{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TM2DDI16DT","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"TM2DDI16DT","canonicalUrl":"https://aoctrl.com/schneider/TM2DDI16DT","factsUrl":"https://aoctrl.com/api/mcp/products/TM2DDI16DT","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Modicon M238 I/O expansion module, 16 discrete DC inputs, 24 V, sink/source, 3.4 kOhm impedance, 4 ms response, 500 V isolation.","salesMarkdown":"The TM2DDI16DT is the 16-point 24 V DC input expansion module for the Modicon M238 logic controller. It accepts both sink and source wiring — 7 mA per point through 3.4 kOhm input impedance — with a 4 ms response on both state transitions. The 500 V isolation between channels and logic keeps backplane transients out of the controller bus. ## Panel fit One removable screw terminal block handles all 16 inputs with a single common point. Operating range is 20.4...28.8 V DC. The module draws 40 mA from the 5 V backplane supply — standard headroom for the M238 bus. Dimensions: 84.6 mm deep, 23.5 mm wide, 90 mm high.","metaTitle":"Schneider TM2DDI16DT Modicon M238 16-DI Module, 24 V DC, Obs","metaDescription":"Obsolete 16-point 24 V DC input module for Modicon M238. 3.4 kOhm impedance, 4 ms response, 500 V isolation. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":[],"specifications":{"Depth":"3.3 in (84.6 mm)","Width":"0.9 in (23.5 mm)","Height":"3.5 in (90 mm)","Category":"US1PC1222531","Response time":"4 ms at state 0 4 ms at state 1","Input impedance":"3.4 kOhm","lifecycle_stage":"current","Local signalling":"1 display block","Mounting Support":"35 mm symmetrical DIN rail","Range of Product":"Modicon M238 logic controller","Current consumption":"40 mA 5 V DC at state 1 for all input","Discrete input logic":"Sink or source","Input voltage limits":"20.4...28.8 V","Discrete input number":"16","Electrical connection":"1 removable screw terminal block","Nbr. of units in pkg.":"1","Discrete input current":"7 mA","Discrete input voltage":"24 V","Number of common point":"1","Product or Component Type":"I/O expansion module","Discrete input voltage type":"DC","Isolation between channels and internal logic":"500 V for 1 minute"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$485.31","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/5f073a6a71f35a9bcd78b06da2e1d565.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/TM2DDI16DT/alternatives.json"},"ai":{"faq":[{"question":"What is the listed depth of the TM2DDI16DT?","answer":"3.3 in (84.6 mm)."},{"question":"What is the listed width of the TM2DDI16DT?","answer":"0.9 in (23.5 mm)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/TM2DDI16DT","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/TM2DDI16DT 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}}