{"product_id":"siemens-6es5181-3aa11-simatic-s5-expansion-units","title":"Siemens 6ES5181-3AA11 Simatic S5 Expansion Units","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e6ES5181-3AA11\u003c\/strong\u003e is a \u003cstrong\u003eSIMATIC S5 expansion unit\u003c\/strong\u003e belonging to the \u003cstrong\u003eS5-135\u003c\/strong\u003e system family, specifically designated as an \u003cstrong\u003eexpansion unit \"A\" version without power supply\u003c\/strong\u003e. This robust hardware chassis is engineered to expand legacy Siemens programmable logic controller installations, providing \u003cstrong\u003e6 module locations\u003c\/strong\u003e and \u003cstrong\u003e1 receptacle\u003c\/strong\u003e for system connectivity. Constructed for heavy-duty industrial control environments, it allows plant engineers to add localized I\/O card capacity and maintain older automation infrastructures. Typical industrial applications include legacy manufacturing lines, heavy industrial process control, and metal processing plants relying on vintage SIMATIC S5 architectures. It is fully compatible with standard Siemens SIMATIC S5-135 and S5-155 system backplanes and cabling standards.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eExpansion unit \"A\" version designed for Siemens SIMATIC S5 PLC systems\u003c\/li\u003e\n\u003cli\u003eAccommodates up to 6 module locations for flexible I\/O card expansion\u003c\/li\u003e\n\u003cli\u003eIncludes 1 system receptacle for inter-rack communication and bus linking\u003c\/li\u003e\n\u003cli\u003eOperates without an integrated power supply, utilizing external system power distribution\u003c\/li\u003e\n\u003cli\u003eRugged industrial chassis built for legacy control cabinet installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLegacy SIMATIC S5 PLC system capacity expansion\u003c\/li\u003e\n\u003cli\u003eIndustrial manufacturing plant automation retrofits\u003c\/li\u003e\n\u003cli\u003eHeavy-duty process control system maintenance\u003c\/li\u003e\n\u003cli\u003eIndustrial machinery and production line modernization support\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\u003eTechnical Parameter\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\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSiemens\u003c\/td\u003e\n\u003c\/tr\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\u003eRange\u003c\/td\u003e\n\u003ctd\u003eSimatic S5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSubrange\u003c\/td\u003e\n\u003ctd\u003eS5-135\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of product\u003c\/td\u003e\n\u003ctd\u003eExpansion units\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\u003eVersion\u003c\/td\u003e\n\u003ctd\u003eExpansion unit \"A\" version\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003eWithout power supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Slots\u003c\/td\u003e\n\u003ctd\u003e6 module locations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReceptacles\u003c\/td\u003e\n\u003ctd\u003e1 receptacle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e26.40 x 30.00 x 14.20 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e3.55 kg\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 Regulations (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\u003eMount the expansion unit securely onto a standard mounting plate inside the heavy-duty industrial control cabinet.\u003c\/li\u003e\n\u003cli\u003eEnsure proper grounding and bonding of the metal chassis to maintain system electromagnetic compatibility (EMC).\u003c\/li\u003e\n\u003cli\u003eConnect the system bus cable from the central controller or preceding expansion rack to the integrated receptacle.\u003c\/li\u003e\n\u003cli\u003eInstall compatible SIMATIC S5 I\/O modules into the designated slots while ensuring external power supply connections are properly established.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":52716774392171,"sku":"6ES5181-3AA11","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/6es5181-3aa11-sf0yogns3wp_1553e2b7-c488-4c34-b64b-6be90620026e.jpg?v=1767089321","url":"https:\/\/www.plcprotech.com\/products\/siemens-6es5181-3aa11-simatic-s5-expansion-units","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}