{"product_id":"siemens-6es5188-3ua21-simatic-s5-central-unit","title":"Siemens 6ES5188-3UA21 SIMATIC S5 Central Unit","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e6ES5188-3UA21\u003c\/strong\u003e is a central rack assembly designed for the \u003cstrong\u003eSIMATIC S5-135U\u003c\/strong\u003e and \u003cstrong\u003eS5-155U\u003c\/strong\u003e programmable logic controller systems. This unit provides a robust foundation for high-performance automation tasks, featuring \u003cstrong\u003e21 slots\u003c\/strong\u003e for modular expansion and configuration. It is equipped with an integrated power supply capable of handling \u003cstrong\u003e230\/115 V AC\u003c\/strong\u003e input, delivering a regulated \u003cstrong\u003e5 V, 40 A\u003c\/strong\u003e output to the backplane. Note that this unit is supplied without a CPU module and without documentation. As a central component in legacy SIMATIC S5 architectures, it serves as the primary mounting and power distribution base for processors, I\/O modules, and communication modules in large-scale control applications.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge-Scale Expansion:\u003c\/strong\u003e Features 21 slots for extensive I\/O and communication module installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Power:\u003c\/strong\u003e Built-in power supply unit with 230\/115 V AC input and 5 V DC, 40 A output.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Compatibility:\u003c\/strong\u003e Designed specifically for the high-end SIMATIC S5-135U and S5-155U range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModular Configuration:\u003c\/strong\u003e Provides the flexibility to insert various CPU types depending on specific control requirements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLarge-scale industrial process control\u003c\/li\u003e\n\u003cli\u003eRetrofitting and maintenance of existing S5-135U\/155U installations\u003c\/li\u003e\n\u003cli\u003eMulti-axis machine tool control\u003c\/li\u003e\n\u003cli\u003eComplex production line automation requiring high I\/O density\u003c\/li\u003e\n\u003c\/ul\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\u003eFeature\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\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eSiemens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSIMATIC S5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRange\u003c\/td\u003e\n\u003ctd\u003eS5-135\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e6ES5188-3UA21\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Phase\u003c\/td\u003e\n\u003ctd\u003eObsolete\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuccessor\u003c\/td\u003e\n\u003ctd\u003e6ES5188-3UA22\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlot Capacity\u003c\/td\u003e\n\u003ctd\u003e21 Slots\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e230\/115 V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Power\u003c\/td\u003e\n\u003ctd\u003e5 V, 40 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e19.40 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e56.00 x 43.00 x 53.50 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommodity Code\u003c\/td\u003e\n\u003ctd\u003e85389091\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExport Control (ECCN)\u003c\/td\u003e\n\u003ctd\u003eN\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\u003eMounting:\u003c\/strong\u003e Due to its weight (19.40 kg), ensure the rack is mounted to a high-strength industrial cabinet backplane capable of supporting the static load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVentilation:\u003c\/strong\u003e The high power output of this unit generates heat; ensure clear airflow paths through the rack and sufficient cabinet ventilation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring:\u003c\/strong\u003e Connect the AC supply according to local electrical codes, ensuring the ground connection is established to the cabinet common ground.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModule Insertion:\u003c\/strong\u003e Always power down the unit before inserting or removing CPU or I\/O modules to prevent electrical arcing or damage to the backplane connectors.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":52716783141227,"sku":"6ES5188-3UA21","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/6es5188-3ua21-lwo330ytcah_01540e20-248b-42af-8035-0583e682fe34.jpg?v=1767089624","url":"https:\/\/www.plcprotech.com\/products\/siemens-6es5188-3ua21-simatic-s5-central-unit","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}