The Fuji FRN015AR1M-4U is a FRENIC-HVAC series variable frequency drive sized for a 15 HP, 3-phase 460 V motor load. It ships in a UL/NEMA Type 1 enclosure, which means it's rated for indoor use where the environment is clean and dry — no washdowns, no dust. This is a standard panel-mount drive for HVAC fan and pump applications, not a sealed unit for the grease pit.
The 15 HP rating at 460 V three-phase tells you the drive's continuous output capability for a standard induction motor. That's the number to match against your nameplate. The UL/NEMA Type 1 enclosure means you can mount it inside a control panel without additional drip shields, but it's not suitable for outdoor or washdown locations — keep it behind a gland plate.