{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2517-2BB40","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2517-2BB40","canonicalUrl":"https://aoctrl.com/siemens/3RT2517-2BB40","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2517-2BB40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, contactor, size S00, 24 VDC coil, spring-loaded terminals for main circuit and coil, screw and snap-on mounting onto 35 mm DIN rail.","salesMarkdown":"## SIRIUS 3RT2517-2BB40 — Size S00 Contactor with Spring-Terminal Block It fastens by screw or snap-on onto 35 mm DIN rail per DIN EN 50022, and the mounting position allows ±180° rotation on a vertical surface plus ±22.5° tilt forward/backward — useful when fitting into a crowded panel where the rail orientation is fixed. ## Auxiliary Contact Ratings & Switching Life The built-in auxiliary switch is rated for 10 A at 24 VDC and 10 A at 230 VAC, with derated curves at intermediate voltages: 2 A at 48/60/125 VDC, 1 A at 110 VDC, 0.3 A at 220 VDC, 3 A at 400 VAC, 0.8 A at 440 VDC, and 0.1 A at 600 VDC. These are the maximum continuous currents the auxiliary contacts can break — for a 24 VDC PLC input circuit the 10 A rating gives generous headroom, but at 125 VDC the 2 A limit means you cannot parallel multiple loads without checking the sum. Mechanical life is typical 30 million operations, with a maximum switching frequency of 10 000 cycles per hour at AC and an arcing time of 10–15 ms at DC. ## Environmental Limits & Clearances Zero clearance required upwards, forwards, backwards, or downwards — so the contactor can be stacked tight against enclosure walls or other components in those directions. The 45 mm width and 70 mm height fit the standard S00 footprint; depth is 73 mm including the spring terminals.","metaTitle":"Siemens 3RT2517-2BB40 SIRIUS Contactor, Size S00, 24 VDC Coi","metaDescription":"Siemens SIRIUS 3RT2517-2BB40 contactor, size S00, 24 VDC coil, spring-loaded terminals for main and coil. Rated for 10 A at 24 VDC auxiliary. 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":"2x (0.5 ... 4 mm²)","Width":"45 mm","at AC":"10 000 1/h","at DC":"7 ... 13 ms","Height":"70 mm","Upwards":"0 mm","Forwards":"0 mm","Backwards":"0 mm","Downwards":"0 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","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 50022","Full-Scale Value":"1.1","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":"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":"2 A","at 220 V rated value":"0.3 A","at 230 V rated value":"10 A","at 400 V rated value":"3 A","at 440 V rated value":"0.8 A","at 600 V rated value":"0.1 A","Side-By-Side Mounting":"Yes","For Main Current Circuit":"spring-loaded terminals","Relative Humidity Minimum":"10 %","per NC contact rated value":"9 A","per NO contact rated value":"12 A","Of Main Circuit Rated Value":"6 kV","Substance Prohibitance (Date)":"10/01/2009","Of Auxiliary Circuit Rated Value":"6 kV","For Auxiliary And Control Circuit":"spring-loaded terminals","Function Module For Communication":"No","With Type Of Assignment 2 Required":"gG: 20A (690V, 100kA)","at 24 V per NC contact rated value":"20 A","at 24 V per NO contact rated value":"20 A","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","at 110 V per NC contact rated value":"0.175 A","at 110 V per NO contact rated value":"0.35 A","at 220 V per NC contact rated value":"0.375 A","at 220 V per NO contact rated value":"0.75 A","at 230 V per NC contact rated value":"2.2 kW","at 230 V per NO contact rated value":"3 kW","at 400 V per NC contact rated value":"4 kW","at 400 V per NO contact rated value":"5.5 kW","With Type Of Coordination 1 Required":"gG: 35 A (690 V, 100 kA)","at AWG cables for auxiliary contacts":"2x (20 ... 12)","operational current at AC-12 maximum":"10 A","number of NC contacts for main contacts":"2","number of NO contacts for main contacts":"2","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":"4","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","at ambient temperature 40 °C rated value":"22 A","at ambient temperature 60 °C rated value":"20 A","mirror contact according to IEC 60947-4-1":"Yes; with 3RH29","Finely Stranded Without Core End Processing":"2x (0.5 ... 2.5 mm²)","Type Of Voltage Of The Control Supply Voltage":"DC","for 3-phase AC motor at 460/480 V rated value":"5 hp","for single-phase AC motor at 230 V rated value":"2 hp","Limited To 1 S Switching At Zero Current Maximum":"125 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 The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","Of Auxiliary Circuit With Degree Of Pollution 3 Rated Value":"690 V","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gG: 10 A","minimum cross-section in main circuit at maximum AC-1 rated value":"4 mm²","number of NC contacts for auxiliary contacts instantaneous contact":"0","number of NO contacts for auxiliary contacts instantaneous contact":"0","AWG number as coded connectable conductor cross section for main contacts":"20 ... 12","Of The Contactor With Added Electronically Optimized Auxiliary Switch Block Typical":"5 000 000","power loss [W] at AC-3 at 400 V for rated value of the operational current per conductor":"1.2 W"}},"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=45550&mlfb=3RT2517-2BB40","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2517-2BB40/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3RT2517-2BB40?","answer":"Submit an RFQ through this listing. The part is sourced to order via independent distribution; pricing and stock levels are confirmed at quote time."},{"question":"What is the closest functional second-source to 3RT2517-2BB40?","answer":"The 3RT2526-1BA40 is a size S00 contactor from the same SIRIUS family, but it uses a screw-type main circuit terminal instead of spring-loaded terminals. The 3RT2517-2BB40's spring terminals eliminate the need for screwdriver torque checks during panel build — a time saver on high-density rails."},{"question":"Will 3RT2517-2BB40 drop into a panel specified around 3RT2526-1BA40 without rewiring?","answer":"The 3RT2517-2BB40 shares the same S00 footprint (45 mm width, 70 mm height, 73 mm depth) and 35 mm DIN rail mounting as the 3RT2526-1BA40. The main difference is termination: spring-loaded on this part versus screw-type on the 3RT2526-1BA40. If the panel wiring uses ferruled stranded conductors, the spring terminals accept 2x 0.5–4 mm² solid or stranded — no rewiring needed, but verify the existing wire ends are prepared for spring-cage insertion (no screw-clamp ring lugs)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2517-2BB40","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/3RT2517-2BB40 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}}