78buckshot
Generac model #G007300. Are any installers/electricians using the surge protection device offered by Generac? Comments, reviews, concerns, thoughts? It was brought up in a service meeting at our office due to us seeing big fluctuations in the line voltage. We have not installed any up to this point.
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Geoff Z
We do not stock it nor have we ever used it. I looked for a spec on GenService. I could get the unit to come up but it says there are no manuals available
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grsthegreat
no, I only have used Siemens SF140 units over the years.
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Geoff Z
I found these:
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Cobranut
grsthegreat:

Looking at the Siemens SF140, and I have a few questions.
I have a 400a main service disconnect breaker in front of a 400a Thomson transfer switch, which feeds two 200a distribution panels, which also feed several panels in other buildings.
I assume that for maximum protection it would be best to mount this in the disconnect box, connected by a panel mount 30a double pole breaker fed from the 400a main breaker.
Alternatively, I could mount it in the transfer switch, fed from the load side so that it would also protect when on generator power, but this would not completely protect the electronics in the transfer switch.  I suppose it would when in the utility position, but if a surge came in when on generator, the X-fer switch controls would not be protected.
Which do you recommend as the best method of installation?

Thanks,
David
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Geoff Z
This is a previous thread on this subject. JayH shared some good information.

https://www.zillerstore.com/post/load-center-question-9990169?pid=1307044901
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grsthegreat
I always place it off the the first point into the house. You can add a 2nd unit in transfer switch from gen feed if you wish. 
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BillM
I added this little gem.  It's a Mike Holmes approved device.  LOL.  They make a few variants and this one has the greatest level of protection.  It's received great reviews.  I trust Eaton and found they make good equipment.  

eaton-whole-house-surge-protectors-chspt2ultra-1-64_1000.jpg

https://www.eaton.com/us/en-us/catalog/surge-protection-devices/complete-home-surge-protection.resources.html

 
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grsthegreat
BillM wrote:
I added this little gem.  It's a Mike Holmes approved device.  LOL.  They make a few variants and this one has the greatest level of protection.  It's received great reviews.  I trust Eaton and found they make good equipment.  

eaton-whole-house-surge-protectors-chspt2ultra-1-64_1000.jpg

https://www.eaton.com/us/en-us/catalog/surge-protection-devices/complete-home-surge-protection.resources.html

 
ive installed these also, but the Siemens has a much higher protection rating from surge. But both are good units.
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78buckshot
Thanks for the responses.
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Kaos
I put one of these in. Neighbor has one and he had done a lot of research. Modules are replaceable and lights indicate when one has been compromised. 

Intermatic Smart Guard IG2240-IMSK Whole Home Surge Protector

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Brian Baughman
The Generac surge protector is a Generac branded Eaton SP-1 surge protection device.  The 2020 NEC in Article 230.67 requires that all one- and two-family dwelling units have a surge protective device installed at the service equipment or first downstream distribution panelboard.  This is why Generac teamed up with Eaton to provide these devices.  The SPD can be installed as a Type 1 or Type 2 SPD.  The Eaton SP-1 is a far superior SPD than the "Mike Holmes" Eaton CHSP series devices.
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Geoff Z
Brian that is very interesting. Do you have a sense how inspectors will approach the 2020 SPD requirement? Will it turn into anytime a residential electrical permit is purchased a SPD will have to be added? If so talk about a boon for that market sector...
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BillM

The Generac surge protector is a Generac branded Eaton SP-1 surge protection device.  The 2020 NEC in Article 230.67 requires that all one- and two-family dwelling units have a surge protective device installed at the service equipment or first downstream distribution panelboard.  This is why Generac teamed up with Eaton to provide these devices.  The SPD can be installed as a Type 1 or Type 2 SPD.  The Eaton SP-1 is a far superior SPD than the "Mike Holmes" Eaton CHSP series devices.

EATON still calls the SP-1 a CHSP series product.  I'm a novice to the specs, which difference makes the SP-1 'far superior'.  I don't doubt it's better, it's more than 4 times more money than the EATON model Mike Holmes endorses so that logic would support better.  Is it better because of a Type 1 install or the specs?  It's too much of a pain for me to go the Type 1 route at this point, and the price for that surge protector is pretty steep.

eaton.jpg 
eaton2.jpg 

 

 

 

 

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Brian Baughman
The Eaton/Generac SPD has a higher fault current rating and also has better MOV's in the device.  It's a commercial grade SPD, not a residential grade SPD like the Mike Holmes ones.  The SPD price through Generac is cheaper than you can purchase the "Mike Holmes" branded ones from big box stores.

https://www.eaton.com/us/en-us/catalog/surge-protection-devices/sp1-series-surge-protection-device.specifications.html
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Brian Baughman
Geoff Z wrote:
Brian that is very interesting. Do you have a sense how inspectors will approach the 2020 SPD requirement? Will it turn into anytime a residential electrical permit is purchased a SPD will have to be added? If so talk about a boon for that market sector...


Yes, every time an electrician installs a new service, or modifies an existing service on a one- or two-family dwelling unit a SPD will be required to be installed 
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