The FRN0.75E1S-4C is a Fuji Electric FRENIC Series high performance inverter sized for a 0.75 kW three-phase induction motor on a 400 V supply. The 'E' in the order code marks it as the high-performance/compact variant of the FRENIC family, suited for applications requiring tighter speed regulation or torque control than a general-purpose drive delivers.
No second-source cross-reference exists within the FRENIC family at this exact power and voltage point — the order code defines the variant.
The 0.75 kW nominal applied motor rating defines the maximum continuous motor load this drive can handle under normal duty. For a 400 V three-phase supply, that corresponds to roughly 2.2 A output current — the drive is sized for small pumps, fans, conveyors, or spindle motors in that power class. The IP20 enclosure is the standard industrial cabinet-mount variant.