{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2017-2UW42","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2017-2UW42","canonicalUrl":"https://aoctrl.com/siemens/3RT2017-2UW42","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2017-2UW42","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS coupling contactor, 3RT2017-2UW42, Size S00, 24 V DC coil, spring-type terminals, screw and snap-on DIN rail mounting.","salesMarkdown":"The Siemens 3RT2017-2UW42 is a SIRIUS coupling contactor — a relay interface between a PLC output and a motor or resistive load, built in the compact Size S00 frame at 45 mm wide and 73 mm deep. It carries a 24 V DC coil, so it drops right onto a standard 24 V control bus without an extra power supply tap. The coil connection uses spring-type terminals — no screwdriver needed for the control wiring, which speeds up panel build and field swap-out. These are the numbers to check when packing multiple contactors side-by-side on a rail. Wire range accepts 0.5 to 4 mm² solid or stranded, and 2x (0.5 to 4 mm²) for looping through — covers typical control and power tails without adapters. ## Switching ratings and mechanical life Rated for 10 A at 24 V DC and 3 A at 400 V AC — the AC-3 maximum operating frequency is 750 switching cycles per hour, dropping to 250 cycles/hour under AC-4 (plugging/inching) duty. Mechanical life is typical 30 million operations — the contactor itself will outlast most panel refreshes, but the coil arcing time runs 10–15 ms and DC dropout is 7–13 ms, so factor that into your PLC timing if you're sequencing fast. It carries an auxiliary switch contact built in, and the spring-clamp terminals make field replacement straightforward: no loose screws to drop inside a live panel.","metaTitle":"Siemens 3RT2017-2UW42 SIRIUS Coupling Contactor, 24 V, S00","metaDescription":"Siemens 3RT2017-2UW42 SIRIUS coupling contactor, 24 V DC coil, Size S00, spring-type terminals, current production. DIN rail mount. 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 ... 13 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":"0.8","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":"Yes","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":"1.1","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","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":"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":"1.6 W","closing power of magnet coil at DC":"4 W","holding power of magnet coil at DC":"4 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=1097092&mlfb=3RT2017-2UW42","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2017-2UW42/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source to the 3RT2017-2UW42?","answer":"The 3RT2017-2AH02-ZX95 is a peer variant in the same S00 frame, but it uses a different coil voltage and terminal arrangement. The 3RT2017-2UW42 is the 24 V DC spring-terminal version — verify coil and wiring compatibility before substituting."},{"question":"What are the key dimensions for panel layout?","answer":"Width 45 mm, height 70 mm, depth 73 mm. Clearances: 10 mm above/below/forward, 6 mm at the sides."},{"question":"What wire sizes does the 3RT2017-2UW42 accept?","answer":"Solid or stranded 0.5 to 4 mm², and up to 2x (0.5 to 4 mm²) for looping conductors through the same terminal."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2017-2UW42","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/3RT2017-2UW42 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}}