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Your cart is empty.The new BoltShield FSPD model of surge protection devices provide the best protection from both externally and internally generated surges. Diagnostic monitoring and 140kA surge current rating provide a simple yet uncompromised shield against the surge. Get equipped with the surge protection to keep your home safe!
DrDDD
Reviewed in the United States on February 19, 2025
Easy to install and hopefully will work when times comes. Excellent brand reputation. This is well built. I installed it without the need for an electrician, but you need to assess your comfort level before doing so.
m shuler
Reviewed in the United States on January 28, 2025
Easy install, lower breaker requirement than others, and got a good price
Donrim
Reviewed in the United States on September 9, 2024
The Siemens Boltshield FSPD140 surge protector is a newer version of the Siemens FS140 surge protector. The main difference is that the metal oxide varistors inside the newer Boltshield unit are very large rectangular monolithic devices. Only 5 of these large monolithic varistors are installed inside due to their large capacity.In the older FS140, much smaller disc shaped varistors are used so about 30 of these small disc varistors are installed inside to have the equivalent protection of the 5 large varistors in the newer FSPD140. See photo included of the inside of the newer FSPD140.Cenrral Florida is the lightning capital of the US and this Siemens surge protector has much greater surge capacity for longer life under repetitive surge events caused by nearby lightning strikes here.This unit was installed outside next to the main disconnect breaker panel where it has the shortest connection to the main earth ground wire for best performance.
Customer
Reviewed in the United States on September 29, 2024
This surge suppressor actually works. It was easy to install even though the directions weren’t well written and the diagrams could have been done much better. I had previously installed a Furniqro surge protector that only lasted 4 days. This Siemens one is still working after a week and a half so I think it is a much better choice. Bob
Homemaster
Reviewed in the United States on July 31, 2024
The install was very easy and the device came with good instructions. But I cannot comment on the protection performance this early, obviously.
SRP
Reviewed in the United States on July 27, 2024
The surge suppressor is the newer version and is made to look more complex than it needs to. But its very easy once you get to the basics. Also, more importantly once installed, it provides peace of mind knowing you will more easily survive an external surge.
G. S. Tipsword
Reviewed in the United States on July 26, 2024
Replaced a Sycom SYC-120/240-T2, which used to be sold here on Amazon, after discovering UL had revoked their rating for non-compliance, multiple reports of explosions/house fires, and the demise of the Sycom Surge, Inc parent company. Ironically, it was the chosen device in a 2016 Ask This Old House - How to Install Surge Protection video. Who knew.Like others have said, this requires a spacer to install since the nut will not thread completely on. I don't have any use for the included alarm wiring, but it's a nice inclusion.Honestly, you won't be able to tell if this, or any similar devices, have actually stopped a surge. Correct operation is essentially invisible. Thing is you can't realistically put individual suppressors on everything. Garage door openers, gas stove/oven clock and controls, furnaces, outdoor lights, etc. Adding extra point-of-plug devices is perfectly OK, particularly for TV's, computers, routers, and so on. I've got suppressors on both my AC condenser disconnects besides this one. But a whole-house approach is your best hope for everything else.The question for physics majors: most info on hard-wired suppressors will recommended attaching them (through a double breaker) on the busses as close to incoming panel power as possible to potentially intercept a surge before it reaches other breakers (at the speed of light?). Additionally, the wiring should be cut as short as possible (and even lightly twisted), purportedly to keep the number of a surge's sine wave cycles limited. Neither of these suggestions can typically be physically accomplished, mostly due to the panel often being installed between studs so the top or bottom is the only available mounting surface and the limited length of existing wiring to move current (no pun) breakers. Hopefully this doesn't render the devices noticeably ineffective.
Customer
Reviewed in the United States on December 2, 2024
The product works great! I haven't yet run into a big power surge but it looks like it's ready to gulp down a nice thunderbolt.
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