The Fuji Electric FRN22G1S-4C is a FRENIC Series High Performance Inverter rated for 22 kW nominal motor load on a three-phase 400V supply. The 'G' in the order code marks it as the high-performance, multifunction variant — the one you spec when the application demands full torque control down to standstill, not just a basic V/Hz pump drive. Enclosure is the basic type: IP20 on the body, IP00 on the heatsink (meaning it expects a clean panel environment and needs the heatsink clear for airflow).
The 22 kW rating is the nominal applied motor — size the inverter for the motor nameplate, not the driven load's peak demand. On a 400V three-phase supply, this covers a standard 22 kW four-pole induction motor (roughly 44 A full-load current at 400V, though check the motor's own FLC). The 'G' series delivers high starting torque and closed-loop vector control capability, so it's appropriate for conveyors, extruders, hoists, or any application where the load changes quickly and the drive needs to hold speed through the transient.