{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LC3F400U7","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LC3F400U7","canonicalUrl":"https://aoctrl.com/schneider/LC3F400U7","factsUrl":"https://aoctrl.com/api/mcp/products/LC3F400U7","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys F LC3F400U7, pre-wired star delta starter, 3 x 3P, 400 A AC-3 at ≤440 V, 240 V AC 50/60 Hz coil, plate mount.","salesMarkdown":"The LC3F400U7 is a pre-wired TeSys F star delta starter from Schneider Electric. It's built for motor control in AC-3 duty — the category for squirrel-cage motors during starting, running, and plugging. Rated at 400 A operational current at ≤440 V AC, it handles motor loads up to 185 kW on 220/230 V, 315 kW on 380/400 V, 355 kW on 415 V, and 375 kW on 440 V, all at 50/60 Hz. This isn't a bare contactor — it's a pre-assembled star delta assembly with three contactors (star, line, delta), pre-wired for a reduced-voltage start. The contact composition is 3 x 3 NO power poles, with auxiliary contacts: 1 NC and 1 NO on the star contactor, 2 NC and 1 NO on the line contactor, and 1 NC and 2 NO on the delta contactor. That's enough auxiliaries for interlocking and status feedback without adding blocks. Making capacity is 4000 A, so it handles the inrush when closing into a stalled motor. Rated insulation voltage is 1000 V per IEC 60947-4-1 and 1500 V per VDE 0110 group C, so it's comfortable in 690 V systems with margin. Control circuit is 240 V AC 50/60 Hz, with a hold range of 0.85 to 1.1 Uc and dropout between 0.35 and 0.55 Uc. Inrush power is 1075 VA at 20 °C — your control transformer needs to handle that peak. That's a rugged unit for frequent starting applications like conveyors or compressors. Heat dissipation is 14 W — negligible for panel thermal calculations. This is a plate-mount assembly — no DIN rail. Dimensions are substantial: 28.5 inches wide, 10.9 inches deep, 7.09 inches tall. That's a big footprint; plan the backplate layout accordingly. Power connections are via bolted lugs or busbars (30 x 5 mm busbar cross-section recommended), with M10 bolts. Control wiring uses screw clamp terminals accepting 1 to 4 mm² flexible or solid wire. Keep it inside a panel. Compliance is solid: the starter meets IEC 60947-4-1, IEC 60947-1, EN 60947-4-1, EN 60947-1, and JIS C8201-4-1. That covers most global panel standards. Associated fuse rating is 500 A gG or 400 A aM at ≤440 V — use that for your short-circuit protection coordination.","metaTitle":"LC3F400U7 TeSys F Star Delta Starter, 400 A AC-3, 240 VAC Co","metaDescription":"LC3F400U7 is a TeSys F pre-wired star delta starter for motor control up to 375 kW at 440 V. Rated 400 A AC-3, breaking capacity 3200 A. Active production. Plate mount.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"10.9 in (276 mm)","Range":"TeSys","Width":"28.5 in (725 mm)","title":"LC3F400U7","Height":"7.09 in (180 mm)","Category":"18401-WORLD SERVICE PARTS(CTR ACCESS)","Standards":"JIS C8201-4-1 IEC 60947-4-1 IEC 60947-1 EN 60947-4-1 EN 60947-1","description":"TeSys F - star delta starter - 3 x 3P (3 NO) - 400 A - 240 V AC coil","Product name":"TeSys F","Starting time":"20 s","Motor power kW":"185 kW 220/230 V AC 50/60 Hz 315 kW 380/400 V AC 50/60 Hz 355 kW 415 V AC 50/60 Hz 375 kW 440 V AC 50/60 Hz","Operating time":"100...170 ms opening 40...75 ms closing","lifecycle_stage":"current","Heat dissipation":"14 W","Mounting Support":"Plate","Device short name":"LC3F","Interlocking type":"Without start delta mechanical interlock","Poles description":"3 x 3P","Tightening torque":"Control circuit 10.6 lbf.in (1.2 N.m) Power circuit 309.8 lbf.in (35 N.m)","Inrush power in VA":"1075 VA 40...400 Hz cos phi 0.9 (at 68 °F (20 °C))","Operating altitude":"9842.52 ft (3000 m) without derating","Device presentation":"Pre-wired","Control circuit type":"AC 50/60 Hz","Utilisation category":"AC-3","Contactor application":"Motor control","Mechanical durability":"10 Mcycles","Mechanical robustness":"Shocks contactor closed15 Gn for 11 ms Vibrations contactor closed5 Gn, 5...300 Hz Shocks contactor open6 Gn for 11 ms Vibrations contactor open1.5 Gn, 5...300 Hz","Nbr. of units in pkg.":"1","Associated fuse rating":"500 A gG 400 A aM <= 440 V","Maximum operating rate":"2400 cyc/h 131 °F (55 °C)","Connections - terminals":"Control circuit: screw clamp terminals 1 0.002...0.006 in² (1...4 mm²) - cable stiffness: flexible with cable end Control circuit: screw clamp terminals 2 0.002...0.004 in² (1...2.5 mm²) - cable stiffness: flexible with cable end Control circuit: screw clamp terminals 1 0.002...0.006 in² (1...4 mm²) - cable stiffness: flexible without cable end Control circuit: screw clamp terminals 2 0.002...0.006 in² (1...4 mm²) - cable stiffness: flexible without cable end Control circuit: screw clamp terminals 1 0.002...0.006 in² (1...4 mm²) - cable stiffness: solid without cable end Control circuit: screw clamp terminals 2 0.002...0.006 in² (1...4 mm²) - cable stiffness: solid without cable end Power circuit: bar 2 - busbar cross section: 30 x 5 mm Power circuit: bolted connection Power circuit: lugs-ring terminals 2 0.2 in² (150 mm²)","IP degree of protection":"IP20 front face with shrouds IEC 60529 IP20 front face with shrouds VDE 0106","Rated breaking capacity":"3200 A conforming to IEC 60947-4-1","Connections Bolt Diameter":"M10","Product or Component Type":"Star delta starter","Irms rated making capacity":"4000 A IEC 60947-4-1","[Uc] control circuit voltage":"240 V AC 50/60 Hz","Auxiliary contact composition":"1 NC KM1 star contactor 1 NO KM1 star contactor 2 NC KM2 line contactor 1 NO KM2 line contactor 1 NC KM3 delta contactor 2 NO KM3 delta contactor","[Ui] rated insulation voltage":"1000 V IEC 60947-4-1 1500 V VDE 0110 group C","Control circuit voltage limits":"Operational: 0.85...1.1 Uc at 40...400 Hz (at Drop-out: 0.35...0.55 Uc at 40...400 Hz (at <131 °F (55 °C))","Power Pole Contact Composition":"3 x 3 NO","[Ie] rated operational current":"400 A (at <131 °F (55 °C)) at <= 440 V AC AC-3 for power circuit","[Ue] rated operational voltage":"Power circuit <= 1000 V AC 16 Hz 2/3...200 Hz","Hold-in power consumption in VA":"15 VA 40...400 Hz cos phi 0.9 (at 68 °F (20 °C))","Ambient Air Temperature for Storage":"-76...176 °F (-60...80 °C)","Ambient air temperature for operation":"23...131 °F (-5...55 °C) -40...158 °F (-40...70 °C) at Uc","[Uimp] rated impulse withstand voltage":"8 kV coil not connected to the power circuit","[Icw] rated short-time withstand current":"3600 A 104 °F (40 °C) - 10 s 2400 A 104 °F (40 °C) - 30 s 1700 A 104 °F (40 °C) - 1 min 1200 A 104 °F (40 °C) - 3 min 1000 A 104 °F (40 °C) - 10 min","[Ith] conventional free air thermal current":"500 A 104 °F (40 °C)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/0c11174b5bac3d217f0d3a03fcb8cf01.pdf","sourceUrl":"https://www.se.com/us/en/product/LC3F400U7/tesys-f-star-delta-starter-3-x-3p-3-no-400-a-240-v-ac-coil/"},"ai":{"faq":[{"question":"What are the key ratings I need to check for fit?","answer":"Rated operational current is 400 A at ≤440 V AC in AC-3 duty. Motor power depends on voltage: 185 kW at 230 V, 315 kW at 400 V, 355 kW at 415 V, 375 kW at 440 V. Control coil is 240 V AC 50/60 Hz. Breaking capacity is 3200 A, making capacity 4000 A."},{"question":"What mounting does this require?","answer":"Plate mount only — no DIN rail clip. Dimensions are 28.5 x 10.9 x 7.09 inches. Power connections use M10 bolts or 30 x 5 mm busbars. Control wiring uses screw clamp terminals for 1–4 mm² wire."},{"question":"What standards does it comply with?","answer":"It complies with IEC 60947-4-1, IEC 60947-1, EN 60947-4-1, EN 60947-1, and JIS C8201-4-1. Rated insulation voltage is 1000 V per IEC and 1500 V per VDE 0110 group C."},{"question":"What auxiliary contacts are included?","answer":"The star contactor has 1 NC + 1 NO, the line contactor has 2 NC + 1 NO, and the delta contactor has 1 NC + 2 NO. That's 4 NC and 4 NO total — no add-on blocks needed for standard interlocking."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LC3F400U7","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/schneider/LC3F400U7 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:47:38.189Z","lastPublished":"2026-07-22T19:47:38.189Z","indexable":true}}