Circuit protection and SCR Fuses

I have a 200A load and that is how I wired it.
The SCR Fuses that came with the 240A rated SCR are rated 350A.
The SCR fuses are 1 cycle fast fuses.

It is still okay to use the 250A CB protection (load x 1.25) with 350A SCR fuses, because the SCR fuses are rated for short circuit protection (spikes) only?

may i suggest that you post this question on www.mikeholt.com.
this is an electrical website.

Maybe jaref will reply.
james

I can't speak to California, but that setup is perfectly legal under the Canadian electrical code.
I second James's comment, you need to consult someone who is familiar with your NEC requirements.

Following this thread. This is a good question. In my line of work, I was trained to put two different types of fuses on our SCR circuits. One will be a time-delayed, normally-sized fuse for simple overload situations and the other is a very fast blow, SCR-rated fuse to protect the SCR in transient or short circuit situations. It made sense to me, but was never sure if that was right.

The circuit breaker is protecting the wires and the SCR fuse is protecting, well, the SCR. Nothing wrong with that as long as your wire is rated for 240A and the CB is at the beginning.