Where to place the SPD...

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1793

1793

Senior Member
Location
Louisville, Kentucky
Occupation
Inspector
I have a customer who would like to add a Surge Protection Device at the panel(s) to cover their electrical system.

Does it matter where the SPD is located, i.e. does it have to go at or close to the main breaker or can it be installed in the second or sub-panel?
 
Buck Parrish

Buck Parrish

Senior Member
Location
NC & IN
1793 said:
I have a customer who would like to add a Surge Protection Device at the panel(s) to cover their electrical system.

Does it matter where the SPD is located, i.e. does it have to go at or close to the main breaker or can it be installed in the second or sub-panel?
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SPD seems like it would work much better at the main panel. It would most likely tell you in the instructions.
The ones I have installed for an average 200 amp service. We put them in the main panel.
Thier was no reason to install it in a sub.
You must not have any extra spaces, aye?
They cost us from $175-$400
 
brian john

brian john

Senior Member
Location
Leesburg, VA
The best protection is multi-level one at the panel and at any electronics that you wish to protect.

Per the manufacture size the CB
Run conductors as straight as possible, no tight bends
Cable tie them together
Keep them as short as possible.
 
1793

1793

Senior Member
Location
Louisville, Kentucky
Occupation
Inspector
Buck Parrish said:
SPD seems like it would work much better at the main panel. It would most likely tell you in the instructions.
The ones I have installed for an average 200 amp service. We put them in the main panel.
Thier was no reason to install it in a sub.
You must not have any extra spaces, aye?
They cost us from $175-$400
Click to expand...

There is no room in the main panel. I might be able to move a few circuits to make room.
 
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