mkgrady
Senior Member
- Location
- Massachusetts
I am trying to correct some deficiencies found in a marina float wiring system. There are two typical pedestals on the floats. The circuit feeding this is a 120/240 volt 50 amp feed on a regular plug in Square D homeline breaker in a panel at the top of the gangway in a shed. These pedestals have duplex receptacles with the typical GFCI protection at 5MA. The receptacles meant to feed the boats has no GFP.
The problem is that the circuit including the outlets that feed the boats needs ground fault protection not exceeding 100MA. I think I have figured out that there are no regular plus-in breakers with a 100MA trip. I have asked a local square D supplier and didn't even get a response. I asked my regular supplier that offers Siemens and GE and they don't make them either. I have asked them for alternatives but no response so far.
I'm guessing that somebody offers a 2 pole 50 that has a 100MA GFP trip but not in a plug-in style breaker. If somebody does I can just put it downstream of the existing breaker. If not how does a marina comply with NEC 555.3?
The problem is that the circuit including the outlets that feed the boats needs ground fault protection not exceeding 100MA. I think I have figured out that there are no regular plus-in breakers with a 100MA trip. I have asked a local square D supplier and didn't even get a response. I asked my regular supplier that offers Siemens and GE and they don't make them either. I have asked them for alternatives but no response so far.
I'm guessing that somebody offers a 2 pole 50 that has a 100MA GFP trip but not in a plug-in style breaker. If somebody does I can just put it downstream of the existing breaker. If not how does a marina comply with NEC 555.3?