Leviton’s SMC’s do not have fire ratings. The enclosures are cULus listed under file E109712. Do not mount the Structured Media Center IN a designated firewall. The following are examples of a fire-rated wall:
Wall between two apartments or condos
Wall between garage and living areas
Structured Media Centers can SURFACE mount ON a fire-rated wall (but wiring usually must enter in conduit). Check with local codes and inspectors.