{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"XCKM121H29","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"XCKM121H29","canonicalUrl":"https://aoctrl.com/schneider/XCKM121H29","factsUrl":"https://aoctrl.com/api/mcp/products/XCKM121H29","rawCanonicalId":null},"summary":{"shortDescription":"Square D Telemecanique Osiswitch XCKM121H29, General Duty Compact Limit Switch, 1NO-1NC, 240 VAC 3 A / 250 VDC 0.27 A, NEMA 1/2/4/6/6P/12/13 IP66, ISO M20 x 1.5 cable gland, thermoplastic roller lever plunger.","salesMarkdown":"The Square D Telemecanique XCKM121H29 is a general-duty compact limit switch from the Osiswitch family, built with a ZAMAK zinc alloy body and a thermoplastic roller lever plunger actuator. The 1NO-1NC contact block is rated 240 VAC at 3 A and 250 VDC at 0.27 A — the DC rating is the one to watch for inductive loads like small solenoids or DC relays, where the 0.27 A ceiling governs the actual switching capacity, not the higher AC figure. The snap-action, spring-return mechanism gives a defined pretravel of 4.6 mm and differential travel of 2.2 mm, so the switch makes and breaks cleanly at a repeatable position. ## Where it fits — enclosure and connection The enclosure carries NEMA 1/2/4/6/6P/12/13 and IP66 ratings, meaning it seals against hose-directed water and submersion to a limited depth — suitable for washdown zones in food processing or outdoor conveyor lines. The ISO M20 x 1.5 cable gland entry accepts standard metric conduit fittings; the screw-clamp terminals inside accept solid or stranded wire without ferrules.","metaTitle":"Square D XCKM121H29 Limit Switch, 1NO-1NC, IP66","metaDescription":"Square D XCKM121H29 general duty limit switch. 1NO-1NC contacts rated 240 VAC 3 A / 250 VDC 0.27 A. NEMA 1/2/4/6/6P/12/13, IP66. UL, CSA. Current production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Limit Switches"],"specifications":{"UPC":"78590187173","Type":"GENERAL DUTY, COMPACT","Model":"XCKM","title":"XCKM121H29","Approval":"UL, CSA","Category":"General Duty Limit Switches","Enclosure":"NEMA 1/2/4/6/6P/12/13, IP66","Pretravel":"4.6 MM","Brand Name":"Osiswitch[R]","description":"SQUARE D XCKM121H29: LIMIT SWITCH 240VAC 10AMP XCK +OPTIONS","Sub-Category":"General/Heavy Duty Limit Switch","UPC 12 Digit":"389110928573","Body Material":"ZAMAK[R] ZINC ALLOY","Contact Rating":"240 VAC 3 AMPERE, 250 VDC 0.27 AMPERE","Operation Type":"SPRING RETURN, SNAP ACTION","Connection Type":"ISO M20 X 1.5 CABLE GLAND/SCREW CLAMP TERMINAL","Operating Force":"5.4 LB","lifecycle_stage":"current","Actuator/Head Type":"THERMOPLASTIC ROLLER LEVER PLUNGER","Manufacturer Brand":"Square D Co.","Differential Travel":"2.2 MM","Product Description":"Telemecanique XCKM121H29 Limit Switch 240Vac 10Amp Xck +Options","Contact Configuration":"1NO-1NC","Operating Temperature":"-13 TO 158 DEG F","Full Technical Description":"General Duty, Compact Type; 1NO-1NC Contact Configuration; ISO M20 X 1.5 Cable Gland/Screw Clamp Terminal Connection Type; Spring Return, Snap Action Operation Type; 240 VAC 3 Ampere, 250 VDC 0.27 Ampere Contact Rating; UL, CSA Approval; NEMA 1/2/4/6/6P/12/13, IP66 Enclosure; ZAMAK[R] Zinc Alloy Body Material; -13 to 158 Deg F Operating Temperature; 5.4 lb Operating Force; 2.2 mm Differential Travel; Thermoplastic Roller Lever Plunger Actuator/Head Type; 4.6 mm Pretravel; OSISWITCH[R] Brand; XCKM Model"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$26.67","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/14b6ea9a00f21539d25555ca11e772d3.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What are the key electrical ratings for the XCKM121H29?","answer":"The contacts are rated 240 VAC at 3 A and 250 VDC at 0.27 A. The contact configuration is 1NO-1NC with snap-action, spring-return operation."},{"question":"What enclosure ratings does the XCKM121H29 carry?","answer":"It is rated NEMA 1/2/4/6/6P/12/13 and IP66, meaning it is suitable for washdown environments and temporary submersion."},{"question":"What approvals does the XCKM121H29 hold?","answer":"It carries UL and CSA approvals, covering North American installation requirements."},{"question":"What is the UPC for the XCKM121H29?","answer":"The UPC is 78590187173."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/XCKM121H29","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/XCKM121H29 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}}