{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1017-1MB42-0KT0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1017-1MB42-0KT0","canonicalUrl":"https://aoctrl.com/siemens/3RT1017-1MB42-0KT0","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1017-1MB42-0KT0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, power contactor, size S00, 3RT1017-1MB42-0KT0, 24 VDC coil, 5.5 kW rated at 400 V AC-3, screw terminals, 45 mm width.","salesMarkdown":"The 24 VDC coil draws 1.4 W during both closing and holding, so the inrush is the same as the sealed power — no extra surge on the DC supply. Pickup and dropout voltages follow the standard IEC 60947-4-1 envelope; the coil holds at nominal and drops out reliably below the release threshold. For a 24 VDC bus, this contactor pairs cleanly with a PLC digital output or a solid-state relay without needing a separate coil suppression network, though a free-wheel diode across the coil is still good practice if the driving output lacks one. Main circuit terminals are screw-type, accepting 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or up to 2x (0.75 to 4 mm²) solid or stranded copper. AWG equivalents are 2x (20 to 16), 2x (18 to 14), or 1x 12. The IP20 finger-safe terminal shrouds are standard for panel-mount gear — no special tooling needed beyond a common screwdriver. ## Short-circuit coordination For Type 2 coordination (contactor remains fully functional after a fault), the limit is 20 A gL/gG.","metaTitle":"Siemens 3RT1017-1MB42-0KT0 SIRIUS Power Contactor, 24 VDC Co","metaDescription":"Siemens SIRIUS 3RT1017-1MB42-0KT0 power contactor, size S00, 24 VDC coil, 5.5 kW at 400 V AC-3. Current production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"72 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²)","Width":"45 mm","Height":"57.5 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":"screw-type terminals","Single Or Multi-Stranded":"2x (0,5 ... 1,5 mm²), 2x (0,75 ... 2,5 mm²), max. 2x (0,75 ... 4 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 (20 ... 16), 2x (18 ... 14), 1x 12","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 (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Number of poles for main current circuit":"3","at AWG conductors for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","Contact reliability of auxiliary contacts":"1 faulty switching per 100 million (17 V, 1 mA)","For Auxiliary And Control Current Circuit":"screw-type terminals","at ambient temperature 40 °C rated value":"22 A","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=278441&mlfb=3RT1017-1MB42-0KT0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1017-1MB42-0KT0/alternatives.json"},"ai":{"faq":[{"question":"What is the rated motor power at 400 V AC-3?","answer":"5.5 kW at 400 V AC-3. At 500 V and 690 V AC-3 it is also rated 5.5 kW."},{"question":"What is the coil voltage and power draw?","answer":"24 VDC coil with 1.4 W closing and 1.4 W holding power. The inrush equals the sealed power, so no surge on the DC supply."},{"question":"What wire sizes does the screw terminal accept?","answer":"2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or max 2x (0.75 to 4 mm²) solid or stranded. AWG equivalents: 2x (20 to 16), 2x (18 to 14), or 1x 12."},{"question":"Where can I buy 3RT1017-1MB42-0KT0?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1017-1MB42-0KT0","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/3RT1017-1MB42-0KT0 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}}