Tripp Lite?

I have a PS Audio DECTET that took a hit from an Edison power surge and it is no longer repaired by PS Audio (discontinued).

Define surge.Lasting a few microseconds to a couple of milliseconds? Or the overvoltage surge lasted several seconds or more?

No surge protector will protect from a Utility Power Company’s high overvoltage surge lasting more than a few microseconds. Some surge protectors do have over-under voltage protection through the use of a over-under voltage relay that disconnects the unit from the AC mains power. But even then there is no 100% guarantee it will disconnect from the AC power before causing damage. It depends on how high the overvoltage event is. 

Example of an over-under voltage relay.

https://www.chintglobal.com/global/en/about-us/news-center/blog/voltage-protection-relay.html

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@jhm007 said:

"...It depends on how high the overvoltage event is."

Trying to get any real info from SCE is a challenge!

I defer to my post above on 06-28-2025 at 09:03am                                   

The Power Company should have a record of the event. As I said in my post above a typical SPD, Surge Protection Device, will not protect from an overvoltage event lasting more than a few seconds. They are not designed to.They are designed to protect from a transient surge.

https://www.nemasurge.org/faqs/

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Premium Safety Features

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

Tripp Lite series Isobar 8-Outlet Surge Protector

 Internal thermal fuse protection prevents MOVs from exploding. 

Kills power to all outlets.

Safe Thermal Fusing Prevents unsafe conditions during extreme extended over-voltages and catastrophic occurrences

ISOBAR6ULTRA

Same protection here.

I have three of these.( older units I’ve had for a while.) Two I use on my H/T system. One on my computer. 

As for the H/T audio system the SPD does require some burn-in time. My guess is, it’s because of the filtering circuitry.

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FWIW, I bought my Tripp Lite ISOBAR6 ULTRA SPD/conditioners in 2020.  They have the fuse protection. I personally would only buy new factory fresh SPD/Power Conditioner. Never used or reconditioned.            

FWIW, it should be noted that Amazon.com is not on the Furman authorized dealers list. If buying through Amazon make sure the dealer selling the Furman products on Amazon is an authorized Furman dealer.

I think the same is true for Tripp Lite / Eaton products as well.

Furman, Where to Buy

Important Note for Internet Purchasers

Furman strictly enforces its Authorized Reseller agreements and only allows resellers who have been properly vetted to sell its products. Furman’s Authorized Resellers ensure a quality customer experience because they receive specialized product training and are the only resellers authorized to extend Furman’s product warranty. 

 

YOUR FURMAN WARRANTY WILL NOT BE VALID IF YOU PURCHASE A FURMAN PRODUCT FROM AN UNAUTHORIZED SELLER, or if the original serial number has been removed, defaced or modified.
 

Only authorized dealers provide NEW Furman products — not used or refurbished — and have the training and expertise to assist you in selecting the correct model for your application. They also have the knowledge to correctly answer any questions regarding proper installation and ensure that your Audio Video system is fully protected. Purchase your Furman product from one of our Authorized Online dealers.

Note: Furman products purchased through auction sites DO NOT have a valid warranty.

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