{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1627-1AL21","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1627-1AL21","canonicalUrl":"https://aoctrl.com/siemens/3RT1627-1AL21","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1627-1AL21","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT1627-1AL21 capacitor contactor, AC-6 rated 25 kVAr at 400 V, 230 VAC 50/60 Hz coil, 3-pole, size S0, screw terminals, IP20 front.","salesMarkdown":"The Siemens 3RT1627-1AL21 is a capacitor contactor from the SIRIUS family, rated for AC-6 duty at 25 kVAr / 400 V — meaning it's built specifically for switching capacitor banks in power factor correction (PFC) panels, not general motor loads. The 230 VAC 50/60 Hz coil pulls 64 VA pick-up, 8.4 VA hold, so budget the control transformer accordingly. Three main NO poles handle the capacitor switching; one auxiliary NO contact is on board for status feedback or interlock wiring. ## Integration & Panel Fit IP20 on the front, IP00 at the terminals — the terminals are live when the contactor is installed in an open panel.","metaTitle":"Siemens 3RT1627-1AL21 Capacitor Contactor, AC-6, 25 kVAr, 23","metaDescription":"Siemens 3RT1627-1AL21 capacitor contactor, AC-6 duty, 25 kVAr / 400 V, 230 VAC 50/60 Hz coil, 3-pole, size S0. Phased-out; successor is SIRIUS 3RT2 series. Sourced to order against","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":"230 ... 230 V","at 60 Hz rated value":"230 ... 230 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=520807&mlfb=3RT1627-1AL21","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1627-1AL21/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RT1627-1AL21?","answer":"The part is sourced to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — no single distributor carries it as a stocked line item."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1627-1AL21","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/3RT1627-1AL21 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}}