{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LC1K12103K7","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LC1K12103K7","canonicalUrl":"https://aoctrl.com/schneider/LC1K12103K7","factsUrl":"https://aoctrl.com/api/mcp/products/LC1K12103K7","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys K contactor, LC1K12103K7, 3-pole, AC-3 ≤440 V 12 A, 1 N/O auxiliary contact, 100 V AC coil.","salesMarkdown":"The same contactor also carries AC-1 (resistive) and AC-4 (plugging/reversing) utilisation categories, so it handles resistive heater loads and high-stress reversing duty within its current limits. ## Motor power across common line voltages This contactor supports motor loads at several standard supply voltages: 3 kW at 220–230 V AC, 5.5 kW at 380–415 V AC, 5.5 kW at 440 V AC, 4 kW at 480 V AC, 4 kW at 500–600 V AC, and 4 kW at 660–690 V AC, all at 50/60 Hz. The 5.5 kW rating at 400 V class is the most common selection point for European and IEC panels. Its heat dissipation is 1.3 W, which is low enough that you can pack several units side-by-side without forced cooling in a typical control panel. The flame-retardant housing meets V1 per UL 94 and also passes NF F 16-101 and NF F 16-102 requirements, so it is suitable for rail and transit applications where fire-smoke-toxicity standards apply. ## Withstand and coordination For selective coordination with upstream breakers or fuses, the contactor's short-time withstand current (Icw) is rated at 115 A for 1 second on the power circuit, tapering to 55 A for 1 minute. The signalling circuit (auxiliary contact) can handle 110 A for 100 ms. These values let you size the protection device without oversizing the contactor for fault clearing.","metaTitle":"Schneider TeSys K LC1K12103K7 Contactor, 3P, 12 A AC-3, 100","metaDescription":"Active LC1K12103K7 TeSys K contactor, 3 poles, AC-3 rated 12 A at ≤440 V, 100 VAC coil, 1 N/O aux. Motor power 5.5 kW at 400 V. 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","Height":"58 mm","Product name":"TeSys K","Motor power kW":"4 kW at 480 V AC 50/60 Hz 4 kW at 500...600 V AC 50/60 Hz 4 kW at 660...690 V AC 50/60 Hz 3 kW at 220...230 V AC 50/60 Hz 5.5 kW at 380...415 V AC 50/60 Hz 5.5 kW at 440 V AC 50/60 Hz","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","Device short name":"LC1K","Poles description":"3P","Compatibility code":"LC1K","Device application":"Control","Utilisation category":"AC-3 AC-4 AC-1","Pole contact composition":"3 NO","Product or component type":"Contactor","[Ie] rated operational current":"20 A (at 12 A at 16 A (at 10 MOhm for signalling circuit","[Icw] rated short-time withstand current":"115 A 50 °C - 1 s for power circuit 105 A 50 °C - 5 s for power circuit 100 A 50 °C - 10 s for power circuit 75 A 50 °C - 30 s for power circuit 55 A 50 °C - 1 min for power circuit 50 A 50 °C - 3 min for power circuit 80 A - 1 s for signalling circuit 90 A - 500 ms for signalling circuit 110 A - 100 ms for signalling circuit 25 A 50 °C - >= 15 min for power circuit"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://www.se.com/in/en/product/LC1K12103K7/tesys-k-contactor-3p-ac3-440-v-12-a-1-no-aux-100-v-ac-coil/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LC1K12103K7/alternatives.json"},"ai":{"faq":[{"question":"What motor power can this contactor handle at 400 V?","answer":"At 380–415 V AC 50/60 Hz, it is rated for 5.5 kW. At 440 V it is also 5.5 kW. At 480 V and above (500–690 V) the rating drops to 4 kW."},{"question":"What utilisation categories does it carry?","answer":"It is rated for AC-1 (resistive), AC-3 (squirrel-cage motor starting), and AC-4 (plugging, inching, reversing). The headline AC-3 rating is 12 A at ≤440 V."},{"question":"What are the physical dimensions for panel layout?","answer":"Width 45 mm, height 58 mm, depth 57 mm. It snaps onto a 35 mm DIN rail and dissipates 1.3 W."},{"question":"Does it have any special flame-retardant or rail certifications?","answer":"Yes, the housing is rated V1 per UL 94 and also meets NF F 16-101 and NF F 16-102, which are French rail standards for fire behaviour and smoke emission."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LC1K12103K7","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/LC1K12103K7 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}}