Two disconect switch from the same meter

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julianov

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It is appropriate to install two separate disconnect switches from the meter?. This is due to the presence of a new panel on another floor, and the existing panel already has a disconnect switch.

What are your thoughts on this diagram? The dashed line represents the existing cable and disconnect switch. Or is it better to use a new single disconnect switch?



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julianov said:
It is appropriate to install two separate disconnect switches from the meter?. This is due to the presence of a new panel on another floor, and the existing panel already has a disconnect switch.

What are your thoughts on this diagram? The dashed line represents the existing cable and disconnect switch. Or is it better to use a new single disconnect switch?



View attachment 2569312
Click to expand...
As long as they are grouped together, and do not exceed six, you’re fine. (Providing the meter and wiring are of sufficient ampacity.)
 
Thanks.

Certainly, with the existing disconnect switch, we can control both panels. So, what are your thoughts? Is it preferable to utilize the existing one—meaning, to use just one switch for both panels—or should we consider adding another switch so that each panel has its own disconnect switch?

Thanks in advance.
 
You will need to do load calculations and then make sure the existing service conductors are adequate.

As another poster mentioned as long as they are grouped together you can probably do what you are proposing if the service conductors are adequately sized.
 
julianov said:
Thanks, One panel is 80 amps and the other is 65 amps. The meter is a 200amps
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Last time I checked 80 plus 65 is less than 200, you still have capacity for a third switch with 55 amps connected to it, maybe only 35 if say you had 4/0 aluminum as the service conductor which has an ampacity of 180 but is allowed to be protected at 200.
 
Just this last Thursday I replaced the lugs in a 200 amp meter because there was a 60 amp disconnect double-tapped off of it. The lineman gave me the replacement double lugs because it's a very common install with that power company. The second disconnect was for a detached garage.

I had never seen a double lug for 200 amp meter
 
James L said:
Just this last Thursday I replaced the lugs in a 200 amp meter because there was a 60 amp disconnect double-tapped off of it. The lineman gave me the replacement double lugs because it's a very common install with that power company. The second disconnect was for a detached garage.

I had never seen a double lug for 200 amp meter
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Funny how parallel topics seem to come up on this site. Another current thread is about such add on lugs for Milbank meters

https://forums.mikeholt.com/threads/milbank-line-side-tap-kit.2578305/
 
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