{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1017-2WB42","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1017-2WB42","canonicalUrl":"https://aoctrl.com/siemens/3RT1017-2WB42","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1017-2WB42","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, 3RT1017-2WB42, size S00, 24 VDC coil, spring-loaded terminals, 45 mm width, IP20 front.","salesMarkdown":"At 45 mm wide and 73 mm deep, it fits standard 45 mm slot spacing; side-by-side mounting is allowed with zero gap, so you can pack multiple units across a DIN rail without worrying about derating from heat buildup. ## Ratings that matter for the buyer The coil pulls 1.4 W both closing and holding — no extra inrush to size your 24 VDC supply around. Pick-up is at 85% of rated voltage (20.4 V), drop-out at 185% (44.4 V), so it stays latched through a saggy bus but drops cleanly on overvoltage. Main contact ratings: 10 A at 24 V (AC-12), 8.5 A at 400 V (AC-4), and 5.5 kW motor load at 500 V or 690 V (AC-3). For type 2 coordination, protect with a 20 A gL/gG fuse; type 1 allows 35 A. The built-in varistor surge suppressor handles coil transients, so you don't need an external snubber. Spring-loaded terminals on the main circuit accept 2x (0.25 to 2.5 mm²) solid or stranded, or 2x (24 to 14 AWG). Strip length is 8 mm — standard for this terminal family. The terminals are IP20 rated, so finger-safe inside a panel.","metaTitle":"Siemens 3RT1017-2WB42 SIRIUS Power Contactor, 24 VDC, Size S","metaDescription":"Siemens 3RT1017-2WB42 SIRIUS power contactor, 24 VDC coil, size S00, 45 mm wide, spring terminals, IP20. Active production. Available to order against RFQ.","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":"0.85","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":"1.85","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","Design of the surge suppressor":"with varistor","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=377857&mlfb=3RT1017-2WB42","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1017-2WB42/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RT1017-2WB42 and how do I get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current availability and pricing."},{"question":"Will 3RT1017-2WB42 drop into a panel that was specified around 3RT1016-2AP02 without rewiring?","answer":"Both are size S00 contactors with the same 45 mm width and 35 mm DIN rail mounting, so the mechanical footprint is identical. The main difference is the coil voltage — 3RT1017-2WB42 uses 24 VDC, while 3RT1016-2AP02 uses a different coil. Verify the coil supply before swapping."},{"question":"What is 3RT1017-2WB42's listed depth (73 mm) on this component line?","answer":"The depth is 73 mm, which is standard for size S00 contactors and fits within typical 100 mm deep enclosures with room for wiring."},{"question":"What compliance documentation does this brand provide for 3RT1017-2WB42 (RoHS, REACH, UL, IEC)?","answer":"As a Siemens SIRIUS product, it carries CE marking and is designed to IEC/EN 60947-4-1. RoHS and REACH declarations are available from Siemens on request. UL/CSA listings are typical for the SIRIUS line but should be confirmed per specific catalog number."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1017-2WB42","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/3RT1017-2WB42 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}}