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#7677 - 02/15/02 01:09 PM Fifth terminal  
electrician02125  Offline
Member
Joined: Feb 2001
Posts: 89
Can someone out there explain to me the term fifth terminal with respect to meter sockets.

Why would you need it or not ?

Depending on the month around my neck of the woods, you may need it or not.

I am in the maintenance end of the trade and
try to stay current on residential as much as possible.


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#7678 - 02/15/02 02:29 PM Re: Fifth terminal  
Redsy  Offline
Member
Joined: Mar 2001
Posts: 2,056
Bucks County PA
Our utility (PECO) requires a 5th jaw to meter an existing 120 volt service, and also to meter a single phase 208/120 service supplied from a 3 phase system. Although I don't know how it functions, according to our utility co. drawings, it provides a neutral connection to the meter. Your utility company should have an installation guide book which will include drawings.
Maybe someone else here can explain the function.


#7679 - 02/16/02 04:16 PM Re: Fifth terminal  
CanadianSparky  Offline
Member
Joined: Mar 2001
Posts: 85
Alberta Canada
We use the fifth jaw for digital meters its a piece of #10 connected directly to the neutral.


#7680 - 02/20/02 03:40 PM Re: Fifth terminal  
motor-T  Offline
Member
Joined: Nov 2001
Posts: 280
Girard, Ohio, USA
According to my PoCo on single phase its for a 120V pick-up for some meters they use, I didnt pursue whether thay were digital on not could well be.



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