Transformer Loads

[Joe M]

Can you feed multiple panels from the same transformer. I am under the impression that you can only tap the load side one time.

Also if that panel has a main lug do you need a disconnect.

Thanks Joe

 

[jim dungar]

You can run conductors to multiple loads, however they must all start at the transformer. The conductors need to be protected which usually requires them to terminate in a single overcurrent device.

Everything depends on which part of article 240, you are using for sizing and locating your protective devices.

 

[RICK NAPIER]

Yoy can feed multiple panels with seperate conductors(taps). This was made clearer in the 2008 NEC with change in
240.21(C) "A set of conductors feeding a single load, or each set of conductors feeding seperate loads, shall be permitted to be connected to a transformer secondary"

 

[Joe M]

Transformer Loads

Thanks For the help.

 

[augie47]

In regard to "main lug" vs "main breaker/fuses" you need to look at the various conditioons listed under 240.21(C). Some applications require you to terminate in a "single device", some applications allow a "series of devices".