{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1627-1AR61","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1627-1AR61","canonicalUrl":"https://aoctrl.com/siemens/3RT1627-1AR61","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1627-1AR61","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT1627-1AR61 capacitor contactor, AC-6 duty 25 kVAr at 400 V, 400 V AC 50/60 Hz coil, 35 A AC-1, 3 NO main + 1 NO auxiliary contacts, screw terminals, IP20 front, DIN rail mount.","salesMarkdown":"The Siemens 3RT1627-1AR61 is a capacitor contactor from the SIRIUS family, designed specifically for switching capacitor banks in power-factor correction (PFC) applications. Its AC-6 duty rating of 25 kVAr at 400 V means it handles the inrush currents and transient stresses that come with energizing a capacitor bank — a standard power contactor would weld its contacts under that surge. The 35 A AC-1 rating covers resistive loads if the same contactor is used for bypass or discharge duties. That is a fixed-voltage coil — no electronic wide-range coil here — so verify your control voltage matches before wiring. The contactor carries 3 normally-open main poles and 1 normally-open auxiliary contact, enough for a basic capacitor-step control with a feedback signal to the controller. ## Mounting and integration — panel fit Dimensions are 135 mm deep, 45 mm wide, 100 mm tall. Side-by-side mounting is allowed, saving panel width when stacking multiple capacitor steps. That means the operator interface is finger-safe, but the wiring zone is not — the panel builder must provide a cover or enclosure over the terminals to meet touch-safe requirements.","metaTitle":"Siemens 3RT1627-1AR61 Capacitor Contactor, 25 kVAr, 400V AC,","metaDescription":"Siemens 3RT1627-1AR61 capacitor contactor, AC-6 rated 25 kVAr at 400V. Phased-out with successor SIRIUS 3RT2. Sourced to order against RFQ. 35A AC-1, 3 NO main contacts, 1 NO auxil","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"135 mm","Width":"45 mm","Height":"100 mm","On The Front":"IP20","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":"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","at AC-1 at 400 V rated value":"35 A","Substance Prohibitance (Date)":"01.07.2006 00:00:00","For Auxiliary And Control Circuit":"screw-type terminals","reference code acc. to IEC 81346-2":"Q","Ambient Temperature During Operation":"-25 ... +60 °C","number of NC contacts for main contacts":"0","number of NO contacts for main contacts":"3","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=518654&mlfb=3RT1627-1AR61","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1627-1AR61/alternatives.json"},"ai":{"faq":[{"question":"Will 3RT1627-1AR61 drop into a panel built for 3RT1023-1AP00?","answer":"Not without changes. The 3RT1627-1AR61 is 135 mm deep versus 91 mm for the 3RT1023-1AP00, and it is a capacitor contactor rather than a general-purpose power contactor. The DIN-rail footprint is the same 45 mm width, but the deeper body may conflict with backpanel wiring or enclosure depth. The auxiliary contact arrangement also differs — the 3RT1627-1AR61 has 1 NO auxiliary, while the 3RT1023-1AP00 has 2 NO."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1627-1AR61","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/3RT1627-1AR61 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}}