cbass Posted November 13, 2010 Report Share Posted November 13, 2010 I encountered a house today with a 200 amp service line and meter, installed to a 150 amp panel. The panel was original at 40 years of age, the service line was obviously newer. Is there any "danger" to this or is there just a higher likelihood of tripping the main breaker? The panel is going to be replaced for other various reasons, i am just wondering. Thanks Link to comment Share on other sites More sharing options...
Mark P Posted November 13, 2010 Report Share Posted November 13, 2010 What was the rating of the main disconnect? If the panel was only rated for 150 amps and it was being used with 200 amp service, I would think it is a safety concern. Link to comment Share on other sites More sharing options...
cbass Posted November 13, 2010 Author Report Share Posted November 13, 2010 The main disconnect was 150 amp. Link to comment Share on other sites More sharing options...
Brandon Whitmore Posted November 13, 2010 Report Share Posted November 13, 2010 If the service disconnect is rated at 150 amps, but you have a 4/0 al, or 2/0 cu, there is no issue. It's only an issue if you have a wire that is too small. Would you be concerned with a 15 amp circuit with a 12 gauge wire? Same thing. Link to comment Share on other sites More sharing options...
cbass Posted November 13, 2010 Author Report Share Posted November 13, 2010 Thats what i thought, just wanted to verify. Thanks. Link to comment Share on other sites More sharing options...
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