tap conductors nonfuse to condensor

[howardrichman]

If I'm to use larger (10GU) feeder to an A/C condensor, then use 12 conductor wire from the disconnect to a A/C condensor; is that allowable w/o fusing the whip to the condensor w/20A fuses if I'm using a 20A HACR breaker feeding the #10 feeder? Does a tap rule apply in this case. There is to be an inspection.

Thanks;
HR...

 

[jumper]

If you have a 20 amp breaker than I believe you can splice a 12# to a 10# without a problem. This assumes your wire size meets your MCA.

 

[augie47]

If you are protecting the circuit with a 20 amp breaker at the supply end, then the #12 would be fine as it is protected,
Just for discussions sake, do you know the Minimum Circuit Amps and the Maximum Overcurrent Protection values for the unit ??

 

[howardrichman]

The feeders(#10-2 romex) is fed w/a dp20A brkr, the unit is: Max fuse-20a; min ckt. cap-17A.

Thanks for reply;
HR...

 

[augie47]

Hopefully, the unit is marked to accept HACR breakers also and not just "fuse". If so you are fine.
Think of the set-up as one installed for voltage drop. On over sized conductor for a portion of the run then reduced to the "normal" ampacity conductor for another portion.

 

[howardrichman]

That would be logical, as long as the 12 conductor tap to the unit is within code.

HR...

 

[petersonra]

This is not a tap, since they are not tap conductors.

Check the NEC defintion of a tap.