The Fuji FRN020AR1L-5U is a FRENIC-HVAC drive rated for 575V three-phase input, 20HP output, housed in a NEMA Type 12 enclosure. This is the dedicated HVAC variant of the FRENIC family — built for fan, pump, and compressor duty cycles where the enclosure keeps dust and dripping water out of the power section.
575V three-phase input matches North American 480V and 600V class systems — common in commercial HVAC and industrial plant distribution. The 20HP output rating is the motor nameplate limit at the drive's rated voltage; if you are running a 15HP motor, this drive has headroom, but the VFD's own overload profile (typically 110% for 60 seconds on HVAC drives) governs the actual trip point. NEMA Type 12 means it is suitable for indoor environments with dust, lint, and non-corrosive dripping liquids — think mechanical rooms, rooftop units behind a weatherproof barrier, or factory floors without washdown.