{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LC1F1857Q7","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LC1F1857Q7","canonicalUrl":"https://aoctrl.com/schneider/LC1F1857Q7","factsUrl":"https://aoctrl.com/api/mcp/products/LC1F1857Q7","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys F, LC1F1857Q7, 3-pole contactor, 275 A rated operational current, 90 kW at 400 V AC-3, 380 V AC 40-400 Hz coil, end-of-life.","salesMarkdown":"## TeSys F Contactor — 275 A, 90 kW at 400 V The Schneider Electric LC1F1857Q7 is a 3-pole TeSys F contactor rated for 275 A operational current (AC-3 at ≤440 V) and switches motor loads up to 90 kW at 380–400 V AC-3, or 100 kW at 415 V and 440 V. The 380 V AC coil draws 1070 VA inrush and holds at 9.9 VA. This is a heavy-duty frame sized for induction furnace duty (AC-1, AC-3, AC-4 utilisation categories) and mounts to a plate, not a DIN rail. The 275 A AC-3 rating at ≤440 V is the load-bearing figure for motor switching — that is the current the contactor handles during starting and running of a squirrel-cage motor. For resistive loads (AC-1), the thermal current Ith is 275 A at 50 Hz, with 0.33 mOhm average impedance and 25 W dissipation per pole. The rated breaking capacity is 1480 A per IEC 60947-4-1, which governs fault interruption. Insulation voltage is rated 1000 V per IEC 60947-4-1 and 1500 V per VDE 0110 Group C, giving headroom for 690 V systems. Designed and tested to IEC 60947-4-1, IEC 60947-1, EN 60947-1, EN 60947-4-1, and JIS C8201-4-1. Overvoltage category III. IP2X on the front face with shrouds per IEC 60529 and VDE 0106. Protective treatment TH for tropical environments. Plate-mounted — no DIN-rail clip. Power circuit uses bolted bar connections (2 x 25 x 3 mm) or ring terminals up to 150 mm². Control circuit uses screw clamp terminals accepting 1–4 mm² flexible or solid. Tightening torque: 18 N·m on the power circuit, 1.2 N·m on the control circuit. Mechanical durability is 10 million cycles; maximum operating rate is 2400 cycles per hour at 55 °C.","metaTitle":"Schneider LC1F1857Q7 TeSys F Contactor, 275 A, 90 kW, EOL","metaDescription":"Schneider Electric LC1F1857Q7 TeSys F contactor, 275 A rated, 90 kW at 400 V AC-3. End-of-life status; sourced to order against RFQ. IEC 60947-4-1, 3-pole, 380 V AC coil.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Contactors"],"specifications":{"Depth":"7.1 in (181 mm)","Range":"TeSys","Width":"6.6 in (168.5 mm)","Height":"6.9 in (174 mm)","Category":"22336-CTR,F-LINE,AC,OPEN,NONREV","Standards":"IEC 60947-4-1 IEC 60947-1 EN 60947-1 JIS C8201-4-1 EN 60947-4-1","Motor power kW":"90 kW at 380...400 V AC 50/60 Hz (AC-3) 100 kW at 415 V AC 50/60 Hz (AC-3) 100 kW at 440 V AC 50/60 Hz (AC-3) 110 kW at 500 V AC 50/60 Hz (AC-3) 110 kW at 660...690 V AC 50/60 Hz (AC-3) 55 kW at 220...230 V AC 50/60 Hz (AC-3) 33 kW at 400 V AC 50/60 Hz (AC-4)","Operating time":"20...35 ms closing 7...15 ms opening","lifecycle_stage":"eol_hot","Heat dissipation":"8...9.8 W","Mounting Support":"Plate","Range of Product":"TeSys F","Average impedance":"0.33 mOhm - Ith 275 A 50 Hz","Device short name":"LC1F","Poles description":"3P","Tightening torque":"Control circuit 10.6 lbf.in (1.2 N.m) Power circuit 159.3 lbf.in (18 N.m)","Compatibility code":"LC1F","Inrush power in VA":"1070 VA, 40...400 Hz 0.9 68 °F (20 °C))","Operating altitude":"9842.52 ft (3000 m) without derating","Control circuit type":"AC 40...400 Hz","Overvoltage category":"III","Protective treatment":"TH","Utilisation category":"AC-4 AC-1 AC-3","Contactor application":"Induction furnace","Mechanical durability":"10 Mcycles","Nbr. of units in pkg.":"1","Associated fuse rating":"200 A aM at 315 A gG at <= 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)flexible without cable end Control circuit screw clamp terminals 2 0.002...0.006 in² (1...4 mm²)flexible without cable end Control circuit screw clamp terminals 1 0.002...0.006 in² (1...4 mm²)flexible with cable end Control circuit screw clamp terminals 2 0.002...0.004 in² (1...2.5 mm²)flexible with cable end Control circuit screw clamp terminals 1 0.002...0.006 in² (1...4 mm²)solid without cable end Control circuit screw clamp terminals 2 0.002...0.006 in² (1...4 mm²)solid without cable end Power circuit bar 2 25 x 3 mm Power circuit lugs-ring terminals 1 0.2 in² (150 mm²) Power circuit connector 1 0.2 in² (150 mm²) Power circuit bolted connection","IP degree of protection":"IP2X front face with shrouds IEC 60529 IP2X front face with shrouds VDE 0106","Rated breaking capacity":"1480 A conforming to IEC 60947-4-1","Product or Component Type":"Contactor","Power dissipation per pole":"12 W AC-3 25 W AC-1","[Uc] control circuit voltage":"380 V AC 40...400 Hz","[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 40...400 Hz 131 °F (55 °C)) Drop-out 0.35...0.55 Uc 40...400 Hz 131 °F (55 °C))","Power Pole Contact Composition":"1 NO (early break) + 2 NO","[Ie] rated operational current":"275 A (at 185 A (at <131 °F (55 °C)) at <= 440 V AC-3","[Ue] rated operational voltage":"<= 690 V AC 50/60 Hz","Hold-in power consumption in VA":"9.9 VA, 40...400 Hz 0.9 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)","[Uimp] rated impulse withstand voltage":"8 kV","[Icw] rated short-time withstand current":"1500 A 104 °F (40 °C) - 10 s 920 A 104 °F (40 °C) - 30 s 740 A 104 °F (40 °C) - 1 min 500 A 104 °F (40 °C) - 3 min 400 A 104 °F (40 °C) - 10 min","[Ith] conventional free air thermal current":"275 A (at 104 °F (40 °C))","Permissible ambient air temperature around the device":"-40...158 °F (-40...70 °C)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/b17184876104a6fcb34b3d4e1e8e1026.pdf","sourceUrl":"https://www.se.com/vn/en/product/LC1F1857Q7/tesys-f-contactor-3p-3-no-ac3-440-v-275-a-coil-380-v-ac/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LC1F1857Q7/alternatives.json"},"ai":{"faq":[{"question":"What is the closest alternative to the LC1F1857Q7?","answer":"No official successor order code is recorded. A current-production TeSys F contactor with matching pole count, 275 A AC-3 rating, and 380 V AC coil would be the parametric equivalent, but pin-to-pin compatibility and mounting dimensions must be verified against the specific replacement part."},{"question":"What are the key ratings of the LC1F1857Q7?","answer":"Rated operational current 275 A at ≤440 V AC-3; motor power 90 kW at 380–400 V AC-3; coil voltage 380 V AC 40–400 Hz; rated breaking capacity 1480 A; insulation voltage 1000 V (IEC) / 1500 V (VDE)."},{"question":"Where can I buy the LC1F1857Q7?","answer":"This end-of-life contactor is sourced through independent distribution against an RFQ. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm offer."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LC1F1857Q7","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/LC1F1857Q7 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}