DOUBLE TAP AT TRANSFER SWITCH

[dannyrzk]

good, we have one transfer switch and two different panel to be served by the generator. If it possible to have two different size feeders one set of #3 and one set of #500 mcm on the same lugs of the transfer switch. Please advice if this can lead to some problem?

thanks

 

[tkb]

good, we have one transfer switch and two different panel to be served by the generator. If it possible to have two different size feeders one set of #3 and one set of #500 mcm on the same lugs of the transfer switch. Please advice if this can lead to some problem?

thanks

Not unless the lugs are lasted for two cables per lug in the sizes that you mentioned.
You will have to replace the lugs with double barrel lugs with the correct size range.

 

[iwire]

good, we have one transfer switch and two different panel to be served by the generator. If it possible to have two different size feeders one set of #3 and one set of #500 mcm on the same lugs of the transfer switch. Please advice if this can lead to some problem?

thanks

There are ways to do that.

If the overcurrent protection is sized for the 500kcmil then the 3AWGs will be tap conductors and would have to comply with one of sections in 240.21

Or is this transfer switch the service disconnecting means?

 

[iwire]

Not unless the lugs are lasted for two cables per lug in the sizes that you mentioned.
You will have to replace the lugs with double barrel lugs with the correct size range.

:thumbsup:

Whoa, thanks TKB, I had overlooked the part about using the same lugs.:ashamed1:

 

[dannyrzk]

:thumbsup:

Whoa, thanks TKB, I had overlooked the part about using the same lugs.:ashamed1:

thank you both, TKB I understand we have the double lugs correctly, that was good.
Iwiere we are within 10 ft of the load serve by the #3awg wires.

Thank you so much

 

[tkb]

:thumbsup:

Whoa, thanks TKB, I had overlooked the part about using the same lugs.:ashamed1:

Thats what I'm here for. :lol: