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HomeAudio/VideoPOW100344 Surge Protector With Phone/Fax/Modem Line Protection, Black |
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|  | | | Customer Reviews: | | | Average Customer Review: ( 6 customer reviews )
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Most Helpful Customer Reviews
32 of 32 found the following review helpful:
 Faster Response is more critical than amount of Joules Mar 23, 2005
By Traveler
I have owned the Power Blocker II for a year and it is the best. I just bought myself a Belkin for another electronics area in my home...when I could not find the PBII for sale.
KEY ITEMS:
*** Faster response time is more critical than number of joules.
*** All you want is for your unit to be disconnected from the harmful surge.
Just found the unit here at Amazon...and probably will buy another one.
What follows is info I received from Power Sentry...which is owned by Fiskars:
The amount of transient (lightning) joules the Power Blocker II can absorb is about 900 joules. This number does not take into account the amount of joules that the Power Blocker II (PB2) switch is eliminating. The response time of the MOV components (the 900 joules part) is < 1 nanosecond. The response time of the PB2 switch is about 2 milliseconds. The way the Power Blocker II works is that the MOVs will clamp first and if the surge is of long duration, > 2 milliseconds, the PB2 switch will open and disconnect all possible electrical output paths. The way other surge protectors work is that the MOVs will clamp, and if the surge is of long duration, the MOVs will heat up and burnout a thermal sensitive fuse placed beside the MOVs. The heating and burnout time of the fuse is > 2 seconds, typically about 10-30 seconds.
Other surge protectors attempt to absorb all of the surge energy entering the protector even though it may be excessive and cause MOV degradation. The Power Blocker II detects when surge energy reaches a damaging level and disconnects all MOVs and equipment connections, thus interrupting the surge. Therefore its MOVs are much less likely to suffer degradation or "wear out". Because of this rapid disconnecting feature, which blocks any further surge energy, in effect the joules of energy attempting to enter the unit and equipment are unlimited because everything has been disconnected.
The MOVs are not degraded when the unit trips as described. Therefore the Power Blocker II should operate much longer than conventional surge protectors and will survive power company mistakes and wiring faults when others surge protectors will nearly always be destroyed. So far we have not received any Power Blocker II returns with a MOV failure.
4 of 4 found the following review helpful:
Best price I've found for this much protection May 29, 2008
By R. SAFRENO
This unit has a unlimited joule value. This unit doesn't rely on wattage or heat buildup to melt or trigger a disconnect of the electrical current. Those types have to be thrown away when a spike activates them. This unit can be reset again and again and opens the electrical circuit in a fraction of time that other top units boast about. It you have a home theater and use a subwoofer, the subwoofer's amplifier is the unit that usually sustains damage first. Get several of these but if you just get one then be sure to include the subwoofer. The other electrical components can be ran off this with extension cords if necessary. Know where your circuit breakers are as the test button on this unit will trip the circuits outdoor main circuit breaker too. When a big electrical storm comes around I always trip my breakers that have any audio/video equipment connected.
Good surge protection Dec 15, 2010
By S. Hallgring
"Guapote"
I had one of these for years with my computer and all the peripherals plugged into it. I had a power spike that completely fried it but it saved all my gear. I bought another one just like it and you probably should too.
0 of 2 found the following review helpful:
 GARBAGE DOESN'T WORK Sep 06, 2009
By Michael Luciano
THIS IS THE WORST SURGE PROTECTOR I HAVE EVER OWNED. IT TURNS MY EQUIPMENT OFF ALMOST EVERY DAY FOR NO REASON. I RESET IT AND SOMETIMES IT WORKS AND SOMETIMES IT DOESNT. I HAVE STOPPED USING IT AND IM USING THE OLD ONE AND IT WORKS GREAT. JUNK!!
1 of 7 found the following review helpful:
Everything as good as they said Sep 29, 2005
By Ol Rod
Ordered Surge Blocker Thru Amazon on Sept. Had it in less than a week.I have a computer plugged into it. It looks well-built, and does everything I expected it to. Rod
See all 6 customer reviews on Amazon.com
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