{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1017-2BB42","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1017-2BB42","canonicalUrl":"https://aoctrl.com/siemens/3RT1017-2BB42","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1017-2BB42","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S00, 24 VDC coil, spring-loaded terminals for main and auxiliary circuits, rated 5.5 kW at 400 V AC-2.","salesMarkdown":"The 24 VDC coil draws 3.3 W during both closing and holding, which is a steady-state load you can budget for in your 24 VDC supply — no inrush spike to size around. Spring-loaded terminals on both the main and auxiliary/control circuits accept 2x (0.25 to 2.5 mm²) solid or stranded wire, or 2x (24 to 14 AWG). That means no screw torque checks during commissioning — strip, insert, and the cage holds. In AC-4 duty (plugging, inching, reversing), the rated operational current is 8.5 A at 400 V. That's the figure to use for frequent jogging or reversing applications — the AC-3 or AC-1 numbers aren't the limiting factor here. For type of coordination 2 (short-circuit protection with minimal damage to the contactor), Siemens specifies a gL/gG fuse of 20 A. For type 1 coordination (contactor replacement after fault), a 35 A fuse is allowed. This guides your upstream protective device selection. That suits most industrial control cabinets without derating for typical factory floor conditions. IP20 on the front and at the terminals — finger-safe but not washdown-rated. Mount inside an enclosure if the environment sees dust or moisture.","metaTitle":"Siemens 3RT1017-2BB42 SIRIUS Power Contactor, 24 VDC Coil, S","metaDescription":"Siemens 3RT1017-2BB42 SIRIUS power contactor, size S00, 24 VDC coil, spring-loaded terminals, rated 5.5 kW at 400 V AC-2. Active production. Sourced 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","Rated Value":"24 V","On The Front":"IP20","Initial Value":"0.85","Of The Terminal":"IP20","lifecycle_stage":"current","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Full-Scale Value":"1.1","Size Of Contactor":"S00","Solid Or Stranded":"2x (0,25 ... 2,5 mm²)","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","Side-By-Side Mounting":"Yes","For Main Current Circuit":"spring-loaded terminals","at AC-2 at 400 V rated value":"5.5 kW","at AC-4 at 400 V rated value":"8.5 A","at AWG cables for main contacts":"2x (24 ... 14)","For Auxiliary And Control Circuit":"spring-loaded terminals","With Type Of Assignment 2 Required":"fuse gL/gG: 20 A","closing power of magnet coil at DC":"3.3 W","holding power of magnet coil at DC":"3.3 W","reference code acc. to IEC 81346-2":"Q","Ambient Temperature During Operation":"-25 ... +60 °C","With Type Of Coordination 1 Required":"fuse gL/gG: 35 A","at AWG cables for auxiliary contacts":"2x (24 ... 14)","operational current at AC-12 maximum":"10 A","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","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","Type Of Voltage Of The Control Supply Voltage":"DC","Required Spacing For Grounded Parts At The Side":"6 mm","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 10 A","number of NC contacts for auxiliary contacts instantaneous contact":"1","number of NO contacts for auxiliary contacts instantaneous contact":"0","Of The Contactor With Added Electronically Optimized Auxiliary Switch Block Typical":"5 000 000"}},"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=399680&mlfb=3RT1017-2BB42","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1017-2BB42/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for motor switching?","answer":"Rated 5.5 kW at 400 V AC-2, 5.5 kW at 500 V and 690 V, and 8.5 A at 400 V AC-4. The coil is 24 VDC, drawing 3.3 W steady-state."},{"question":"What wire sizes does the spring-loaded terminal accept?","answer":"It accepts 2x (0.25 to 2.5 mm²) solid or stranded, or 2x (24 to 14 AWG) for both main and auxiliary circuits."},{"question":"What is the mounting method?","answer":"Screw and snap-on mounting onto a 35 mm standard mounting rail per DIN EN 50022. Side-by-side mounting is supported."},{"question":"What short-circuit protection is required?","answer":"For type of coordination 2, use a gL/gG fuse rated 20 A. For type 1 coordination, a 35 A gL/gG fuse is specified."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1017-2BB42","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/3RT1017-2BB42 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}}