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Fifth terminal #7677 02/15/02 01:09 PM
Joined: Feb 2001
Posts: 89
E
electrician02125 Offline OP
Member
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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Re: Fifth terminal #7678 02/15/02 02:29 PM
Joined: Mar 2001
Posts: 2,056
R
Redsy Offline
Member
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.

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

Re: Fifth terminal #7680 02/20/02 03:40 PM
Joined: Nov 2001
Posts: 280
M
motor-T Offline
Member
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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