Just got back from a service call. H.O. had a 100amp Murray panel that was half under water this weekend, but main never tripped. In my mind it should have , as both bussbars were shorted together. Am I missing something here, or is Murray not as good as I once thought?
Am I missing something here, or is Murray not as good as I once thought?
I guess it depends on how good you thought Murray once was. I never thought it was any good. It is now part of Seimens, which is German for crap. We had a 20 amp Seimens breaker with a dead short on it, it would buzz for several seconds until the Cutler Hammer(CH line) 200 amp main would trip.
I never thought Murray was that great, but good for lower end equipment. So maybe I should suggest to the owners that I replace their panel with something else, like a Suquare D QO ? I still say the main should have tripped. That's the main thing. Now that I've had my hands in this liability is a concern. I have a goodly ammount of insurance, I just don't want to have to use it.
in in basic operation. If there is not enough current flow then the OCPD will not open. If the OCPD is not opening that does not mean it is a bad equipment. It might simply be that there is not enought current to activate the OCPD.
I think the breaker sees the water as a load, and not a direct short. I've been using Murray for a long time, with no problems. They've re-designed the panels. In industrial work, we use GE bolt on style breakers, and panels. How did the water get there? Water main or flood?