{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1517-2BB48-0KT5","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1517-2BB48-0KT5","canonicalUrl":"https://aoctrl.com/siemens/3RT1517-2BB48-0KT5","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1517-2BB48-0KT5","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, power contactor, size S00, 3RT1517-2BB48-0KT5, 24 V DC coil, 45 mm width, spring-loaded terminals for main and control circuits.","salesMarkdown":"The Siemens 3RT1517-2BB48-0KT5 is a SIRIUS power contactor in the S00 frame size — the smallest in the series, at 45 mm wide, 60 mm high, and 72 mm deep. The coil picks up at 85 % of rated voltage (about 20.4 V) and drops out at 1.1× rated (26.4 V) — so on a nominal 24 V bus, it holds in during dips but releases cleanly on undervoltage. The main contacts are rated 12 A per NO and per NC at the rated value, and the auxiliary circuit carries the same 12 A per contact. For DC switching at 24 V, the contactor handles 10 A; at 60 V it's 2 A; at 110 V it drops to 1 A; at 220 V it's 0.3 A. On the AC side at 230 V it switches 6 A, at 400 V it's 3 A, at 440 V it's 0.8 A. Those numbers tell you the contactor is sized for moderate motor and resistive loads — not for high-current starters. Short-circuit protection is specified with a gL/gG fuse rated 20 A under Type 2 coordination — that's the fuse size that keeps the contactor repairable after a fault. ## Wiring and installation Both the main current circuit and the auxiliary/control circuit use spring-loaded terminals — no screwdriver needed for the wire connection, which speeds up panel wiring. The terminals accept 2x (0.25 to 2.5 mm²) solid or stranded wire, or 2x (24 to 14 AWG) for the main contacts.","metaTitle":"Siemens 3RT1517-2BB48-0KT5 SIRIUS Power Contactor, 24 V Coil","metaDescription":"Siemens 3RT1517-2BB48-0KT5 SIRIUS power contactor, size S00, 45 mm wide, 24 V DC coil, spring-loaded terminals. Current lifecycle stage. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"72 mm","Solid":"2x (0.25 ... 2.5 mm²)","Width":"45 mm","at DC":"7 ... 10 ms","Height":"60 mm","Arcing Time":"10 ... 15 ms","At The Side":"6 mm","Rated Value":"24 V","Initial Value":"0.85","During Storage":"-55 ... +80 °C","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Full-Scale Value":"1.1","Mounting Position":"with vertical mounting surface +/-180° rotatable, with vertical mounting surface +/- 30° tiltable to the front and back","Size Of Contactor":"S00","Solid Or Stranded":"2x (0,25 ... 2,5 mm²)","Product Brand Name":"SIRIUS","Product Designation":"power contactor","at 24 V rated value":"10 A","at 60 V rated value":"2 A","Of Contactor Typical":"10 000 000","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 440 V rated value":"0.8 A","Side-By-Side Mounting":"Yes","For Main Current Circuit":"spring-loaded terminals","per NC contact rated value":"12 A","per NO contact rated value":"12 A","Of Main Circuit Rated Value":"6 kV","Substance Prohibitance (Date)":"01.07.2006 00:00:00","at AWG cables for main contacts":"2x (24 ... 14)","Of Auxiliary Circuit Rated Value":"6 kV","For Auxiliary And Control Circuit":"spring-loaded terminals","at DC at 24 V maximum permissible":"0.01 A","With Type Of Assignment 2 Required":"fuse gL/gG: 20 A","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":"3.3 W","holding power of magnet coil at DC":"3.3 W","reference code acc. to IEC 81346-2":"Q","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":"3 kW","at 230 V per NO contact rated value":"3 kW","at 400 V per NC contact rated value":"5.5 kW","at 400 V per NO contact rated value":"5.5 kW","operating frequency at AC-1 maximum":"1 000 1/h","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":"2","number of NO contacts for main contacts":"2","Finely Stranded With Core End Processing":"2x (0.25 ... 1.5 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","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","Type Of Voltage Of The Control Supply Voltage":"DC","touch protection on the front acc. to IEC 60529":"finger-safe, for vertical contact from the front","protection class IP on the front acc. to IEC 60529":"IP20","Of Main Circuit With Degree Of Pollution 3 Rated Value":"690 V","Identification Number And Letter For Switching Elements":"22","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 gL/gG: 10 A","minimum cross-section in main circuit at maximum AC-1 rated value":"2.5 mm²","number of NC contacts for auxiliary contacts instantaneous contact":"2","number of NO contacts for auxiliary contacts instantaneous contact":"2","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":"0.7 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=29793&mlfb=3RT1517-2BB48-0KT5","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1517-2BB48-0KT5/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3RT1517-2BB48-0KT5?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"Will 3RT1517-2BB48-0KT5 drop into a panel that was specified around 3RT1015-1BB42 without rewiring?","answer":"Both are S00 frame size contactors with the same 45 mm width and DIN rail mounting, so the physical footprint is identical. The 3RT1517-2BB48-0KT5 uses spring-loaded terminals while the 3RT1015-1BB42 uses screw terminals, so the wiring method differs — you won't need to re-drill the panel, but you may need to adapt the wire termination style if the existing panel uses ferrules or screw-clamp wiring."},{"question":"What compliance documentation does this brand provide for 3RT1517-2BB48-0KT5 (RoHS, REACH, UL, IEC)?","answer":"The part carries a RoHS substance prohibition date of July 1, 2006, confirming RoHS compliance. As a Siemens SIRIUS product, it is designed to meet IEC and UL standards for contactors, including the rated impulse withstand voltage of 6 kV per IEC 60947. Specific UL and REACH documentation is available from Siemens upon request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1517-2BB48-0KT5","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/3RT1517-2BB48-0KT5 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}}