{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"VFD750C43A-21","brand":"Delta","brandSlug":"delta","productSlug":"VFD750C43A-21","canonicalUrl":"https://aoctrl.com/delta/VFD750C43A-21","factsUrl":"https://aoctrl.com/api/mcp/products/VFD750C43A-21","rawCanonicalId":null},"summary":{"shortDescription":"Delta C2000 series variable frequency drive VFD750C43A-21, 75 kW normal duty / 55 kW heavy duty, 400 V class, Frame D, 97.8 % efficient.","salesMarkdown":"## What the drive covers on the motor shaft The Delta VFD750C43A-21 is a C2000-series AC drive rated for a 75 kW motor in normal duty and 55 kW in heavy duty, equivalent to 100 hp and 75 hp respectively, so it spans the line between standard constant-torque loads (pumps, fans, conveyors) and the higher inrush that constant-torque machinery draws at start. It runs on a 400 V class supply — 323 to 528 VAC operating range — with 47 to 63 Hz input tolerance, so it rides through weak feeds and tolerates generator-fed panels without nuisance trips. ## Current, capacity, and efficiency at the output The drive delivers 150 A normal / 143 A heavy rated output current at 120 kVA normal / 114 kVA heavy, which sets the upstream breaker and cable sizing rather than the motor nameplate alone. Efficiency sits at 97.8 %, so above a few kW shaft output the cooling load on the cabinet is dominated by the drive's own losses, not the motor — a heat-exchanger or forced-air panel design should be planned against the 2.2 % loss budget for continuous duty. Input current is rated 157 A normal / 149 A heavy, which is the figure the panel builder uses to size the feeder breaker and the line reactor, since it includes the rectifier inrush component the motor-side figure does not. ## Sourcing posture and lead-time expectation Lifecycle is recorded as current, with no successor on the record; typical lead time runs 1 to 10 working days through the distribution channel, so a production BOM line can be closed against a confirmed quote without carrying a safety stock buffer on the drive itself.","metaTitle":"Delta VFD750C43A-21 C2000 VFD, 75 kW, 400 V class","metaDescription":"Delta C2000 VFD750C43A-21 AC drive, 75 kW normal / 55 kW heavy, 400 V class, 97.8 % efficient. Quoted to order through independent distribution.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["AC Drives (VFD)"],"specifications":{"title":"VFD750C43A-21","Weight":"38.5 Kg","Frame Size":"D","Product No.":"VFD750C43A-21","description":"Control Drives C2000 Series","Product Type":"Control Drive C2000 Series","Efficiency (%)":"97.8","Shipping Weight":"41 Kg","lifecycle_stage":"current","Input Current (A)":"Normal (157) / Heavy (149)","Dimensions (LxWxH)":"33cm x 27.5cm x 55cm","Estimated Lead Time":"Usually ships in 1 - 10 working days.","Frequency Tolerance":"47 ~ 63Hz","Operating Voltage Range":"323 to 528 Volts AC","Rated Output Current (A)":"Normal (150) / Heavy (143)","Rated Output Capacity (kVA)":"Normal (120) / Heavy (114)","Applicable Motor Output (HP)":"Normal (100) / Heavy (75)","Applicable Motor Output (kW)":"Normal (75) / Heavy (55)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4,697.00","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/2dbd18a592a6449602cb4bb8c03c0b7c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What frame size is VFD750C43A-21?","answer":"It is built in Frame D, with body dimensions 33 cm × 27.5 cm × 55 cm — the frame designation drives the mounting hole pattern and the heatsink clearance, not just the cosmetic outline."},{"question":"What's the closest functional second source if VFD750C43A-21 is unavailable?","answer":"The next-larger C2000 sibling VFD900C43A-21 covers 90 kW normal / 75 kW heavy at Frame E — stepping up rather than across, with a heavier 64.8 kg chassis and a 180 A normal output rating. It fits the same 400 V supply window and the same control topology, but the enclosure cutout, mounting pattern, and feeder sizing change because it is a different frame."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/delta/VFD750C43A-21","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/VFD750C43A-21 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}}