{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TM171DWAL2U","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"TM171DWAL2U","canonicalUrl":"https://aoctrl.com/schneider/TM171DWAL2U","factsUrl":"https://aoctrl.com/api/mcp/products/TM171DWAL2U","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Modicon M171 optimized wall thermostat display module, TM171DWAL2U, monochrome LCD, 4 keys, realtime clock, 12 VDC, CE, obsolete.","salesMarkdown":"## What you're dealing with The TM171DWAL2U is a Modicon M171 display module — white front face, monochrome LCD, four keys, a real-time clock onboard. Runs off 12 VDC from an external source, draws about 5 W, and carries CE marking. IP40 on the front face only, so it's panel-mount with protection from finger contact but not water jets. ## What about an alternative? No direct pin-compatible drop-in replacement surfaced in the records. If you're redesigning a panel, you'll want to look at current Modicon HMI or display products — but the form factor and 12 VDC supply might not translate straight across. Your best bet is to send the BOM requirements and we can cross-check against what's available on the surplus market.","metaTitle":"TM171DWAL2U Modicon M171 Display Module, Obsolete, 12 VDC","metaDescription":"Schneider Electric TM171DWAL2U obsolete Modicon M171 display module with monochrome LCD, 4 keys, realtime clock, CE marked. Sourced to order via RFQ from surplus/broker channels.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":[],"specifications":{"Color":"White","Depth":"1.2 in (31.3 mm)","Width":"3.8 in (96.5 mm)","Height":"5.4 in (137 mm)","Supply":"External source","Marking":"CE","Category":"US1PC1222537","Display Type":"LCD screen","Number of key":"4","Display colour":"Monochrome","Realtime clock":"With","lifecycle_stage":"current","Local signalling":"LCD display","Range of Product":"Modicon M171","Nbr. of units in pkg.":"1","Power Consumption in W":"5 W 0 W","IP degree of protection":"IP40 front face:","Product or Component Type":"Display module","[Us] rated supply voltage":"12 V DC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$94.73 – $166.59","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/ec6b4a72ced328111c465c192f1bfa39.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/TM171DWAL2U/alternatives.json"},"ai":{"faq":[{"question":"What is the closest official replacement for the TM171DWAL2U?","answer":"No official replacement order code is provided. Any alternative will require careful verification of fit, power, and interface."},{"question":"What compliance markings does the TM171DWAL2U carry?","answer":"CE marked. No RoHS, REACH, or UL certifications are listed in the spec for this specific unit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/TM171DWAL2U","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/TM171DWAL2U when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:21:01.794Z","lastPublished":"2026-09-02T08:21:01.794Z","indexable":true}}