I have a 40 HP motor, 480 volts, with a TIME DELAY FUSE, 50 amps, but I would like to make sure that this is the right fuse, could you please send me a copy of the table 430 to see with fuse is recommended for this motor

If you are doing work like this a copy of the NEC should be standard issue.

Besides, this is not a free NEC web site. It is a DIY home improvement message board.
If I may ask, what made you put "national electric code free online" in the title line? Was there something that suggested this was a free NEC site?

Probably from this sticky posted at the top of this forum:

Reading the NFPA 70 etc. National Electric Code Online

Follow the link to the NFPA website, follow the instructions to register, and then one can chsoe the applicable edition of the NEC.