{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"VFD550B43C","brand":"Delta","brandSlug":"delta","productSlug":"VFD550B43C","canonicalUrl":"https://aoctrl.com/delta/VFD550B43C","factsUrl":"https://aoctrl.com/api/mcp/products/VFD550B43C","rawCanonicalId":null},"summary":{"shortDescription":"Delta B-series VFD550B43C variable frequency drive, 460V three-phase, 75HP (55kW), fan-cooled, 50 kg.","salesMarkdown":"## 460V three-phase, 75HP — the drive class in one line The Delta VFD550B43C sits in the B-series variable-frequency drive line at the 460V three-phase tier (cites:) with a 75HP (55kW) motor rating (cites:), so it lands squarely in the heavy industrial / HVAC-pump / large-fan duty where 460V three-phase mains feed induction motors in that horsepower band. The \"C\" version-type suffix distinguishes the drive's variant tier within the B-series family (cites:,cites:,cites:) without changing the core class of unit. ## Overload endurance and stall-prevention window The drive carries 150% of rated current for 1 minute as its overload endurance figure (cites:), which is the standard \"heavy- industrial\" short-time rating rather than a continuous duty — a buyer matching this drive to a high-inertia load (large fan, compressor) needs to keep the worst-case acceleration current inside that 1-minute window or the drive will trip on its own thermal envelope. The stall-prevention level is configurable from 20 to 250% of rated current (cites:), giving the commissioning engineer room to set the trip curve to the actual motor's locked-rotor draw rather than relying on the factory default.","metaTitle":"Delta VFD550B43C AC Drive, 460V, 75HP (55kW), B-series","metaDescription":"Delta VFD550B43C B-series AC drive, 460V three-phase, 75HP (55kW), fan-cooled, current production. Quoted to order against the BOM.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["AC Drive (VFD) 480V"],"specifications":{"43":"460V Three phase","550":"75HP(55kW)","B":"B series","C":"Version Type","VFD":"Variable Frequency Drive","title":"VFD550B43C","Weight":"50 Kg","Product No.":"VFD550B43C","description":"AC Drives","Product Type":"AC Drive Motors","Voltage Class":"460V","Cooling Method":"Fan Cooled","Skip Frequency":"Three zones, settings range 0.1-400Hz","Shipping Weight":"52 Kg","lifecycle_stage":"current","Ambient Humidity":"Below 90% RH (non-condensing)","Overload Endurance":"150% of rated current for 1 minute","Estimated Lead Time":"Usually ships in 1-10 working days.","Stall Prevention Level":"20 to 250%, setting of rated current","Frequency Setting Resolution":"0.01Hz","Storage/ Transportation Temperature":"-20 C to 60 C"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4,634.00","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/291df42255924d9877f5c5fc750a3a51.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is VFD550B43C's listed 43 designation on this AC Drive line?","answer":"The \"43\" in the order code marks the 460V three-phase voltage class (cites:), which places the drive on a 460V three-phase mains feed in the Delta B-series AC drive line (cites:)."},{"question":"What is VFD550B43C's listed 550 designation on this AC Drive line?","answer":"The \"550\" in the order code marks the 75HP (55kW) motor rating (cites:), placing the drive at the heavy-industrial end of the 460V three-phase B-series line — sized for large pumps, fans, and compressors that draw up to 55 kW at the shaft."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/delta/VFD550B43C","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/delta/VFD550B43C 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}}