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#8229 - 03/13/02 04:12 AM line=primary, load=secondary
Redsy Offline

Registered: 03/28/01
Posts: 2138
Loc: Bucks County PA
I heard someone refer to the line and load terminals of a CB as primary side and secondary side?
Is this common terminology?

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#8230 - 03/13/02 05:04 AM Re: line=primary, load=secondary
WARREN1 Offline

Registered: 05/09/01
Posts: 184
Loc: Greenville, SC, USA
Don't know if it is common or not, but I have used that terminology when discussing lines and loads with Lead Engineers and some contractors.

#8231 - 03/13/02 08:41 AM Re: line=primary, load=secondary
Joe Tedesco Offline

Registered: 10/07/00
Posts: 3325
Loc: Boston, Massachusetts USA

The UL Directory "White Book" includes the following statement under the heading of "LINE - LOAD CONNECTIONS"

"Line and load markings on a circuit breaker are intended to limit connections thereto as marked."

Watch out four for backfed installations, if you need more information from the "White Book" let me know.

[This message has been edited by Joe Tedesco (edited 03-13-2002).]
Joe Tedesco, NEC Consultant

#8232 - 03/14/02 06:59 AM Re: line=primary, load=secondary
The Watt Doctor Offline

Registered: 12/23/01
Posts: 443
Loc: Mont Belvieu, TX
Never heard of it relative to breakers. Always hear it relative to transformers.

The Watt Doctor
Altura Cogen
Channelview, TX


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