{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1617-1AR63","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1617-1AR63","canonicalUrl":"https://aoctrl.com/siemens/3RT1617-1AR63","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1617-1AR63","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT1617-1AR63 capacitor contactor, AC-6, 12.5 kVAr / 400 V, 400 V AC 50/60 Hz, 20 A rated, 3-pole main contacts, 1 NO + 1 NC auxiliary, screw terminals, IP20.","salesMarkdown":"The Siemens 3RT1617-1AR63 is a capacitor contactor from the SIRIUS family, designed specifically for switching capacitor banks in power factor correction (PFC) applications. It is rated for AC-6 duty at 12.5 kVAr at 400 V, meaning it handles the high inrush currents and transient stresses that occur when energizing a capacitor bank — a failure mode that a standard motor contactor would not survive long-term. It carries 3 NO main poles and 1 NO + 1 NC auxiliary contact block, all terminated via screw-type terminals. This part is a phased-out product. The official successor is the SIRIUS 3RT2 series. The IP20 front and terminal protection is standard for enclosed panel installation — no washdown rating here. ## Fit and integration notes The 1 NO + 1 NC auxiliary set is enough for a basic status feedback or a discharge resistor interlock, but if more aux contacts are needed, an add-on block will increase the width.","metaTitle":"Siemens 3RT1617-1AR63 Capacitor Contactor, 20 A, AC-6, 12.5","metaDescription":"Siemens SIRIUS 3RT1617-1AR63 capacitor contactor, 20 A rated, AC-6 duty for 12.5 kVAr at 400 V. Phased-out, replaced by SIRIUS 3RT2 series. Sourced to order via RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"110 mm","Width":"45 mm","Height":"110 mm","Rated Value":"20 A","On The Front":"IP20","Mounting type":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Of The Terminal":"IP20","Type of voltage":"AC","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Protection class IP":"IP20","at 50 Hz rated value":"400 ... 400 V","at 60 Hz rated value":"400 ... 440 V","Side-by-side mounting":"Yes","For Main Current Circuit":"screw-type terminals","Reference code acc. to DIN EN 81346-2":"Q","Number of NC contacts for main contacts":"0","Number of NO contacts for main contacts":"3","For Auxiliary And Control Current Circuit":"screw-type terminals","Number of NC contacts for auxiliary contacts":"1","Number of NO contacts for auxiliary contacts":"1","Identification number and letter for switching elements":"11","Supply voltage frequency for auxiliary and control current circuit rated value":"50 ... 60 Hz"}},"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=508988&mlfb=3RT1617-1AR63","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1617-1AR63/alternatives.json"},"ai":{"faq":[{"question":"What replaces the 3RT1617-1AR63?","answer":"The SIRIUS 3RT2 series is the official successor. The exact order code depends on the coil voltage (400 V AC) and auxiliary contact count (1 NO + 1 NC). The 3RT2 uses a different auxiliary block interface, so verify the wiring before ordering."},{"question":"Will the 3RT1617-1AR63 fit a panel designed for the 3RT1016-1AR11?","answer":"The 3RT1617-1AR63 is 110 mm deep versus 72 mm for the 3RT1016-1AR11, and 110 mm tall versus 57.5 mm. Both are 45 mm wide and mount on 35 mm DIN rail. The depth and height difference means it will not drop into the same panel space without checking clearance for the deeper body and taller profile."},{"question":"What is the key rating of the 3RT1617-1AR63?","answer":"The critical rating is AC-6 duty at 12.5 kVAr at 400 V, which means it is designed for switching capacitor banks. The main contact rating is 20 A. The coil is 400 V AC, 50/60 Hz."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1617-1AR63","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/3RT1617-1AR63 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}}