Oh, feeding the panel through a circuit breaker is perfectly ok. It's not functionally different from having a main breaker at the top of the panel. However, you wouldn't need any breaker at all if it's a subpanel being fed from a circuit breaker in another panel, and you can also have no main breaker at all if you can abide by the 6-switch rule. Code & Inspections obviously vary by locality, but at least in NY State we are allowed to have a tiny load center like that on an electric meter without a main breaker.
I think in that intended scenario (an RV park) the breaker from the source is the one protecting the circuit, and breaker in the subpanel might be just so you can shut it off without walking all the way back to the main panel. I'm fuzzy about their diagram showing a jumper from neutral to ground. It's clearly intended to be a subpanel, and normally neutral and ground are not bonded in a subpanel. Maybe it's required for submetering, but I don't have any experience with that. -Adam ________________________________ From: AF <[email protected]> on behalf of Carl Peterson <[email protected]> Sent: Monday, August 25, 2025 11:10 AM To: AnimalFarm Microwave Users Group <[email protected]> Subject: Re: [AFMUG] Power for cabinet Thanks Adam! The customer is me - I just used that ped / meter base as an example. In the real world I need MEG certified ringless but I'm trying to figure out if I actually need a breaker on it or if I can feed directly - There is surge protection on the lugs I'd normally connect a panel to and connecting a meter to the "output of" on a 60A breaker doesn't seem kosher to me. On Fri, Aug 22, 2025 at 5:11 PM Adam Moffett <[email protected]<mailto:[email protected]>> wrote: From the specs on the manufacturer's website: [cid:ii_198e1c4b399cb971f161] Unless it's being fed from another load center somewhere your customer picked the wrong part. -Adam -- AF mailing list [email protected]<mailto:[email protected]> http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- Carl Peterson PORT NETWORKS 401 E Pratt St, Ste 2553 Baltimore, MD 21202 (410) 637-3707
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