just a suggestion... if you are spending this much money
on some glorified surge protector, you may as well buy a;
https://www.amazon.com//dp/B00009RA60
line conditioner, which is superior to ANY surge suppressor
as it also adds brown out protect which is very common.
these will remain effective forever, while surge protectors
lose their their rating over the years. i bought this 600w
https://www.youtube.com/watch?v=29MBmnGYBQo
30 years ago for $100 and it's been flawless ever since,
protecting all my home network and AV equipment.
This is not correct and even the video you linked partially mentions it. Line conditioners (and UPSs) use the same sacrificial MOVs as surge protectors. Not only that, they often have fewer than you'd find in a good surge protector. The unit in the video only appears to have 5 MOVs. I've seen high end APC and Tripp-Lite surge protectors with at least 6-10. That also doesn't get into the joule rating and clamping voltage, which can also be better in a good surge protector.

People often overestimate what a line conditioner or UPS does, probably due to good marketing. A line conditioner is usually simply a mediocre surge protector combined with a 2 or 4 stage AVR. As demonstrated in that video, that model has 4 discrete AVR modes (2 boost and 2 buck). This will boost or trim the incoming voltage by a certain percentage. As he shows, it does NOT guarantee a constant 120V. An AVR is really only useful if use experience frequent, prolonged mild/moderate undervoltages or overvoltages and have equipment that is sensitive to them. Many modern switching power supplies are already designed to accept voltages in this range. I don't think line conditioners are particularly useful for the average person. Depending on your needs, a good surge protector or a UPS is likely a better choice.

Unless they've changed, the Tripp-Lite Isobar Ultra is a high quality point-of-use surge protector. Like most other surge protectors you see for sale, it does use sacrificial MOVs that WILL eventually fail (even if it takes decades). If you want something that should last forever, you need to shell out big money for a series mode surge protector. Those are uncommon and expensive (I think about $200 for the most basic model).

For protection from surges originating from outside the house, a whole-house surge protector is the best choice. These provide far superior protection, due to their proximity to earth ground. Point-of-use surge protectors are still a good idea for surges originating inside the house.

Quote from User18383921 View quoted comment :
Can I plug in this tripp lite isobar or my furman into that power conditioner?
If you're going to do that, it would be preferable to do it the other way around. Plug the power conditioner into the surge protector.
1
1
Jun 10, 2023 9:44 PM
927 Comments
Joined Sep 2011
doctorwizzJun 10, 2023 9:44 PM
927 Comments
Line interactive UPS is the best line conditioning.
Jun 10, 2023 9:45 PM
80 Comments
Joined Oct 2016
MichaelH5734Jun 10, 2023 9:45 PM
80 Comments
ESP XG-PCS-15D

There is literally no better home use surge protector. They will never wear out.
Jun 10, 2023 9:46 PM
381 Comments
Joined Dec 2011
ps26Jun 10, 2023 9:46 PM
381 Comments
Quote from doctorwizz View quoted comment :
Line interactive UPS is the best line conditioning.
Actually an "online" double conversion pure sine wave style UPS is best.

I no longer use standard line interactive UPSs for anything.

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Jun 10, 2023 9:48 PM
927 Comments
Joined Sep 2011
doctorwizzJun 10, 2023 9:48 PM
927 Comments
Quote from ps26 View quoted comment :
Actually an "online" double conversion pure sine wave style UPS is best.

I no longer use standard line interactive UPSs for anything.
That is what i meant. too buzzed
Jun 10, 2023 10:07 PM
2.4K Comments
Joined Oct 2011
MWinkJun 10, 2023 10:07 PM
2.4K Comments

Our community has rated this post as helpful. If you agree, why not thank

Quote from ceevee View quoted comment :
Read some reviews noting 330 or 350 clamping voltage. Can someone clarify? Is this the clamping voltage across all legs?

I'm also trying to understand the protection difference between this and another tripp lite TLP1208TEL: https://www.amazon.com/dp/B0036FS...dp_it&th=1
I've read about this before but it's been a long time, so I don't remember most of the details. I believe there are different ways they get rated, which is why you see differences between the specs and the numbers stamped on the back of the units. There's also the issue of what absolute voltage they clamp at and how much excess voltage they let through before clamping. You have to remember that 120V RMS has a peak of 170V. You can't have a clamping voltage lower than the peaks of the sine wave, or else it would clamp on every cycle.

Additionally, as MOVs (the surge protection component) wear out, the clamping voltage drops. If/when the clamping voltage drops below the peaks of the sine wave, it will start clamping when there is not a surge, leading to a positive feedback loop and thermal runaway. This is one of the reasons surge protectors sometimes catch fire. Modern surge protectors are required to have thermal fuses, to reduce the likelihood of this. The point is, all else being equal, a MOV with a lower clamping voltage will fail quicker than one with a higher clamping voltage. It will both be suppressing milder surges and have less room for degradation before failure.

As you brought up, the clamping voltage (and joule rating) can also be different between legs. Unlike hot-neutral and hot-ground, neutral-ground should have less/no difference in potential between them (0V). This is not always the case, especially in improperly wired circuits. The level of protection provided does often differ between the various legs. Surges are less likely neutral-ground, so there's usually less protection there. Hot-neutral and hot-ground are the bigger concern.

As for the product you linked, it looks like a slightly lower end unit. It doesn't appear to be of their flagship Isobar/Isotel line. It lacks the isolated filter banks and metal casing. It may also have weaker surge protection. It does have RJ11 (telephone) protection but not many people still have conventional landlines. I would spend the extra on the Isobar in this deal.
4
Jun 10, 2023 10:37 PM
406 Comments
Joined Sep 2016
alcieJun 10, 2023 10:37 PM
406 Comments
Quote from MichaelH5734 View quoted comment :
ESP XG-PCS-15D

There is literally no better home use surge protector. They will never wear out.
With people looking for very low clamping voltage, I wonder how many months (or weeks?) would implied protection last. Small non-events should consume a lot of those joules.
Jun 10, 2023 10:45 PM
1.4K Comments
Joined Nov 2003
JesusFreakJun 10, 2023 10:45 PM
1.4K Comments
Quote from PetSpy View quoted comment :
just a suggestion... if you are spending this much money
on some glorified surge protector, you may as well buy a;
https://www.amazon.com//dp/B00009RA60
line conditioner, which is superior to ANY surge suppressor
as it also adds brown out protect which is very common.
these will remain effective forever, while surge protectors
lose their their rating over the years. i bought this 600w
https://www.youtube.com/watch?v=29MBmnGYBQo
30 years ago for $100 and it's been flawless ever since,
protecting all my home network and AV equipment.
Even better is to use a pure sine wave UPS. All of those features plus blackout protection.
2
Jun 10, 2023 11:04 PM
104 Comments
Joined Jun 2021
sdplatypiJun 10, 2023 11:04 PM
104 Comments
I would be sure to read this article first before buying this product. https://www.computerworld.com/art...t.amp.html

The manual says "All models feature an internal protection that will disconnect the surge-protective component at the end of its useful life but will maintain power to the load—now unprotected."

Translation: when the thing dies, your stuff is not protected.
2
Jun 10, 2023 11:34 PM
82 Comments
Joined Dec 2007
nopointinnamesJun 10, 2023 11:34 PM
82 Comments
Quote from OrangeTable233 View quoted comment :
I would be sure to read this article first before buying this product. https://www.computerworld.com/art...t.amp.html

The manual says "All models feature an internal protection that will disconnect the surge-protective component at the end of its useful life but will maintain power to the load—now unprotected."

Translation: when the thing dies, your stuff is not protected.
Which is how almost every surge protector does excluding a few
Jun 10, 2023 11:43 PM
240 Comments
Joined Dec 2015
robbobsterJun 10, 2023 11:43 PM
240 Comments
Quote from User18383921 View quoted comment :
Can I plug in this tripp lite isobar or my furman into that power conditioner?
That's exactly what I do. Works great.

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Jun 11, 2023 12:09 AM
2.4K Comments
Joined Oct 2011
MWinkJun 11, 2023 12:09 AM
2.4K Comments
Quote from JesusFreak View quoted comment :
Even better is to use a pure sine wave UPS. All of those features plus blackout protection.
Not quite. Not all AVR is created equal. For example, the APC Line-R in that video has 4 modes (2 boost, 2 buck). Most UPSs don't have that many. The most I've ever seen is 3 (2 boost, 1 buck). Many modern consumer grade UPSs have only one boost. It's not likely to matter to most people but still something to be aware of.

Quote from OrangeTable233 View quoted comment :
I would be sure to read this article first before buying this product. https://www.computerworld.com/art...t.amp.html

The manual says "All models feature an internal protection that will disconnect the surge-protective component at the end of its useful life but will maintain power to the load—now unprotected."

Translation: when the thing dies, your stuff is not protected.
That article is over a decade old and its links are dead. Further, it is inaccurate, or at least no longer accurate. The current specs for this unit clearly indicate:

Automatic shutoff permanently cuts power to outlets if protection circuit is incapacitated, preventing equipment damage and indicating replacement is required

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