{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2017-2QB42","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2017-2QB42","canonicalUrl":"https://aoctrl.com/siemens/3RT2017-2QB42","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2017-2QB42","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT2017-2QB42, coupling contactor, size S00, 24 V DC coil, spring-type terminals, screw and snap-on mounting onto 35 mm DIN rail.","salesMarkdown":"## SIRIUS Coupling Contactor for 24 V DC Control Circuits The 3RT2017-2QB42: The 45 mm width and 121 mm depth fit the standard S00 DIN-rail footprint, and the screw and snap-on mounting onto 35 mm DIN rail per DIN EN 60715 allows rapid panel integration without additional hardware. ## Switching Capability and Duty Cycles Rated for 10 A at 24 V DC, with a maximum switching frequency of 1 000 operations per hour under AC-1 resistive load, and 750 ops/h under AC-3 motor duty. This makes it suitable for moderate-speed coupling applications such as signaling between control systems or pilot-duty switching. The mechanical life of 30 000 000 operations typical indicates a long service interval in lightly loaded or dry-circuit applications, though contact wear under rated load will reduce electrical life proportionally. ## Wiring and Mounting Flexibility Spring-type terminals accept solid or stranded conductors from 0.5 to 4 mm², including two conductors per clamp (2x 0.5 to 4 mm²), which simplifies daisy-chaining or paralleling control wiring without separate terminal blocks. These are the minimum air gaps to maintain rated insulation; crowding against other components or enclosure walls below these figures may require derating. As a standard SIRIUS catalog item, the 3RT2017-2QB42 is specified into the BOM with confidence that supply is through normal Siemens distribution channels. No official successor exists because none is needed.","metaTitle":"Siemens 3RT2017-2QB42 SIRIUS Coupling Contactor, 24 VDC Coil","metaDescription":"Siemens SIRIUS 3RT2017-2QB42 coupling contactor, size S00, 24 VDC coil, spring-type terminals, 45 mm width. Active production. Sourced to order via RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"121 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":"+/-180° rotation possible on vertical mounting surface; can be tilted forward and backward by +/- 22.5° on vertical 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","at AC-3 rated value maximum":"690 V","at AC in hot operating state":"1.5 W","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":"with varistor","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","with low demand rate according to SN 31920":"40 %","Finely Stranded Without Core End Processing":"2x (0.5 ... 2.5 mm²)","with high demand rate according to SN 31920":"73 %","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":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=192958&mlfb=3RT2017-2QB42","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2017-2QB42/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source to the 3RT2017-2QB42?","answer":"The 3RT2017-2AH02-ZX95 is a peer variant within the same SIRIUS S00 family, but it carries a different coil voltage and may have different terminal or auxiliary configurations. Verify coil rating and wiring before substituting directly."},{"question":"What are the key dimensions for panel layout?","answer":"Width is 45 mm, depth is 121 mm, and height is 70 mm. Minimum clearance: 10 mm upwards, forwards, and downwards; 6 mm at the side."},{"question":"What wire sizes does the spring terminal accept?","answer":"Solid or stranded conductors from 0.5 to 4 mm², and up to two conductors of the same range per clamp."},{"question":"Will the 3RT2017-2QB42 drop into a panel designed for the 3RT2017-2AH02-ZX95?","answer":"Mechanically yes — both are S00 frame size with the same 45 mm width and DIN-rail mounting. Electrically, verify coil voltage: the 2QB42 is 24 V DC, while the 2AH02-ZX95 may differ. No rewiring of the power circuit is needed if the coil supply matches."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2017-2QB42","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/3RT2017-2QB42 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}}