{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1017-2MB42-0KT0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1017-2MB42-0KT0","canonicalUrl":"https://aoctrl.com/siemens/3RT1017-2MB42-0KT0","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1017-2MB42-0KT0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS S00 power contactor, 3RT1017-2MB42-0KT0, 24 VDC coil, spring-loaded terminals, 8.5 A AC-4 at 400 V, IP20, 45 mm wide.","salesMarkdown":"It carries a 24 VDC coil with a holding power of 1.4 W, and its main circuit uses spring-loaded terminals accepting 2x (0.25 to 2.5 mm²) solid or stranded wire. For motor switching duty, the contactor is rated 8.5 A at AC-4 at 400 V — that's the full reversing or plugging current, not just the running load. The AC-12 resistive rating goes up to 10 A. At 24 VDC the coil draws its closing and holding power at 1.4 W, so the control transformer can be sized lean. IP20 finger-safe protection on the front and terminals means it can sit in a standard IP54 enclosure without additional shrouding. For type 1 coordination (contactor may need replacement after fault), use a 35 A gL/gG fuse.","metaTitle":"Siemens 3RT1017-2MB42-0KT0 SIRIUS S00 Contactor, 24 VDC, 8.5","metaDescription":"Siemens 3RT1017-2MB42-0KT0 SIRIUS power contactor, size S00, 24 VDC coil, 8.5 A at AC-4 400 V. Spring-loaded terminals, IP20. Current production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"73 mm","Solid":"2x (0.25 ... 2.5 mm²)","Width":"45 mm","Height":"60 mm","Maximum":"2 000 m","At The Side":"6 mm","Rated Value":"24 V","On The Front":"IP20","Initial Value":"0.82","Mounting type":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Of The Terminal":"IP20","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Full-scale value":"2.15","Size of contactor":"S00","Product brand name":"SIRIUS","Degree of pollution":"3","Product designation":"power contactor","at 24 V rated value":"10 A","at 60 V rated value":"2 A","Of Contactor Typical":"30 000 000","at 110 V rated value":"1 A","at 220 V rated value":"0.3 A","at 230 V rated value":"6 A","at 400 V rated value":"3 A","at 500 V rated value":"5.5 kW","at 690 V rated value":"5.5 kW","Instantaneous Contact":"0","Side-by-side mounting":"Yes","For Main Current Circuit":"spring-loaded terminals","Single Or Multi-Stranded":"2x (0,25 ... 2,5 mm²)","at AC-2 at 400 V rated value":"5.5 kW","at AC-4 at 400 V rated value":"8.5 A","Closing power of magnet coil at DC":"1.4 W","Holding power of magnet coil at DC":"1.4 W","Operating current at AC-12 maximum":"10 A","With Type Of Assignment 2 Required":"fuse gL/gG: 20 A","at AWG conductors for main contacts":"2x (24 ... 14)","With Type Of Coordination 1 Required":"fuse gL/gG: 35 A","Reference code acc. to DIN EN 81346-2":"Q","Number of NC contacts for main contacts":"0","Number of NO contacts for main contacts":"3","Finely Stranded With Core End Processing":"2x (0.25 ... 1.5 mm²)","Number of poles for main current circuit":"3","at AWG conductors for auxiliary contacts":"2x (24 ... 14)","Contact reliability of auxiliary contacts":"1 faulty switching per 100 million (17 V, 1 mA)","For Auxiliary And Control Current Circuit":"spring-loaded terminals","at ambient temperature 40 °C rated value":"22 A","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","Type of voltage of the control supply voltage":"DC","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 10 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=219623&mlfb=3RT1017-2MB42-0KT0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1017-2MB42-0KT0/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source for 3RT1017-2MB42-0KT0?","answer":"The closest peer in the same SIRIUS S00 family is the 3RT1016-2AP02, but the 3RT1017-2MB42-0KT0 uses a 24 VDC coil with spring-loaded terminals, while the 3RT1016-2AP02 typically uses screw terminals and a different coil voltage. Verify coil voltage and terminal type before substituting."},{"question":"Where can I buy 3RT1017-2MB42-0KT0 and how is it quoted?","answer":"This part is sourced to order through independent distribution. Submit an RFQ for current pricing and availability — confirmation is provided at quote time."},{"question":"Will 3RT1017-2MB42-0KT0 drop into a panel specified around 3RT1016-2AP02?","answer":"Both are S00 frame size with the same 45 mm width and DIN rail mounting, so the physical fit is identical. The difference is the coil voltage and terminal type — verify your control voltage is 24 VDC and that spring-loaded terminals are acceptable before swapping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1017-2MB42-0KT0","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/3RT1017-2MB42-0KT0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}