Permanent load side termination

[Ewallace95]

Im trying to figure out if I can achieve the following task for a solar project (powerwall 3/backup switch). I have a split 400A Siemens panel and I am looking to move the 200A main breaker into the upper main breaker slot so I can run this feed to an isolated backup switch and then back to a sub feed kit on the circuit bussing in the MSP. I have to do this due to the fact that it is a 320A feed and the Tesla switch is only rated up to 200A. I was hoping to pull the feeders out of the main breaker and permanently terminate them (cap off) without voiding any UL listings and complying with NEC. My initial thought was to just use a Polaris to do this but I don't know if that's consider a permanent solution in this case. Please advise https://share.icloud.com/photos/066ImehonfORko31w6XDiTEkg

 

[idacastro]

I'm trying to figure out if I can achieve the following task for a solar project (powerwall 3/backup switch). I have a split 400A Siemens panel and I am looking to move the 200A main breaker into the upper main breaker slot so I can run this feed to an isolated backup switch and then back to a sub feed kit on the circuit bussing in the MSP. I have to do this due to the fact that it is a 320A feed and the Tesla switch is only rated up to 200A. I was hoping to pull the feeders out of the main breaker and permanently terminate them (cap off) without voiding any UL listings and complying with NEC. My initial thought was to just use a Polaris to do this but I don't know if that's consider a permanent solution in this case. Please advise


https://share.icloud.com/photos/066ImehonfORko31w6XDiTEkg geometry dash

Yes, a Polaris connector can be a permanent splice, but capping off service feeders inside the panel is usually not allowed unless the panel’s listing specifically permits unused terminated conductors. Under NEC 110.3(B) and 230.46, service conductors must follow the equipment’s listing, and many AHJs will not approve abandoned service conductors capped inside the service equipment, even with a listed connector.