{"product_id":"siemens-sirius-3rt12-vacuum-contactors-s10-s12","title":"Siemens SIRIUS 3RT12 Vacuum Contactors S10-S12 (110-250 kW)","description":"\u003cp class=\"ps-intro\"\u003eSIRIUS 3RT12 3-pole vacuum contactors in sizes S10 and S12 for motors from 110 to 250 kW at 400 V, with standard or solid-state AC\/DC operating mechanism.\u003c\/p\u003e\u003ch4 class=\"ps-h\"\u003eKey features\u003c\/h4\u003e\u003cul class=\"ps-feat\"\u003e\n\u003cli\u003eVacuum interrupters for high switching frequency and long contact life\u003c\/li\u003e\n\u003cli\u003eStandard operating mechanisms 3RT12..-.A or solid-state 3RT12..-.N with 24 V DC digital input\u003c\/li\u003e\n\u003cli\u003eRatings 225 to 500 A at 690 V (110 to 250 kW at 400 V), AC-1 330 to 610 A\u003c\/li\u003e\n\u003cli\u003e2 NO + 2 NC lateral auxiliary contacts, varistor integrated\u003c\/li\u003e\n\u003cli\u003eBusbar main connections, screw terminals for auxiliary and control conductors\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 line\u003c\/th\u003e\n\u003ctd\u003eSIRIUS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003e3RT12 vacuum contactor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePoles\u003c\/th\u003e\n\u003ctd\u003e3 (main contacts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMain conductors\u003c\/th\u003e\n\u003ctd\u003eBusbar connections (parts kit incl.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFixing\u003c\/th\u003e\n\u003ctd\u003eScrew fixing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUtilization\u003c\/th\u003e\n\u003ctd\u003eAC-3 \/ AC-3e, IE3\/IE4 ready\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAux. contacts\u003c\/th\u003e\n\u003ctd\u003e2 NO + 2 NC (lateral)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eConnection\u003c\/th\u003e\n\u003ctd\u003eScrew (aux.\/control)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer\u003c\/th\u003e\n\u003ctd\u003eSiemens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct category\u003c\/th\u003e\n\u003ctd\u003eMagnetic Contactors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCatalog chapter\u003c\/th\u003e\n\u003ctd\u003eContactors for switching motors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSource\u003c\/th\u003e\n\u003ctd\u003eSiemens Catalog IC 10 · 2026, p. 193, 251\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\u003e3RT1264-6AF36\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eType: 3RT1264 (S10) | Rating: AC-3 225 A\/110 kW; AC-1 330 A | Coil: 110-127 V AC\/DC | Version: Standard operating mechanism\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3RT1264-6AP36\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eType: 3RT1264 (S10) | Rating: AC-3 225 A\/110 kW; AC-1 330 A | Coil: 220-240 V AC\/DC | Version: Standard operating mechanism\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3RT1265-6AF36\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eType: 3RT1265 (S10) | Rating: AC-3 265 A\/132 kW; AC-1 330 A | Coil: 110-127 V AC\/DC | Version: Standard operating mechanism\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3RT1265-6AP36\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eType: 3RT1265 (S10) | Rating: AC-3 265 A\/132 kW; AC-1 330 A | Coil: 220-240 V AC\/DC | Version: Standard operating mechanism\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3RT1266-6AF36\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eType: 3RT1266 (S10) | Rating: AC-3 300 A\/160 kW; AC-1 330 A | Coil: 110-127 V AC\/DC | Version: Standard operating mechanism\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3RT1266-6AP36\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eType: 3RT1266 (S10) | Rating: AC-3 300 A\/160 kW; AC-1 330 A | Coil: 220-240 V AC\/DC | Version: Standard operating mechanism\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3RT1275-6AF36\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eType: 3RT1275 (S12) | Rating: AC-3 400 A\/200 kW; AC-1 610 A | Coil: 110-127 V AC\/DC | Version: Standard operating mechanism\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3RT1275-6AP36\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eType: 3RT1275 (S12) | Rating: AC-3 400 A\/200 kW; AC-1 610 A | Coil: 220-240 V AC\/DC | Version: Standard operating mechanism\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3RT1276-6AF36\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eType: 3RT1276 (S12) | Rating: AC-3 500 A\/250 kW; AC-1 610 A | Coil: 110-127 V AC\/DC | Version: Standard operating mechanism\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3RT1276-6AP36\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eType: 3RT1276 (S12) | Rating: AC-3 500 A\/250 kW; AC-1 610 A | Coil: 220-240 V AC\/DC | Version: Standard operating mechanism\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3RT1264-6NF36\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eType: 3RT1264 (S10) | Rating: AC-3 225 A\/110 kW; AC-1 330 A | Coil: 96-127 V AC\/DC | Version: Solid-state, 24 V DC input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3RT1264-6NP36\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eType: 3RT1264 (S10) | Rating: AC-3 225 A\/110 kW; AC-1 330 A | Coil: 200-277 V AC\/DC | Version: Solid-state, 24 V DC input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3RT1265-6NF36\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eType: 3RT1265 (S10) | Rating: AC-3 265 A\/132 kW; AC-1 330 A | Coil: 96-127 V AC\/DC | Version: Solid-state, 24 V DC input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3RT1265-6NP36\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eType: 3RT1265 (S10) | Rating: AC-3 265 A\/132 kW; AC-1 330 A | Coil: 200-277 V AC\/DC | Version: Solid-state, 24 V DC input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3RT1266-6NF36\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eType: 3RT1266 (S10) | Rating: AC-3 300 A\/160 kW; AC-1 330 A | Coil: 96-127 V AC\/DC | Version: Solid-state, 24 V DC input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3RT1266-6NP36\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eType: 3RT1266 (S10) | Rating: AC-3 300 A\/160 kW; AC-1 330 A | Coil: 200-277 V AC\/DC | Version: Solid-state, 24 V DC input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3RT1275-6NF36\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eType: 3RT1275 (S12) | Rating: AC-3 400 A\/200 kW; AC-1 610 A | Coil: 96-127 V AC\/DC | Version: Solid-state, 24 V DC input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3RT1275-6NP36\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eType: 3RT1275 (S12) | Rating: AC-3 400 A\/200 kW; AC-1 610 A | Coil: 200-277 V AC\/DC | Version: Solid-state, 24 V DC input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3RT1276-6NF36\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eType: 3RT1276 (S12) | Rating: AC-3 500 A\/250 kW; AC-1 610 A | Coil: 96-127 V AC\/DC | Version: Solid-state, 24 V DC input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3RT1276-6NP36\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eType: 3RT1276 (S12) | Rating: AC-3 500 A\/250 kW; AC-1 610 A | Coil: 200-277 V AC\/DC | Version: Solid-state, 24 V DC input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":67534389510434,"sku":"3RT1264-6AF36","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0744\/7586\/files\/siemens-sirius-3rt12-vacuum-contactors-s10-s12.jpg?v=1792131832","url":"https:\/\/prosourcemro.com\/products\/siemens-sirius-3rt12-vacuum-contactors-s10-s12","provider":"ProSource MRO","version":"1.0","type":"link"}