Read 2002 NEC 440.52(A)(3) this requires the makers to state fuses or inverse time breaker, if the overcurrent is part of the motor current protection
Now look at table 430.52 and you will see that fuses and inverse breakers react differently.
Units still come with a specification as to minimum circuit ampacity as per 440.4(B) and overcurrent device requirement as per 440.52(A)(3)
But I agree if the unit does not state a specific type of overcurrent device it is up to you.
[This message has been edited by iwire (edited 03-17-2003).]
