{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LC1K12105E7","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LC1K12105E7","canonicalUrl":"https://aoctrl.com/schneider/LC1K12105E7","factsUrl":"https://aoctrl.com/api/mcp/products/LC1K12105E7","rawCanonicalId":null},"summary":{"shortDescription":"Schneider TeSys K series, LC1K12105E7, 3-pole contactor, 12 A rated at 440 V AC-3/AC-3e, 48 V AC 50/60 Hz coil, 1 NO auxiliary contact, solder pin terminals.","salesMarkdown":"The LC1K12105E7 is a Schneider TeSys K 3-pole contactor rated for 12 A in AC-3 and AC-3e utilisation categories at 440 V, with a 48 V AC coil. It carries one normally open instantaneous auxiliary contact and terminates via solder pins for PCB mounting. The contactor is certified to EN/IEC 60947-4-1, UL 60947-4-1, CSA C22.2 No 60947-4-1, and JIS C8201-4-1, making it accepted across North American, European, and Japanese installations. The AC-3 rating of 12 A at 440 V governs motor switching — this contactor handles squirrel-cage motors during starting and running, where the inrush is several times the full-load current. The AC-3e variant adds energy-efficiency testing per IEC 60947-4-1. AC-1 rating covers resistive loads; AC-4 covers plugging and inching duty but at a reduced electrical endurance of 0.02 Mcycles at 72 A. Mechanical durability is 10 Mcycles, but the electrical life under AC-3 motor duty is 1.3 Mcycles at 12 A — the practical replacement interval for a motor-starting application. Designed for PCB mounting via solder pins (0.035 mm diameter), this contactor occupies a 45 mm width footprint — compact enough for dense control boards. The IP2X finger-protection rating per VDE 0106 means it is safe for open-panel use where incidental contact is possible. Coil inrush is 30 VA at 20 °C, dropping to 4.5 VA hold-in; the coil lacks a built-in suppressor module, so an external RC snubber or free-wheeling diode should be added across the coil when driven by a PLC output or solid-state relay to prevent inductive kickback damage.","metaTitle":"Schneider LC1K12105E7 TeSys K Contactor, 12A AC-3, 48V AC Co","metaDescription":"Obsolete Schneider LC1K12105E7 TeSys K contactor, 3P, 12A at 440V AC-3/AC-3e, 48V AC coil, 1NO aux. Sourced to order against RFQ. Standards: EN/IEC 60947-4-1, UL, CSA.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Contactors"],"specifications":{"Depth":"57 mm","Range":"TeSys","Width":"45 mm","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 IEC 60335-1:Clause 30.2 IEC 60335-2-40:Annex JJ UL 60335-2-40:Annex JJ","Operating time":"10...20 ms coil de-energisation and NO opening 10...20 ms coil energisation and NO closing","Coil technology":"Without built-in suppressor module","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","Mounting support":"Printed circuit boards","Device short name":"LC1K","Poles description":"3P","Device application":"Control","Inrush power in VA":"30 VA (at 20 °C)","Operating altitude":"2000 m without derating","Non overlap distance":"0.5 mm","Protective treatment":"TC conforming to IEC 60068 TC conforming to DIN 50016","Utilisation category":"AC-3 AC-3e AC-1 AC-4","Contactor application":"Motor control Resistive load","Electrical durability":"1.3 Mcycles 12 A AC-3 at Ue 1.3 Mcycles 12 A AC-3e at Ue 0.3 Mcycles 20 A AC-1 at Ue 0.02 Mcycles 72 A AC-4 at Ue <= 440 V","Mechanical durability":"10 Mcycles","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","Maximum operating rate":"3600 cyc/h","Auxiliary contacts type":"type instantaneous 1 NO","Connections - terminals":"Solder pins (external diameter: 0.035 mm)","IP degree of protection":"IP2X conforming to VDE 0106","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","Minimum switching current":"5 mA for signalling circuit","Minimum switching voltage":"17 V for signalling circuit","Product or component type":"Contactor","Signalling circuit frequency":"<= 400 Hz","Control circuit voltage limits":"Operational: 0.8...1.15 Uc (at Drop-out: >= 0.20 Uc (at <50 °C)","Power Pole Contact Composition":"3 NO","[Ue] rated operational voltage":"Power circuit: Signalling circuit: 10 MOhm for signalling circuit","Hold-in power consumption in VA":"4.5 VA (at 20 °C)","Ambient air temperature for storage":"-50...80 °C"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/1e0b15ffb524ded361bd2019c37e29dc.pdf","sourceUrl":"https://www.se.com/ie/en/product/LC1K12105E7/contactor-tesys-k-3p-ac3-ac3e440v-12a-aux-1no-48v-ac-coil/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LC1K12105E7/alternatives.json"},"ai":{"faq":[{"question":"What replaces the LC1K12105E7?","answer":"No official successor is listed in the lifecycle record. Any replacement requires verifying the form, fit, and function against the original BOM — the TeSys K series has been superseded by the TeSys Deca range, but pin compatibility and coil voltage must be checked per the specific application."},{"question":"What standards does the LC1K12105E7 comply with?","answer":"It is certified to EN/IEC 60947-4-1, UL 60947-4-1, CSA C22.2 No 60947-4-1, JIS C8201-4-1, and meets IEC 60335-1 Clause 30.2 and IEC 60335-2-40 Annex JJ for appliance safety. Flame retardance is V1 per UL 94."},{"question":"What is the electrical life under motor load?","answer":"At 12 A AC-3 motor duty, the contactor is rated for 1.3 million electrical cycles. Under AC-1 resistive load at 20 A, endurance drops to 0.3 million cycles; under AC-4 plugging duty at 72 A, it is 20,000 cycles."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LC1K12105E7","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/LC1K12105E7 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}}