{"product_id":"siemens-sirius-3sk1-input-expansions","title":"Siemens SIRIUS 3SK1 Input Expansions (3SK1220, 3SK1230)","description":"\u003cp class=\"ps-intro\"\u003eSIRIUS 3SK1220 sensor expansions and 3SK1230 power supplies that make 3SK1 Advanced basic unit systems more flexible.\u003c\/p\u003e\u003ch4 class=\"ps-h\"\u003eKey features\u003c\/h4\u003e\u003cul class=\"ps-feat\"\u003e\n\u003cli\u003e3SK1220 adds one 2-channel or two 1-channel sensors (floating or non-floating)\u003c\/li\u003e\n\u003cli\u003eConnected to 3SK1 Advanced basic units via 3ZY12 device connectors\u003c\/li\u003e\n\u003cli\u003e3SK1230 supplies 3SK1 Advanced systems at 110-240 V AC\/DC\u003c\/li\u003e\n\u003cli\u003e3SK1230 can also be wired as power supply for 3SK1 devices\u003c\/li\u003e\n\u003cli\u003eParameters as for 3SK1 Advanced basic units\u003c\/li\u003e\n\u003cli\u003eScrew or spring-loaded (push-in) terminals\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 3SK1 expansion units\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFor use with\u003c\/th\u003e\n\u003ctd\u003e3SK1 Advanced basic units\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\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. 1061\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\u003e3SK1220-1AB40\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eType: 3SK1220 sensor expansion | Function: 1x 2-ch. or 2x 1-ch. sensor | Supply: 24 V DC | Connection: Screw\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3SK1220-2AB40\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eType: 3SK1220 sensor expansion | Function: 1x 2-ch. or 2x 1-ch. sensor | Supply: 24 V DC | Connection: Spring-loaded (push-in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3SK1230-1AW20\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eType: 3SK1230 power supply | Function: Supply 3SK1 via device connectors | Supply: 110-240 V AC\/DC | Connection: Screw\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3SK1230-2AW20\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eType: 3SK1230 power supply | Function: Supply 3SK1 via device connectors | Supply: 110-240 V AC\/DC | 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":67535296725282,"sku":"3SK1220-1AB40","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0744\/7586\/files\/siemens-sirius-3sk1-input-expansions.jpg?v=1792150171","url":"https:\/\/prosourcemro.com\/products\/siemens-sirius-3sk1-input-expansions","provider":"ProSource MRO","version":"1.0","type":"link"}