{"product_id":"siemens-sirius-3sk2-safety-relays","title":"Siemens SIRIUS 3SK2 Safety Relays (Basic Units, PROFINET, Kits)","description":"\u003cp class=\"ps-intro\"\u003eSIRIUS 3SK2 software-configurable safety relays with many inputs and semiconductor outputs, plus PROFINET interface module and starter kits.\u003c\/p\u003e\u003ch4 class=\"ps-h\"\u003eKey features\u003c\/h4\u003e\u003cul class=\"ps-feat\"\u003e\n\u003cli\u003eUp to SIL 3 (IEC 62061) and PL e (ISO 13849-1)\u003c\/li\u003e\n\u003cli\u003eConfigured with SIRIUS Safety ES (TIA Portal); several independent safety functions\u003c\/li\u003e\n\u003cli\u003e22.5 mm version: 10 x 1-channel (5 x 2-channel) inputs; 45 mm version: 20 x 1-channel inputs\u003c\/li\u003e\n\u003cli\u003eSemiconductor outputs 4 A at DC-13\/24 V; expandable via 3ZY12 device connectors\u003c\/li\u003e\n\u003cli\u003ePROFINET interface module 3SK2511 for diagnostics and control-system integration\u003c\/li\u003e\n\u003cli\u003eStarter kits with basic unit, software and cables\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4 class=\"ps-h\"\u003eSpecifications\u003c\/h4\u003e\u003ctable class=\"ps-kv\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eSiemens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct line\u003c\/th\u003e\n\u003ctd\u003eSIRIUS 3SK2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControl supply voltage\u003c\/th\u003e\n\u003ctd\u003e24 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAmbient temperature\u003c\/th\u003e\n\u003ctd\u003e-25 ... +60 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDegree of protection\u003c\/th\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSafety level\u003c\/th\u003e\n\u003ctd\u003eSIL 3 \/ PL e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eApprovals\u003c\/th\u003e\n\u003ctd\u003eUL, TÜV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003e35 mm DIN rail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSource\u003c\/th\u003e\n\u003ctd\u003eSiemens Catalog IC 10 · 2026, p. 1054-1058\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ctable class=\"ps-src\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e3SK2112-1AA10\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eType: 3SK2112 basic unit | Inputs: 10 F-DI | Outputs: 2 F-DQ + 1 non-safety | Width: 22.5 mm | Connection: Screw\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3SK2112-2AA10\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eType: 3SK2112 basic unit | Inputs: 10 F-DI | Outputs: 2 F-DQ + 1 non-safety | Width: 22.5 mm | Connection: Spring-loaded (push-in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3SK2122-1AA10\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eType: 3SK2122 basic unit | Inputs: 20 F-DI | Outputs: 4 F-DQ + 2 non-safety | Width: 45 mm | Connection: Screw\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3SK2122-2AA10\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eType: 3SK2122 basic unit | Inputs: 20 F-DI | Outputs: 4 F-DQ + 2 non-safety | Width: 45 mm | Connection: Spring-loaded (push-in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3SK2511-1FA10\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eType: 3SK2511 PROFINET interface module | Inputs: -- | Outputs: -- | Width: 22.5 mm | Connection: Screw\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3SK2511-2FA10\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eType: 3SK2511 PROFINET interface module | Inputs: -- | Outputs: -- | Width: 22.5 mm | Connection: Spring-loaded (push-in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3SK2941-2AA11\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eType: Basic starter kit (3SK2112-2AA10, cable) | Inputs: 10 F-DI | Outputs: 2 F-DQ + 1 non-safety | Width: 22.5 mm | Connection: Spring-loaded (push-in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3SK2942-2AA11\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eType: PROFINET starter kit (3SK2122 + 3SK2511) | Inputs: 20 F-DI | Outputs: 4 F-DQ + 2 non-safety | Width: 45 mm + 22.5 mm | Connection: Spring-loaded (push-in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":67535296463138,"sku":"3SK2112-1AA10","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0744\/7586\/files\/siemens-sirius-3sk2-safety-relays.jpg?v=1792150171","url":"https:\/\/prosourcemro.com\/products\/siemens-sirius-3sk2-safety-relays","provider":"ProSource MRO","version":"1.0","type":"link"}