{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LC1K120045F72","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LC1K120045F72","canonicalUrl":"https://aoctrl.com/schneider/LC1K120045F72","factsUrl":"https://aoctrl.com/api/mcp/products/LC1K120045F72","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys K contactor, 4P (4 NO), AC-1 rated 20 A at 690 V, 110 V AC 50/60 Hz coil, 45 mm wide.","salesMarkdown":"The 110 V AC 50/60 Hz coil draws 30 VA inrush and 4.5 VA hold-in, with a built-in bidirectional peak-limiting diode suppressor that clips the inductive kick — no external snubber needed on the coil circuit. It carries approvals across EN/IEC 60947-4-1, UL 60947-4-1, CSA C22.2 No 60947-4-1, and JIS C8201-4-1, so it qualifies for panels destined for North American, European, and Asian markets without a separate component-level re-certification. For motor switching (AC-3 duty), you derate from this figure; the 20 A AC-1 rating is the resistive-load ceiling. The associated fuse recommendation of 25 A gG or 25 A aM tells you the maximum branch-circuit protection that keeps the contactor within its short-circuit withstand. Rated breaking capacity reaches 110 A at 440 V, 80 A at 500 V, and 70 A at 660–690 V — these are the fault-clearing numbers the contactor can interrupt without welding or excessive arc damage. The 144 A rated making capacity (Irms) covers the closing surge into a cold load. Mechanical robustness specs show the contactor holds closed under 10–15 Gn shocks (11 ms) and 4 Gn vibration (5–300 Hz) — relevant for machine-tool or mobile-equipment panels where the contactor sees continuous vibration. The 45 mm wide body fits standard DIN-rail mounting in a control cabinet. Four NO poles let it switch multiple resistive loads simultaneously — heater banks, lighting groups, or as a slave contactor extending an upstream PLC output. Operating altitude is 2000 m without derating; above that, the air density drop reduces dielectric and cooling capacity, so you'd need to apply the manufacturer's altitude correction factor.","metaTitle":"Schneider LC1K120045F72 TeSys K Contactor, 4P 20 A AC-1, 110","metaDescription":"Active TeSys K contactor, 4 NO poles, 20 A AC-1 at 690 V, 110 V AC 50/60 Hz coil. Complies with EN/IEC 60947-4-1, UL, CSA. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"57 mm","Range":"TeSys","Width":"45 mm","title":"LC1K120045F72","Height":"58 mm","Standards":"EN/IEC 60947-4-1 GB/T 14048.4 UL 60947-4-1 CSA C22.2 No 60947-4-1 JIS C8201-4-1","description":"TeSys K contactor, 4P (4 NO), AC,1 <= 440 V 20 A, 110 V AC coil","Product name":"TeSys K","Operating time":"10...20 ms coil de-energisation and NO opening 10...20 ms coil energisation and NO closing","Coil technology":"Built-in bidirectional peak limiting diode suppressor","lifecycle_stage":"current","Flame retardance":"V1 conforming to UL 94 Requirement 2 conforming to NF F 16-101 Requirement 2 conforming to NF F 16-102","Heat dissipation":"1.3 W","Range of product":"TeSys K","Average impedance":"3 mOhm - Ith 20 A 50 Hz for power circuit","Poles description":"4P","Compatibility code":"LC1K","Device application":"Control","Inrush power in VA":"30 VA (at 20 °C)","Operating altitude":"2000 m without derating","Control circuit type":"AC at 50/60 Hz","Overvoltage category":"III","Protective treatment":"TC conforming to IEC 60068 TC conforming to DIN 50016","Utilisation category":"AC-1","Contactor application":"Resistive load","Mechanical robustness":"Shocks contactor closed, on X axis: 10 Gn for 11 ms conforming to IEC 60068-2-27 Shocks contactor closed, on Y axis: 15 Gn for 11 ms conforming to IEC 60068-2-27 Shocks contactor closed, on Z axis: 15 Gn for 11 ms conforming to IEC 60068-2-27 Shocks contactor opened, on X axis: 6 Gn for 11 ms conforming to IEC 60068-2-27 Shocks contactor opened, on Y axis: 10 Gn for 11 ms conforming to IEC 60068-2-27 Shocks contactor opened, on Z axis: 10 Gn for 11 ms conforming to IEC 60068-2-27 Vibrations contactor closed: 4 Gn, 5...300 Hz conforming to IEC 60068-2-6 Vibrations contactor opened: 2 Gn, 5...300 Hz conforming to IEC 60068-2-6","Associated fuse rating":"25 A gG at 25 A aM for power circuit","Maximum operating rate":"3600 cyc/h","Rated breaking capacity":"110 A at 440 V conforming to IEC 60947 80 A at 500 V conforming to IEC 60947 70 A at 660...690 V conforming to IEC 60947","Pole contact composition":"4 NO","Safety reliability level":"B10d = 1369863 cycles contactor with nominal load conforming to EN/ISO 13849-1 B10d = 20000000 cycles contactor with mechanical load conforming to EN/ISO 13849-1","Product or component type":"Contactor","Irms rated making capacity":"144 A AC for power circuit conforming to NF C 63-110 144 A AC for power circuit conforming to IEC 60947","Signalling circuit frequency":"<= 400 Hz","[Uc] control circuit voltage":"110 V AC 50/60 Hz","Control circuit voltage limits":"Operational: 0.8...1.15 Uc (at Drop-out: 0.2...0.75 Uc (at <50 °C)","[Ie] rated operational current":"20 A (at 16 A (at <70 °C) at 690 V AC AC-1 for power circuit","Hold-in power consumption in VA":"4.5 VA (at 20 °C)","[Ith] conventional free air thermal current":"20 A (at 50 °C) for power circuit"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/cd660bc7d2644aa3b06cd9714a9fb48f.pdf","sourceUrl":"https://www.se.com/in/en/product/LC1K120045F72/tesys-k-contactor-4p-4-no-ac1-440-v-20-a-110-v-ac-coil/"},"ai":{"faq":[{"question":"What are the key ratings for fit?","answer":"The contactor is rated 20 A AC-1 at 690 V, with a 110 V AC 50/60 Hz coil. It has 4 NO poles and a 45 mm width for DIN-rail mounting. Breaking capacity reaches 110 A at 440 V."},{"question":"What compliance documentation does this part carry?","answer":"It complies with EN/IEC 60947-4-1, GB/T 14048.4, UL 60947-4-1, CSA C22.2 No 60947-4-1, and JIS C8201-4-1. Flame retardance is V1 per UL 94."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LC1K120045F72","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/LC1K120045F72 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}}