{"product_id":"siemens-simatic-s5-6es5135-3ka31-21-slot-plc-rack","title":"Siemens 6ES5135-3KA31 Simatic S5-135U 21-Slot PLC Subrack","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\u003cp\u003eThe Siemens 6ES5135-3KA31 is a 21-slot subrack engineered as the primary chassis for the Simatic S5-135U programmable logic controller system. This robust mechanical frame provides the necessary backplane architecture for high-speed data communication and power distribution across complex, multi-processor automation configurations. Designed for demanding industrial environments such as rolling mills and petrochemical processing, this chassis ensures structural integrity and reliable electrical connectivity for legacy S5-135U installations.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e21-slot capacity for high-density I\/O and CPU module configurations.\u003c\/li\u003e\n\u003cli\u003eRugged aluminum frame designed to withstand industrial vibration and mechanical stress.\u003c\/li\u003e\n\u003cli\u003eIntegrated multi-layer backplane with gold-plated connector pins to ensure low-resistance signal paths and oxidation resistance.\u003c\/li\u003e\n\u003cli\u003eParallel bus architecture supporting multi-processor communication without data collisions.\u003c\/li\u003e\n\u003cli\u003eOptimized for standard 19-inch rack mounting.\u003c\/li\u003e\n\u003cli\u003eShielded signal routing to maintain communication integrity in high-EMI environments.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e6ES5135-3KA31\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eSimatic S5-135U\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlots\u003c\/td\u003e\n\u003ctd\u003e21\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLogic Bus Supply\u003c\/td\u003e\n\u003ctd\u003e5 VDC \/ 18 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAuxiliary Supply\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to 70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003e19-inch Rack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEnsure the subrack is securely mounted in a standard 19-inch industrial cabinet with adequate clearance for airflow.\u003c\/li\u003e\n\u003cli\u003eAlways disconnect all power sources from the rack before inserting or removing any CPU, I\/O, or power supply modules to prevent electrical arcing or damage to the backplane pins.\u003c\/li\u003e\n\u003cli\u003eVerify that the backplane connectors are free of dust and debris before module installation.\u003c\/li\u003e\n\u003cli\u003eEnsure proper grounding of the chassis to the cabinet earth bus to mitigate electromagnetic interference.\u003c\/li\u003e\n\u003cli\u003eMaintain ambient operating temperatures within the 0 to 55 deg C range to ensure long-term reliability of the backplane components.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch3\u003eIs this chassis compatible with all S5-135U modules?\u003c\/h3\u003e\u003cp\u003eYes, the 6ES5135-3KA31 is designed to house standard S5-135U modules. Please ensure your specific module configuration does not exceed the 18 A current limit of the 5 VDC bus.\u003c\/p\u003e\u003ch3\u003eDoes this unit include a power supply?\u003c\/h3\u003e\u003cp\u003eNo, this is the subrack chassis only. It requires a compatible Siemens S5-135U power supply module to be installed in the designated slot to provide the necessary system voltages.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":51002205339900,"sku":"6ES5135-3KA31","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/wm_1_67ff8be8-f4e5-4562-a599-cd9f0635b4bb.jpg?v=1787336971","url":"https:\/\/www.electronicplc.com\/products\/siemens-simatic-s5-6es5135-3ka31-21-slot-plc-rack","provider":"Electronic PLC","version":"1.0","type":"link"}