{"product_id":"siemens-simatic-s5-6es5135-3ka31-21-slot-plc-rack","title":"Siemens 6ES5135-3KA31 Simatic S5 21-Slot PLC Rack","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\u003cp\u003eThe Siemens Simatic S5 6ES5135-3KA31 is a 21-slot central controller subrack engineered for the S5-135U automation system. This robust chassis provides the fundamental backplane architecture required for large-scale, multi-processor control environments. Designed for reliability in demanding industrial settings, the unit serves as the primary mounting and communication interface for CPUs, memory modules, and I\/O cards within the S5-135U platform. As a legacy infrastructure component, it remains essential for the continued operation and maintenance of established control systems in power generation, metallurgy, and chemical processing facilities.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Capacity Architecture:\u003c\/strong\u003e Supports up to 21 modules, facilitating complex multi-processor configurations and extensive I\/O density.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliable Backplane:\u003c\/strong\u003e Features high-quality contact pins designed to maintain signal integrity and minimize oxidation in long-term industrial deployments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust Mechanical Design:\u003c\/strong\u003e Constructed for high-vibration environments, ensuring stable module seating and alignment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized Power Distribution:\u003c\/strong\u003e Manages internal 5 VDC logic power (18 A capacity) and auxiliary 24 VDC rails to support diverse module requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandardized Form Factor:\u003c\/strong\u003e Designed for integration into standard 19-inch industrial enclosures.\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\u003eChassis Type\u003c\/td\u003e\n\u003ctd\u003e21-Slot Subrack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLogic Bus Supply\u003c\/td\u003e\n\u003ctd\u003e5 VDC, 18 A max\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 Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temp\u003c\/td\u003e\n\u003ctd\u003e-40 to 70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Down:\u003c\/strong\u003e Always disconnect all power sources before installing or removing the rack or any modules within the rack.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Ensure the subrack is securely bolted into a standard 19-inch industrial cabinet or rack frame to prevent mechanical stress.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding:\u003c\/strong\u003e Connect the chassis to a verified protective earth (PE) ground to maintain EMI shielding effectiveness and operator safety.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironment:\u003c\/strong\u003e Maintain adequate clearance above and below the rack to ensure proper convection cooling; avoid installation in areas with high levels of conductive dust or extreme humidity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eESD Handling:\u003c\/strong\u003e Use standard electrostatic discharge (ESD) precautions when handling the backplane or inserting modules to prevent damage to integrated circuit components.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch3\u003eIs this a complete PLC system?\u003c\/h3\u003e\u003cp\u003eNo, the 6ES5135-3KA31 is a subrack chassis only. It requires a compatible power supply module, CPU, and various I\/O modules to function as a complete control system.\u003c\/p\u003e\u003ch3\u003eIs this unit compatible with other S5 series?\u003c\/h3\u003e\u003cp\u003eThis rack is specifically designed for the S5-135U series. Please verify your specific hardware configuration to ensure compatibility with your existing S5 modules.\u003c\/p\u003e\u003ch3\u003eWhat should I do if my backplane pins are damaged?\u003c\/h3\u003e\u003cp\u003eThe backplane is a critical component for signal communication. If pins are bent, oxidized, or broken, the entire subrack should be replaced to avoid intermittent communication errors or system-wide faults.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":44731413954648,"sku":"6ES5135-3KA31","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/2039\/0488\/files\/wm_1_7e417a7c-0ce7-4a48-a893-dc1d26506655.jpg?v=1788671698","url":"https:\/\/www.industriaxplc.com\/id\/products\/siemens-simatic-s5-6es5135-3ka31-21-slot-plc-rack","provider":"IndustriaX Limited","version":"1.0","type":"link"}