does surge protection need dedicated way?

[black.mamba]

quick question, does a surge protection device require its own dedicated way in a panel, or can it share with another breaker? I've seen different setups, and some say it depends on local codes. Just want to be sure I'm doing it right, what's the best practice?

 

[sSpade25]

Well most surge protection devices have a maximum size for the circuit breaker protecting the circuit theyre connected to. Though, some SPDs can handle breakers or fuses of 125 amps or more. That means you usually don't need to install an extra breaker just for the SPD.

 

[Traverser001]

Best practice is usually to give a surge protector its own breaker, even if it’s small. Some setups share a breaker, but having a dedicated one keeps things cleaner and avoids potential issues plus it usually meets code without question

 

[PGB1]

If you are writing about surge protectors which wire into the load center or panel board, avoid the temptation to shove two conductors under one terminal on a circuit breaker.
This brings us to splicing in the panel or, as Traverser001 wrote- it's own breaker space.

And verify that the circuit breaker is sized in conformance with the device's requirements. I've seen them which are allowed to be on a 15 amp circuit maximum. Many are allowed to be protected at 20 amps.

Certainly don't be tempted to go under the main lugs. You need a way to de-energize the device.