Whole house surge protector

I am interested in installing a entire home surge protector to protect all electronics and tvs, etc. instead of using strips at each location. The main panel is a Siemens and the sub is a ge. Would I simply need one of these :
Siemens 20 Amp 6.5 in. Whole House Surge Protected-Circuit Breaker QSA2020SPDP at The Home Depot - Mobile
It looks like you remove two 20 Amp breakers (non arch faults) and put this in their place and then connect the circuits that went to the removed breakers. Is that correct? Would this interfere with other arch faults in the panel? And would this also protect the sub.

Thanks

 

You should install this in addition to surge strips at each location. None of these surge devices protect 100% but each one helps as they work together to reduce the voltage spike that ultimately goes to your equipment. This will help protect the sub and devices off of it as the surge protector is designed to reduce the magnitude of the surge.

Yes that device can replace two adjacent 20 amp breakers or fill two empty slots. Ideally it gets located nearest the main breaker. It should not interfere with other arc fault breakers - the UL listing folks sign off on that.

It is also good to review your grounding system to give the surge a good place to go. Check that all wires have good connections with no excessive corrosion - ground rods, water pipe, ufer, etc.

 

Yes it's just that easy, and it does also protect the subpanel. Verifying the quality of the earth grounding system is as important as the surge protector. As astuff said, the surge has to have somewhere to dissipate or else the protector is worthless.