{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"FR-A840-37-1","brand":"Mitsubishi Electric","brandSlug":"mitsubishi","productSlug":"FR-A840-37-1","canonicalUrl":"https://aoctrl.com/mitsubishi/FR-A840-37-1","factsUrl":"https://aoctrl.com/api/mcp/products/FR-A840-37-1","rawCanonicalId":null},"summary":{"shortDescription":"Mitsubishi Electric FR-A840-37-1 AC Drive (VFD) 480V, 50 HP, 37 kW, three-phase output, 0.2-590 Hz, IP00, Modbus RTU, RS-232/422/485.","salesMarkdown":"## 50 HP / 37 kW VFD for 480V three-phase motor loads The Mitsubishi Electric FR-A840-37-1 is a 50 HP (37 kW) variable-frequency drive designed for three-phase induction motors on 380–500 VAC supply lines — the 400/415/480 V range covers most European and North American industrial mains. Its output frequency spans 0.2 to 590 Hz, which means it can run a standard 50/60 Hz motor across its full speed range and still have headroom for high-speed spindle applications up to 590 Hz without an external frequency doubler. The IP00 enclosure rating means this drive is intended for installation inside a panel or cabinet — it is not a stand-alone NEMA 1 or 4X unit, so the panel builder must provide the environmental seal and cooling airflow. ## Fieldbus and analog feedback for process integration Built-in Modbus RTU on RS-232/422/485 gives the drive a direct serial link to a PLC or SCADA host without an add-on communication card — the integrator can map speed setpoint, run/stop, and status registers over the same two-wire pair. A single analog output (0–10 VDC) is available for sending motor speed, output current, or DC bus voltage to a panel meter or remote display — useful for commissioning checks without opening the HMI screen.","metaTitle":"Mitsubishi FR-A840-37-1 AC Drive 480V, 50 HP, 37 kW","metaDescription":"Mitsubishi Electric FR-A840-37-1 AC Drive (VFD) 480V, 50 HP / 37 kW, IP00, Modbus RTU. Active production — quoted to order. Request RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["AC Drive (VFD) 480V"],"specifications":{"title":"FR-A840-37-1","Product No.":"FR-A840-37-1","description":"Variable Speed/Frequency Drive (VSD/VFD) / Inverter with FM term","Product Type":"Variable Speed/Frequency Drive (VSD/VFD) / Inverter with FM term","Analog outputs":"1 x analog output (0-10Vdc) (signal output)","Shipping Weight":"43 Kg","lifecycle_stage":"current","Rated power (HP)":"50HP","Network frequency":"(output) 0.2-590 Hz","Estimated Lead Time":"1 - 10 working days.","Supply voltage (AC)":"380Vac-500Vac (400Vac / 415Vac / 480Vac)","Degree of protection":"IP00","Output Specification":"Three-Phase","Communication protocol":"Modbus RTU","External communications":"RS-232/422/485","Applicable motor capacity (kW)":"37 kW"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$8,276.00","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/7cdd4c8b59ba8193ce389a01b4313ba1.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the FR-A840-37-1 used for?","answer":"It is a variable-frequency drive for three-phase AC motors up to 50 HP (37 kW) on 380–500 VAC mains, providing adjustable speed from 0.2 to 590 Hz for pumps, fans, conveyors, and machine spindles."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/mitsubishi/FR-A840-37-1","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/mitsubishi/FR-A840-37-1 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}