{"product_id":"schneider-tm3dm24r-discrete-i-o-module-compact-discrete-i-o","title":"Schneider TM3DM24R Discrete I\/O module - Compact Discrete I\/O","description":"\u003ch2\u003eProduct Introduction\u003c\/h2\u003e\u003cp\u003eWhen your automation system demands reliable discrete I\/O handling, the \u003cstrong\u003eSchneider TM3DM24R\u003c\/strong\u003e provides a compact, powerful solution. Part of the Modicon TM3 series, this discrete I\/O module integrates 16 digital inputs and 8 relay outputs, delivering 24 I\/O points in a space-saving 42.9 mm wide housing. Designed for seamless compatibility with Schneider Modicon M221, M241, and M251 controllers, the \u003cstrong\u003eTM3DM24R\u003c\/strong\u003e simplifies wiring and reduces panel space while maintaining high performance in industrial environments.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications Breakdown\u003c\/h2\u003e\u003cp\u003eKey specifications of the \u003cstrong\u003eSchneider TM3DM24R\u003c\/strong\u003e demonstrate its robust design:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInputs:\u003c\/strong\u003e 16 discrete inputs (sink\/source, 24 V DC, 7 mA each) conforming to IEC 61131-2 Type 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutputs:\u003c\/strong\u003e 8 relay (normally open) outputs, capable of switching 24 V DC or 240 V AC up to 2 A per output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanical Durability:\u003c\/strong\u003e 20,000,000 cycles – ensures long operational life\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResponse Time:\u003c\/strong\u003e 4 ms turn-on\/turn-off for reliable signal processing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection:\u003c\/strong\u003e 1500 V AC isolation between input and output groups\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThese specs translate to efficient signal processing, reduced downtime, and higher system reliability – directly contributing to lower total cost of ownership.\u003c\/p\u003e\u003ch2\u003eIndustry Applications\u003c\/h2\u003e\u003cp\u003eThe Schneider TM3DM24R excels in applications requiring mixed input sensing and relay output control. Typical use cases include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging Machinery:\u003c\/strong\u003e Monitor sensors for product presence and actuate pneumatic valves via relay outputs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Handling:\u003c\/strong\u003e Conveyor belt control – read limit switches and drive contactors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHVAC Systems:\u003c\/strong\u003e Manage thermostat inputs and control fan relays\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIn each scenario, the module’s fast response and high current capability (up to 7 A per common) minimize wear on external components, aligning with the cost-benefit angle by extending system life.\u003c\/p\u003e\u003ch2\u003eCompatibility \u0026amp; Integration\u003c\/h2\u003e\u003cp\u003eThe Schneider TM3DM24R is designed for direct integration with Modicon M221, M241, and M251 logic controllers. It connects via the TM3 bus, drawing only 5 mA at 5 V DC in off state and 65 mA when active. No separate power supply is required for the I\/O logic – the module is powered through the backplane connector. This ease of integration reduces engineering effort and simplifies inventory management.\u003c\/p\u003e\u003ch2\u003eInstallation \u0026amp; Setup Guidance\u003c\/h2\u003e\u003cp\u003eMount the Schneider TM3DM24R on a standard TH35-15 or TH35-7.5 DIN rail per IEC 60715. For panel mounting, use the optional fixing kit. Use removable screw terminal blocks (3.81 mm pitch) for wiring: 17 terminals for inputs and 11 for outputs, accepting up to 1.5 mm² wire. Keep unshielded cable lengths under 30 m for reliable input signals. Ensure the module orientation matches the controller’s expansion slot orientation – the TM3DM24R should be inserted to the right of the CPU.\u003c\/p\u003e\u003ch2\u003eMaintenance \u0026amp; Reliability\u003c\/h2\u003e\u003cp\u003eWith 20 million mechanical cycles and an IP20 protective cover, the Schneider TM3DM24R requires minimal maintenance. However, periodic inspection of relay contacts (especially under high inductive load) and cleaning of terminal blocks from dust ensure long-term reliability. Operate within -10…55 °C for horizontal mounting (or -10…35 °C vertical) to maximize lifespan. The module’s immunity to electrostatic discharge (8 kV air) and fast transients (2 kV) protects against common industrial disturbances, reducing unexpected failures and thus lowering maintenance costs.\u003c\/p\u003e\u003ch2\u003eSelection Guide \u0026amp; Purchasing Advice\u003c\/h2\u003e\u003cp\u003eBefore purchasing the Schneider TM3DM24R, verify that your controller (M221\/M241\/M251) has an available expansion slot and that the power budget can supply the required 65 mA at 5 V DC when all outputs are on. The relay outputs are rated for 2 A per point (7 A per common), so ensure your load does not exceed these limits. For applications requiring sinking or sourcing inputs, the TM3DM24R supports both, offering flexibility. As a trusted supplier, UBEST Automation (ubest101) stocks genuine \u003cstrong\u003eSchneider TM3DM24R\u003c\/strong\u003e modules with fast shipping. Contact us for bulk pricing or technical support.\u003c\/p\u003e","brand":"Schneider","offers":[{"title":"Default","offer_id":44404065009763,"sku":"TM3DM24R","price":299.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/8635\/0435\/files\/TM3DM24R-1.jpg?v=1785025190","url":"https:\/\/www.plcsourcepro.com\/products\/schneider-tm3dm24r-discrete-i-o-module-compact-discrete-i-o","provider":"PLC Source PRO","version":"1.0","type":"link"}