{"product_id":"abb-3kde175111l9210-tu921s-s900-i-o-redundant-termination-unit","title":"ABB 3KDE175111L9210 TU921S S900 I\/O Redundant Termination Unit","description":"\n\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eTU921S\u003c\/strong\u003e (TU16R-Ex) is a high-reliability, redundant Module Termination Unit (MTU) designed for the \u003cstrong\u003eS900 I\/O\u003c\/strong\u003e remote architecture, supporting up to 16 I\/O modules. This termination unit is engineered to streamline field installation by mounting directly in non-hazardous locations or hazardous areas classified up to Zone 1, lowering engineering costs by minimizing traditional marshalling and trunk cabling requirement loops.\u003c\/p\u003e\n\u003cp\u003eThe S900 Type S framework interfaces with control platforms via standard \u003cstrong\u003ePROFIBUS DP\u003c\/strong\u003e communication protocols and enables connection to intrinsically safe field instruments situated across Zone 2, Zone 1, or Zone 0 explosive atmospheres. Featuring built-in infrastructure for \u003cstrong\u003eredundant communication and system power\u003c\/strong\u003e, the unit incorporates integrated disconnection switches to enable real-time replacement of power modules without interrupting underlying primary circuit current loops. Each subassembly features complete environmental \u003cstrong\u003eG3-coating\u003c\/strong\u003e, supporting full Hot Swap capability, Hot Configuration in Run (HCIR), and intelligent auto-diagnostics managed seamlessly over FDT\/DTM tools.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAccommodates up to 16 active S900 I\/O modules on a single footprint base\u003c\/li\u003e\n\u003cli\u003eEngineered with full hardware infrastructure readiness for redundant system power and communication lines\u003c\/li\u003e\n\u003cli\u003eCertified with ATEX approval ratings enabling physical deployment directly in Zone 1 environments\u003c\/li\u003e\n\u003cli\u003eProvides up to 4 terminal attachment connections per independent fieldbus channel\u003c\/li\u003e\n\u003cli\u003eEnables Hot Swap module replacement and Hot Configuration in Run (HCIR) during live plant operations\u003c\/li\u003e\n\u003cli\u003eAdvanced diagnostics and field device parametrization supported via standardized FDT\/DTM utilities\u003c\/li\u003e\n\u003cli\u003eFull-board G3-coating protection to withstand harsh, corrosive atmospheric pollutants\u003c\/li\u003e\n\u003cli\u003eIntegrated manual preselection switches for direct fieldbus hardware address assignment\u003c\/li\u003e\n\u003cli\u003eShipped standard with accompanying CD910 components and configured for placement in certified field housings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRemote S900 I\/O field stations located in Zone 1 or Zone 2 hazardous areas\u003c\/li\u003e\n\u003cli\u003eIntrinsically safe field instrument loop aggregation (Zone 0\/1\/2 environments)\u003c\/li\u003e\n\u003cli\u003eRedundant PROFIBUS DP industrial network distribution links\u003c\/li\u003e\n\u003cli\u003eChemical process lines, refining plants, and offshore oil and gas setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003cp\u003eTU921S: Redundant Termination Unit (TU16R-Ex) base module.\u003c\/p\u003e\n\u003cp\u003e3KDE175111L9210: Complete ordering model identifier (includes accompanying CD910 kit assembly).\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eABB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTU921S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct ID\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3KDE175111L9210\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eModule Termination Unit (TU16R-Ex)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModule Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSpace for up to 16 I\/O modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRedundancy Modes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSupported for Power and Communication subsystems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommunication Interface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePROFIBUS DP standard compatibility\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnvironmental Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eG3-coating across all primary board components\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChannel Wiring Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 4 terminals available per channel block\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAddress Configuration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePreselection switches for fieldbus node setting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHazardous Area Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eS900 Type S (Zone 1 mounting ready, IS field interfaces for Zones 0, 1, and 2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHS Code\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e853710\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCustoms Tariff Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e85371098\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Net Depth \/ Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e147 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Net Height\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e274 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Net Width\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e498 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Net Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.79 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRoHS Compliance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFollowing EU Directive 2011\/65\/EU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWEEE Category\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5. Small Equipment (No External Dimension More Than 50 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery Inclusion\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 batteries contained within assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSCIP Status ID\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7566e56a-de34-43d7-b868-19214ec406fa Germany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHazardous Site Precautions:\u003c\/strong\u003e When implementing a Zone 1 installation layout, mount the unit safely inside a certified field housing assembly that complies with structural environmental explosion-proof demands.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAddress Preselection:\u003c\/strong\u003e Use the manual address adjustment switches onboard the unit to set the unique PROFIBUS DP node address value before securing the primary communication lines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Isolation Segregation:\u003c\/strong\u003e Although the unit features integrated isolation components that permit online power supply swap-outs, observe safety rules when handling input lines inside volatile environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding Requirements:\u003c\/strong\u003e Secure the heavy structural backplane frame cleanly to the enclosure reference earthing plate to keep low-impedance pathways clear and maintain optimal intrinsic safety barriers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Routing Density:\u003c\/strong\u003e Arrange the field terminal lines using the 4-terminal-per-channel grid layout smoothly to prevent stress on terminal clamp springs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompliance and Certifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eATEX Certification for Zone 1 deployment\u003c\/li\u003e\n\u003cli\u003eEU Directive 2011\/65\/EU (RoHS alignment)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat specific field zone devices can wire into this termination unit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe unit can interface directly with intrinsically safe field devices that reside in Zone 2, Zone 1, or Zone 0 hazardous locations, provided the chassis base unit is powered under the S900 Type S system rules.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it necessary to switch off the main feed to replace a power module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo, integrated isolation mechanics allow individual power supply blocks or communication modules to be replaced without turning off the primary supply lines.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat function does the G3-coating provide for industrial installations?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe G3-grade coating acts as a protective layer over all electronic tracks, protecting the board against moisture, conductive dust, and corrosive gas environments.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is the device station network identity established on this backplane?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe backplane has on-board physical address switches, allowing installers to set the fieldbus node index value before activating the system loop.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the precise standalone structural weight profile of this terminal foundation?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe net standalone weight of this subassembly is 3.79 kg, reflecting its robust build and scale for 16-channel card integration.\u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":52668623618411,"sku":"3KDE175111L9210","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/abb-tu921s-3kde175111l9210-redundant-termination-unit-kyqxdf1fabj_b14a9cd2-1483-47af-8b72-7cacaaf3e3a8.jpg?v=1765535896","url":"https:\/\/www.plcprotech.com\/products\/abb-3kde175111l9210-tu921s-s900-i-o-redundant-termination-unit","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}