{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LC1K12004D7","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LC1K12004D7","canonicalUrl":"https://aoctrl.com/schneider/LC1K12004D7","factsUrl":"https://aoctrl.com/api/mcp/products/LC1K12004D7","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys K contactor, 4P (4 NO), AC-1 rated 20 A at ≤440 V, 42 V AC 50/60 Hz coil, 57 mm depth.","salesMarkdown":"The LC1K12004D7 is a 4-pole (4 NO) TeSys K contactor from Schneider Electric, designed for resistive load switching in control circuits. It carries a conventional free-air thermal current (Ith) of 20 A at 50 °C and an AC-1 rated operational current (Ie) of 20 A at ≤440 V, with a 42 V AC 50/60 Hz coil. The 4 NO pole configuration means all four poles are normally open — no auxiliary NC contacts on board — so plan for external auxiliary blocks if your circuit needs a held-closed feedback signal. The AC-1 utilisation category rating (20 A at ≤440 V) tells you this contactor is built for resistive loads — heaters, lighting banks, or transformer primaries — not for motor starting (that would be AC-3). For motor duty you'd need a different TeSys K variant. The 42 V AC coil is common in control transformers on older or site-isolated panels; verify your control voltage matches because the coil hold-in range is 0.8 to 1.15 Uc (33.6 to 48.3 V) and drop-out is 0.2 to 0.75 Uc (8.4 to 31.5 V) below 50 °C. Heat dissipation is 1.3 W at the coil's hold-in power of 4.5 VA — negligible for most enclosures, but worth noting if you're packing multiple contactors into a sealed panel. The mechanical robustness specs (10 Gn shock on Y/Z axes when closed, 4 Gn vibration 5–300 Hz) mean it holds in under moderate industrial vibration, typical for conveyor or pump panels. Safety reliability is documented with B10d values: 1,369,863 cycles under nominal load and 20,000,000 cycles under mechanical load per EN/ISO 13849-1. That's useful if you're calculating MTTFd for a safety-related control circuit.","metaTitle":"Schneider Electric LC1K12004D7 TeSys K Contactor, 4P NO, 20","metaDescription":"Active-production TeSys K contactor, 4P (4 NO), AC-1 rated 20 A at ≤440 V, 42 VAC 50/60 Hz coil. UL/CSA/IEC certified. Sourced to order against RFQ.","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","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","Product name":"TeSys K","Operating time":"10...20 ms coil de-energisation and NO opening 10...20 ms coil energisation and NO closing","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","Device short name":"LC1K","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":"42 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,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/6d676206c4fdd8f750f88cdc4a6a634d.pdf","sourceUrl":"https://www.se.com/in/en/product/LC1K12004D7/tesys-k-contactor-4p-4-no-ac1-440-v-20-a-42-v-ac-coil/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LC1K12004D7/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings I need to check for fit?","answer":"The AC-1 rated operational current is 20 A at ≤440 V for resistive loads. The coil is 42 V AC 50/60 Hz. Pole configuration is 4 NO (all four poles normally open). The conventional free-air thermal current (Ith) is 20 A at 50 °C."},{"question":"What compliance certifications does this contactor carry?","answer":"It is certified to EN/IEC 60947-4-1, UL 60947-4-1, CSA C22.2 No 60947-4-1, GB/T 14048.4, and JIS C8201-4-1. Flame retardance is V1 per UL 94, with additional NF F 16-101/-102 compliance for rail applications."},{"question":"What is the physical size of the LC1K12004D7?","answer":"Depth is 57 mm, width is 45 mm, height is 58 mm — a compact footprint for DIN-rail or panel-mount installations."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LC1K12004D7","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/LC1K12004D7 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}}