{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1647-1AG61","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1647-1AG61","canonicalUrl":"https://aoctrl.com/siemens/3RT1647-1AG61","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1647-1AG61","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT1647-1AG61 capacitor contactor, AC-6 duty, 50 kVAr/400 V, 100 V AC 50/60 Hz / 110 V AC 60 Hz coil, 3-pole, Size S3, screw terminals, phased-out.","salesMarkdown":"The Siemens SIRIUS 3RT1647-1AG61 is a 3-pole capacitor contactor in Size S3, purpose-rated for AC-6 duty at 50 kVAr / 400 V. That AC-6 rating is the key spec here — it means the contactor is designed for switching capacitor banks, where the inrush current can be many times the steady-state current. A standard AC-3 motor contactor would weld its contacts on that surge; this part handles it. Coil is AC-operated, accepting 100 V at 50 Hz or 100...110 V at 60 Hz. That covers most European and Asian line voltages at 50 Hz, plus the North American 110 V 60 Hz standard. The 50/60 Hz frequency range on the control circuit means the same coil works across both mains frequencies without a change. ## Termination and Protection Main and auxiliary circuits both terminate at screw-type terminals. One normally-open auxiliary contact is built in (1 NO).","metaTitle":"Siemens 3RT1647-1AG61 Capacitor Contactor, AC-6 50 kVAr, 100","metaDescription":"Siemens SIRIUS 3RT1647-1AG61 capacitor contactor, AC-6 duty rated 50 kVAr at 400 V, 3-pole, Size S3. Phased-out — successor is SIRIUS 3RT2. 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":"100 ... 100 V","at 60 Hz rated value":"100 ... 110 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=93731&mlfb=3RT1647-1AG61","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1647-1AG61/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between 3RT1647-1AG61 and the 3RT1044-1FB46?","answer":"The 3RT1044-1FB46 is a standard power contactor (AC-3 duty), not a capacitor-switching contactor. The 3RT1647-1AG61 is specifically rated for AC-6 capacitor duty at 50 kVAr. They share the S3 frame size and 70 mm width, but the 3RT1044-1FB46 has a 24 V DC coil versus the 100 V AC coil on the 3RT1647-1AG61, plus different auxiliary contact configurations (2 NO + 2 NC on the 3RT1044-1FB46 vs 1 NO on the 3RT1647-1AG61). A direct drop-in replacement without rewiring is unlikely."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1647-1AG61","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/3RT1647-1AG61 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}}