{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LC1K12105F72","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LC1K12105F72","canonicalUrl":"https://aoctrl.com/schneider/LC1K12105F72","factsUrl":"https://aoctrl.com/api/mcp/products/LC1K12105F72","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys K contactor, LC1K12105F72, 3-pole, AC-3 12 A at ≤440 V, 1 NO auxiliary contact, 110 V AC coil with built-in bidirectional peak limiting diode suppressor.","salesMarkdown":"Its headline rating is 12 A in AC-3 utilisation category at ≤440 V, meaning it switches three-phase induction motors drawing up to that current — typical for a 5.5 kW motor at 380–415 V or 4 kW at 480 V. The coil is 110 V AC and includes a built-in bidirectional peak limiting diode suppressor, so you don't need an external snubber across the coil for most PLC or relay outputs. The contactor carries three normally-open power poles and one normally-open auxiliary contact. It's rated for AC-1 (resistive), AC-3 (squirrel-cage motor starting/running), and AC-4 (plugging/inching) duty, so it covers both standard motor starts and more demanding reversing or jogging applications. Wire the power circuit through the three NO poles, connect the 110 V AC coil to the A1/A2 terminals, and use the single NO auxiliary for feedback to a PLC input or for electrical interlocking. The built-in coil suppression handles the inductive kick — no external diode or RC snubber needed across the coil.","metaTitle":"Schneider TeSys K LC1K12105F72 Contactor, 3P, 12A AC-3, 110V","metaDescription":"Schneider TeSys K LC1K12105F72 contactor, 3 poles, 12 A AC-3 at ≤440 V, 110 V AC coil with built-in diode suppressor. Active production. UL/CSA/CE.","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","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","Device short name":"LC1K","Poles description":"3P","Compatibility code":"LC1K","Device application":"Control","Utilisation category":"AC-4 AC-3 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":"https://cdn.aoctrl.com/80a28a7fb08844af47efdb7caacefe10.pdf","sourceUrl":"https://www.se.com/in/en/product/LC1K12105F72/tesys-k-contactor-3p-ac3-440-v-12-a-1-no-aux-110-v-ac-coil/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LC1K12105F72/alternatives.json"},"ai":{"faq":[{"question":"What is the closest alternative in the TeSys K family?","answer":"Within the same TeSys K frame, the LC1K12105F7 (same coil voltage, same 12 A AC-3 rating) is functionally identical — the only difference is the suffix indicating packaging or regional variant. For a higher current rating in the same physical footprint, look at the LC1K16105F72 (16 A AC-3) or LC1K25105F72 (25 A AC-3). All share the same 45 mm width and DIN-rail mounting."},{"question":"What compliance documentation is available for this contactor?","answer":"The contactor carries UL 94 V1 flame retardance rating and meets NF F 16-101/102 railway fire standards. As a Schneider TeSys K product, it is typically UL/CSA listed and CE marked, with RoHS and REACH declarations available from Schneider's documentation portal."},{"question":"What are the physical dimensions of the LC1K12105F72?","answer":"Width 45 mm, height 58 mm, depth 57 mm. It mounts on 35 mm DIN rail."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LC1K12105F72","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/LC1K12105F72 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}}