The Fuji FRN025AR1L-5U is a FRENIC-HVAC variable frequency drive rated for 3-phase 575 V input, 25 HP output, housed in a UL/NEMA Type 12 enclosure. That Type 12 rating means the drive is built for indoor environments where dust, dirt, and dripping non-corrosive liquids are present — typical for HVAC mechanical rooms, pump houses, and light industrial air handling units. No need for an additional enclosure in most indoor machine rooms; the drive itself carries the ingress protection.
The FRN025AR1L-5U ships as a complete FRENIC-HVAC drive in a UL/NEMA Type 12 enclosure. The kit includes the drive unit with the factory-installed keypad and the enclosure assembly. No holes in the box — the drive arrives ready for line and motor connections. Verify the nameplate against the PO before racking: the order code decodes to 575 V, 25 HP, Type 12.