Adding fuses/circuits...69 a body?

Here is the links to the 30 amp circuit breaker I used and the fuse blocks

/d/B01H3DKGFK?psc=1&ref=yo_pop_mb_yo_pop_mb_pd_t2

/d/B01H3DKGFK?psc=1&ref=yo_pop_mb_yo_pop_mb_pd_t2