Drive Selection Memo — 18.5 kW VFD for 400 V Class Motors
The Mitsubishi FR-A840-18.5K-1 is a current-production three-phase VFD rated for 18.5 kW motor loads at 400 V input class, delivering 38 A continuous output and 29 kVA apparent power on a three-phase 380–500 V supply. Built for drive-controlled induction and synchronous motors in applications that demand torque accuracy and ambient heat resistance — the same frame that holds up in rolling-mill auxiliaries. RS-232/422/485 serial comes standard for Modbus RTU or Mitsubishi protocol loop integration.
Sourcing & Lifecycle — Active BOM Line
Lead time runs 1–10 working days; quoted to order against RFQ. The supply channel is standard distribution — no surplus or broker dependency. Compliance documentation covers CE, UL, cUL, and RoHS 6 — sufficient for CE-marked panels and UL 508A builds without separate certification work.