Bain Posted September 14, 2006 Report Share Posted September 14, 2006 So I busted this installation today for not having a main breaker to protect the SE cables from overcurrent conditions(And yes, I'm aware of the "six throw" school of thought). But then I began to wonder what exactly I was looking at. Did someone buy a 100-amp panel so there'd be more spaces, and not leave the main in place? Can the main actually be removed so easily from the panel? Also, this was an old house converted into a business. The only 240 circuits were for the A/C compressor and a 12-gallon H2O heater. Download Attachment: DSC05038a.jpg 138.54 KB Quote Link to comment Share on other sites More sharing options...
Jim Katen Posted September 14, 2006 Report Share Posted September 14, 2006 Originally posted by Bain So I busted this installation today for not having a main breaker to protect the SE cables from overcurrent conditions(And yes, I'm aware of the "six throw" school of thought). But then I began to wonder what exactly I was looking at. Did someone buy a 100-amp panel so there'd be more spaces, and not leave the main in place? Can the main actually be removed so easily from the panel? That's an MLO panel. (main lug only) It never had a main breaker. They can easily fix this by installing a backfed main breaker. (If there's room, and if the panel is rated for use as service equipment.) - Jim Katen, Oregon Quote Link to comment Share on other sites More sharing options...
Bain Posted September 14, 2006 Author Report Share Posted September 14, 2006 Thanks, as always, Jim Quote Link to comment Share on other sites More sharing options...
Brian G Posted September 15, 2006 Report Share Posted September 15, 2006 What brand was it John? At least one company I know of makes an adapter to convert most of their 100 amp main lugggers to main breakers (GE). It goes in at the top and doesn't take any of the available spaces away from the bars. Brian G. Main Lugger = Any Man Whose Girlfriend is Moving [] Quote Link to comment Share on other sites More sharing options...
Bain Posted September 15, 2006 Author Report Share Posted September 15, 2006 Square D. Quote Link to comment Share on other sites More sharing options...
Erby Posted September 16, 2006 Report Share Posted September 16, 2006 Doesn't a round meter can indicate a 60 amp service?? Quote Link to comment Share on other sites More sharing options...
Bain Posted September 16, 2006 Author Report Share Posted September 16, 2006 Yes, Erby, which is why I thought someone replaced the panel and pulled out the breaker. Apparently someone thought no breaker is better than an oversized breaker. Having said that, in Lexington I sometimes see 60-amp meters with newer, appropriately sized wires running out to the pole and also into the panel. I've phoned Kentucky Utilities and their position is that the 60-amp meter can safely handle a 100 amp load. Quote Link to comment Share on other sites More sharing options...
Terence McCann Posted September 16, 2006 Report Share Posted September 16, 2006 Originally posted by Bain Yes, Erby, which is why I thought someone replaced the panel and pulled out the breaker. Apparently someone thought no breaker is better than an oversized breaker. Having said that, in Lexington I sometimes see 60-amp meters with newer, appropriately sized wires running out to the pole and also into the panel. I've phoned Kentucky Utilities and their position is that the 60-amp meter can safely handle a 100 amp load. Bain: Thanks for bringing that up. On older homes that were 60 AMP originally, and have upgraded to central air, I always look for #4 copper to the main. Some of them upgrade, many do not but for the ones that have pulled 100 AMP in I still see the original round meters. Quote Link to comment Share on other sites More sharing options...
carle3 Posted September 17, 2006 Report Share Posted September 17, 2006 I have found some municipalities in my area are allowing the installation of an upgraded meter in the round meter base with 100 amp service to the panel. I had called a few of these out as a mismatched service till I talked to a local municipal inspector who informed me they are not requiring the uprade of the base. Quote Link to comment Share on other sites More sharing options...
Jim Katen Posted September 17, 2006 Report Share Posted September 17, 2006 Originally posted by Erby Doesn't a round meter can indicate a 60 amp service?? Not always. The oldest ones were rated at 60 amps but at some point (and no one seems to know exactly when) they changed to 100 amps. You can still buy a round meter base today that's rated at 100 amps. There's no way to distinguish, from the exterior, whether a round base is rated at 60 or 100 amps. Makes it a bitch for home inspectors. - Jim Katen, Oregon Quote Link to comment Share on other sites More sharing options...
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