{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TM2DMM8DRT","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"TM2DMM8DRT","canonicalUrl":"https://aoctrl.com/schneider/TM2DMM8DRT","factsUrl":"https://aoctrl.com/api/mcp/products/TM2DMM8DRT","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Modicon M238 discrete I/O module TM2DMM8DRT, 4 inputs 24 VDC sink/source, 4 relay outputs 2 A per channel, 35 mm DIN rail mount.","salesMarkdown":"The Schneider TM2DMM8DRT discrete I/O module is part of the Modicon M238 logic controller family and is now obsolete. It gives you four 24 VDC inputs (sink or source, 7 mA draw) and four relay outputs (normally open, rated 2 A per channel on resistive loads). The input side accepts 20.4–28.8 VDC and pulls 20 mA from the 24 V rail when all channels are on. Common points are one for inputs and one for outputs, with the output common carrying up to 7 A total. ## Fit and integration notes I/O mapping is straightforward: 4 inputs (sink or source, 3.4 kOhm impedance) and 4 relay outputs (NO contacts, 45 mOhm contact resistance). Minimum switching is 0.1 mA at 0.1 VDC, so it handles dry-contact-level signals. Input response time is 4 ms per transition. Isolation is 500 V between input and internal logic, 1500 V between input and output groups, and 2300 V on the output side — solid for separation between 24 V field wiring and backplane. Mechanical durability is 20 million cycles; electrical endurance varies by load — 100,000 cycles at 1 A AC-15 (240 V, cos phi 0.7) or 100,000 cycles at 1 A DC-13 (24 V, inductive). For resistive loads at 2 A, expect 100,000 cycles as well.","metaTitle":"Schneider TM2DMM8DRT M238 I/O Module, 4 In 4 Relay Out","metaDescription":"Obsolete Schneider TM2DMM8DRT Modicon M238 discrete I/O module: 4 sink/source inputs (24 VDC), 4 relay outputs (2 A/channel). Sourced from remaining stock. Submit RFQ for your line","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":[],"specifications":{"Depth":"2.8 in (70 mm)","Width":"1.7 in (42.9 mm)","Height":"3.5 in (90 mm)","Category":"US1PC1222531","Response time":"4 ms at state 0 input 4 ms at state 1 input","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","Contact resistance":"45 mOhm","Current consumption":"20 mA 24 V DC at state 1 for all input/output 25 mA 5 V DC at state 1 for all input/output","Current per channel":"2 A","Discrete input logic":"Sink or source","Discrete output type":"Relay","Input voltage limits":"20.4...28.8 V","Discrete input number":"4","Electrical connection":"1 removable screw terminal block","Electrical durability":"100000 cycles 0.5 A AC-15 240 V AC cos phi = 0.35 inductive 100000 cycles 1 A AC-15 240 V AC cos phi = 0.7 inductive 100000 cycles 1 A DC-13 24 V DC inductive (L/R = 7 ms) 100000 cycles 2 A 240 V AC resistive 100000 cycles 2 A 30 V DC resistive","Mechanical durability":"20000000 cycles","Nbr. of units in pkg.":"1","Discrete input current":"7 mA","Discrete input voltage":"24 V","Discrete output number":"4","Number of common point":"1 for output 1 for input","Discrete output function":"1 NO","Minimum switching current":"0.1 mA 0.1 V DC","Product or Component Type":"Discrete I/O module","Discrete input voltage type":"DC","Maximum current per output common":"7 A","Isolation between output channels group":"1500 V for 1 minute","Isolation between channels and internal logic":"2300 V for 1 minute (output) 500 V for 1 minute (input)","Isolation between input channel and output channel":"1500 V for 1 minute"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$306.29","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/232ad1b74c6878d95fb42ea39165b588.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/TM2DMM8DRT/alternatives.json"},"ai":{"faq":[{"question":"How do I source the TM2DMM8DRT if it's obsolete?","answer":"We source it to order from our network of channel stock and surplus holdings. Submit an RFQ with your quantity and timeline, and we'll confirm availability from the best-priced lot on hand."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/TM2DMM8DRT","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/TM2DMM8DRT 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}}