{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1647-1AK61","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1647-1AK61","canonicalUrl":"https://aoctrl.com/siemens/3RT1647-1AK61","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1647-1AK61","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT1647-1AK61 capacitor contactor, AC-6 duty, 50 kVAr / 400 V, 110 V AC 50 Hz / 120 V AC 60 Hz coil, 3 NO main contacts, 1 NO auxiliary contact, screw terminals, DIN rail mount.","salesMarkdown":"The Siemens 3RT1647-1AK61 is a SIRIUS capacitor contactor rated for AC-6 duty at 50 kVAr / 400 V — that means it's built specifically for switching power-factor-correction capacitor banks, not general motor loads. The AC-6 utilization category accounts for the high inrush current when energizing a discharged capacitor, which can reach 100x the rated current for a few milliseconds. A standard contactor would weld its contacts under that surge. The single NO auxiliary contact (1 NO) is available for status feedback to the PLC or to interlock the capacitor bank controller. The 70 mm width means it occupies four standard 17.5 mm module spaces — plan your enclosure rail fill accordingly. Main and auxiliary circuits both terminate at screw-type terminals. Dimensions: 167 mm high, 70 mm wide, 183 mm deep. The depth is the key fit dimension for shallow enclosures — 183 mm means it needs clearance behind the mounting rail for the contactor body and wiring. Protection class IP00 for the terminal area, IP20 on the front with the cover or box terminal installed. In a typical IP54 or IP65 panel this is fine, but if the contactor is mounted exposed, the front cover must be fitted to meet finger-safe requirements.","metaTitle":"Siemens 3RT1647-1AK61 Capacitor Contactor, 50 kVAr / 400 V,","metaDescription":"Siemens SIRIUS 3RT1647-1AK61 capacitor contactor, AC-6 rated 50 kVAr at 400 V, 110 V AC coil. Phased-out; successor 3RT2636-1NF35. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"183 mm","Width":"70 mm","Height":"167 mm","On The Front":"IP00; IP20 on the front with cover / box terminal","Of The Terminal":"IP00","Type Of Voltage":"AC","lifecycle_stage":"current","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","protection class IP":"IP00","at 50 Hz rated value":"110 ... 110 V","at 60 Hz rated value":"120 ... 120 V","Side-By-Side Mounting":"Yes","For Main Current Circuit":"screw-type terminals","at AC-1 at 400 V rated value":"90 A","Substance Prohibitance (Date)":"05/01/2012","For Auxiliary And Control Circuit":"screw-type terminals","Ambient Temperature During Operation":"-25 ... +60 °C","number of NC contacts for main contacts":"0","number of NO contacts for main contacts":"3","reference code according to IEC 81346-2":"Q","number of NC contacts for auxiliary contacts":"0","number of NO contacts for auxiliary contacts":"1","Identification Number And Letter For Switching Elements":"1","Supply Voltage Frequency For Auxiliary And Control 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=80350&mlfb=3RT1647-1AK61","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1647-1AK61/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RT1647-1AK61 and get a price?","answer":"This part is sourced through independent distribution channels. Submit an RFQ against this order code; availability and current pricing are confirmed at quote time."},{"question":"What is the AC-1 current rating of 3RT1647-1AK61?","answer":"At AC-1 (resistive load) at 400 V, it is rated 90 A. The primary duty, however, is AC-6 for capacitor switching at 50 kVAr / 400 V."},{"question":"What is the depth of 3RT1647-1AK61?","answer":"183 mm. This is the dimension from the mounting rail face to the furthest projection of the contactor body."},{"question":"Will 3RT1647-1AK61 fit on a standard DIN rail?","answer":"Yes, it snaps onto 35 mm mounting rail per DIN EN 50022. Width is 70 mm, which is four module spaces."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1647-1AK61","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/3RT1647-1AK61 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}}