{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2017-2KB42-1AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2017-2KB42-1AA0","canonicalUrl":"https://aoctrl.com/siemens/3RT2017-2KB42-1AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2017-2KB42-1AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS coupling contactor, size S00, 24 VDC coil, spring-type terminals, 45 mm width, 70 mm height, 73 mm depth.","salesMarkdown":"The Siemens 3RT2017-2KB42-1AA0 is a SIRIUS coupling contactor in frame size S00, designed for switching DC loads in control circuits. At 45 mm wide, 70 mm tall, and 73 mm deep, it occupies a single 45 mm module slot — standard for the S00 frame. ## Switching ratings and duty cycle The DC switching capacity is the headline here: 10 A at 24 V, derating to 2 A at 48/60 V, 1 A at 110 V, 0.9 A at 125 V, and 0.3 A at 220 V. That 10 A at 24 VDC is the figure that governs most control-circuit applications — it comfortably handles a bank of solenoid valves or indicator lamps without an interposing relay. Electrical life depends on load: at AC-1 (resistive) the contactor manages 1,000 operations per hour; at AC-3 (motor starting) and AC-2 it drops to 750 per hour; at AC-4 (plugging/inching) to 250 per hour. For DC switching, the 10 A at 24 V rating is the practical limit — stay within the resistive load curve for full life. ## Environmental and installation constraints The contactor has no auxiliary switch built in (auxiliary switch: No), so if you need feedback or status signaling, plan for a separate auxiliary contact block or a different variant. Clearances: 10 mm upwards, downwards, and forwards; 6 mm at the sides — standard for S00 frame spacing on a DIN rail.","metaTitle":"Siemens 3RT2017-2KB42-1AA0 SIRIUS Coupling Contactor, S00, 2","metaDescription":"Siemens SIRIUS coupling contactor 3RT2017-2KB42-1AA0, size S00, 24 VDC coil, spring-type terminals. Rated 10 A at 24 VDC. Current production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"73 mm","Solid":"0.5 ... 4 mm²","Width":"45 mm","at DC":"7 ... 20 ms","Height":"70 mm","Upwards":"10 mm","Forwards":"10 mm","Stranded":"0.5 ... 4 mm²","Downwards":"10 mm","Arcing Time":"10 ... 15 ms","At The Side":"6 mm","Rated Value":"24 V","Initial Value":"0.7","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Spring-type terminals","at AC-1 maximum":"1 000 1/h","at AC-2 maximum":"750 1/h","at AC-3 maximum":"750 1/h","at AC-4 maximum":"250 1/h","lifecycle_stage":"current","Auxiliary Switch":"No","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715","Full-Scale Value":"1.25","at AC-3e maximum":"750 1/h","For Main Contacts":"20 ... 12","Mounting Position":"standing, on horizontal mounting surface","Size Of Contactor":"S00","Solid Or Stranded":"2x (0,5 ... 4 mm²)","Product Brand Name":"SIRIUS","Product Designation":"Coupling contactor","at 24 V rated value":"10 A","at 48 V rated value":"2 A","at 60 V rated value":"2 A","Of Contactor Typical":"30 000 000","at 110 V rated value":"1 A","at 125 V rated value":"0.9 A","at 220 V rated value":"0.3 A","at 230 V rated value":"2 hp","at 400 V rated value":"3 A","at 440 V rated value":"0.2 A","at 480 V rated value":"11 A","at 500 V rated value":"2 A","at 600 V rated value":"11 A","at 690 V rated value":"1 A","Side-By-Side Mounting":"Yes","For Auxiliary Contacts":"20 ... 12","For Main Current Circuit":"spring-loaded terminals","at 110/120 V rated value":"0.5 hp","at 200/208 V rated value":"3 hp","at 220/230 V rated value":"3 hp","at 460/480 V rated value":"7.5 hp","at 575/600 V rated value":"10 hp","Relative Humidity Minimum":"10 %","Of Main Circuit Rated Value":"6 kV","Safety-Related Switching On":"Yes","at AC-3 rated value maximum":"690 V","at AC in hot operating state":"1.5 W","at AC-2 at 400 V rated value":"5.5 kW","at AC-3e rated value maximum":"690 V","at AC-4 at 400 V rated value":"8.5 A","safety-related switching OFF":"Yes","Substance Prohibitance (Date)":"10/01/2009","Design Of The Surge Suppressor":"suppressor diode","Of Auxiliary Circuit Rated Value":"6 kV","at AC-5a up to 690 V rated value":"19.4 A","at AC-5b up to 400 V rated value":"9.9 A","For Auxiliary And Control Circuit":"spring-loaded terminals","Function Module For Communication":"No","With Type Of Assignment 2 Required":"gG: 20A (690V,100kA), aM: 16A (690V, 100kA), BS88: 20A (415V, 80kA)","Without Load Current Share Typical":"2.8 W","closing power of magnet coil at DC":"2.8 W","holding power of magnet coil at DC":"2.8 W","At Contactor For Auxiliary Contacts":"Spring-type terminals","With Type Of Coordination 1 Required":"gG: 50A (690V,100kA), aM: 20A (690V,100kA), BS88: 35A (415V,80kA)","operational current at AC-12 maximum":"10 A","at AC in hot operating state per pole":"0.5 W","for AWG cables for auxiliary contacts":"2x (20 ... 12)","number of NO contacts for main contacts":"3","reference code according to IEC 81346-2":"Q","Finely Stranded With Core End Processing":"2x (0.5 ... 2.5 mm²)","Number Of Poles For Main Current Circuit":"3","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","mirror contact according to IEC 60947-4-1":"Yes","Finely Stranded Without Core End Processing":"2x (0.5 ... 2.5 mm²)","Type Of Voltage Of The Control Supply Voltage":"DC","Limited To 1 S Switching At Zero Current Maximum":"200 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 5 S Switching At Zero Current Maximum":"123 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 10 S Switching At Zero Current Maximum":"96 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 30 S Switching At Zero Current Maximum":"74 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 60 S Switching At Zero Current Maximum":"61 A; Use minimum cross-section acc. to AC-1 rated value","contact rating of auxiliary contacts according to UL":"A600 / Q600","Of Main Circuit With Degree Of Pollution 3 Rated Value":"690 V","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Of Auxiliary Circuit With Degree Of Pollution 3 Rated Value":"690 V","For Short-Circuit Protection Of The Auxiliary Switch Required":"gG: 10 A (500 V, 1 kA)","minimum cross-section in main circuit at maximum AC-1 rated value":"4 mm²","number of NC contacts for auxiliary contacts instantaneous contact":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/ff8775569fd2bf54b3b9d881a14e9e8d.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=719746&mlfb=3RT2017-2KB42-1AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2017-2KB42-1AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional alternative to 3RT2017-2KB42-1AA0?","answer":"The peer 3RT2017-2AH02-ZX95 is the closest functional match — same S00 frame size and 24 VDC coil. The difference is in auxiliary contact configuration and terminal type; verify those before substituting in an existing panel design."},{"question":"What are the key dimensions for panel layout?","answer":"Width is 45 mm, height 70 mm, depth 73 mm. Mounts on 35 mm DIN rail per DIN EN 60715. Clearance requirements: 10 mm upwards, downwards, and forwards; 6 mm at the sides."},{"question":"What wire sizes does the spring terminal accept?","answer":"The spring-type terminals accept 0.5 to 4 mm² solid or stranded wire, and 2x (0.5 to 4 mm²) when doubling up conductors. No special tools needed beyond a screwdriver for the spring release."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2017-2KB42-1AA0","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/3RT2017-2KB42-1AA0 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}}