class 2 definition

[juanh50]

What is considered a class 2 rating?

 

[charlie b]

Re: class 2 definition

I don't have my book handy, but what I recall is "less than 30 volts, less than 1000 VA."

 

[volt101]

Re: class 2 definition

Class 2 Circuit. The portion of the wiring system between the load side of a Class 2 power source and the connected equipment. 
 Due to its power limitations, a Class 2 circuit considers safety from a fire initiation standpoint and provides acceptable protection from electric shock.

[ September 02, 2004, 04:13 PM: Message edited by: don_resqcapt19 ]

 

[charlie b]

Re: class 2 definition

I remember seeing that definition, but it did not help me understand. It defines ?class 2 circuit? by presuming you already know what a ?class 2 power source? is. All they need to add in the 2005 version is a definition of a ?class 2 power source? as ?a source that supplies a class 2 circuit,? and the circular definition will be complete.

 

[juanh50]

Re: class 2 definition

Originally posted by charlie b:
I remember seeing that definition, but it did not help me understand. It defines ?class 2 circuit? by presuming you already know what a ?class 2 power source? is. All they need to add in the 2005 version is a definition of a ?class 2 power source? as ?a source that supplies a class 2 circuit,? and the circular definition will be complete.

 

[juanh50]

Re: class 2 definition

Thanks for your help, but I have another quick question for you. Is class 2 a UL or NEC standard?

 

[pierre]

Re: class 2 definition

Take a look at 725.41(A).
A class 2 circuit is defined by it's source, which has to be a listed product.

A class 2 'rating' is defined by the UL listing.