{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1647-1AB01","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1647-1AB01","canonicalUrl":"https://aoctrl.com/siemens/3RT1647-1AB01","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1647-1AB01","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, Capacitor Contactor, AC-6, 50 kVAr / 400 V, 24 V 50 Hz, 3-pole, Size S3, screw terminals.","salesMarkdown":"The Siemens 3RT1647-1AB01 is a capacitor contactor from the SIRIUS family, sized S3, designed specifically for switching capacitor banks. It's rated AC-6 at 50 kVAr / 400 V — that's the duty class for capacitor loads, where inrush current can hit tens of times the rated current. The 24 V, 50 Hz coil keeps it in the standard control-voltage range for many industrial panels. Three main poles, one normally open auxiliary contact, and screw terminals for both main and control wiring. Side-by-side mounting is allowed, which saves rail space in a multi-bank capacitor setup. Protection class is IP00 on the terminals, IP20 on the front with the cover or box terminal fitted. That means it's not a washdown part — it belongs inside a panel with a door, not out in the grease and dust of a lube route.","metaTitle":"Siemens 3RT1647-1AB01 Capacitor Contactor, AC-6 50 kVAr, 24","metaDescription":"Siemens 3RT1647-1AB01 capacitor contactor, AC-6 rated 50 kVAr at 400 V, 24 VAC 50 Hz coil, 3-pole S3 frame. Phased out; successor 3RT2636-1AB03. Available 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":"24 ... 24 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 ... 50 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=164898&mlfb=3RT1647-1AB01","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1647-1AB01/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RT1647-1AB01?","answer":"The 3RT1647-1AB01 is sourced through independent distribution and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time."},{"question":"What is the AC-6 rating on 3RT1647-1AB01?","answer":"It's rated 50 kVAr at 400 V in AC-6 duty, which is the standard category for capacitor switching contactors. That rating accounts for the high inrush current when energizing a capacitor bank."},{"question":"Will 3RT1647-1AB01 drop into a panel specified around 3RT1044-1FB46?","answer":"Both are S3 frame size and mount on 35 mm DIN rail, so the footprint and rail clip are the same. But the 3RT1044-1FB46 is a general-purpose power contactor, not a capacitor-duty model — the 3RT1647-1AB01 has a different coil voltage (24 VAC vs 24 VDC) and a different duty rating. Check the control voltage and capacitor switching requirements before swapping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1647-1AB01","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/3RT1647-1AB01 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}}