{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2636-1NB33","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2636-1NB33","canonicalUrl":"https://aoctrl.com/siemens/3RT2636-1NB33","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2636-1NB33","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, capacitor contactor, AC-6b 50 kVAr / 400 V, 3-pole, 20-33 V AC/DC, 50/60 Hz, integrated varistor, 1 NO + 1 NC auxiliary contacts, screw terminal, size S2.","salesMarkdown":"The Siemens 3RT2636-1NB33 is a size S2 capacitor contactor rated AC-6b for 50 kVAr at 400 V, 3-pole, with a 20-33 V AC/DC coil. It includes an integrated varistor for surge suppression and comes with 1 NO + 1 NC auxiliary contacts, screw terminals. ## What the AC-6b rating means for fit AC-6b is the utilization category for switching capacitor banks. The integrated varistor suppresses switching transients that capacitor banks generate on make and break. ## Coil and control voltage The 20-33 V AC/DC coil accepts both AC and DC control signals across that voltage window, 50/60 Hz. This wide-range coil simplifies panel wiring — one part number covers 24 V nominal control circuits with tolerance for line drop. ## Panel integration Size S2 mounts on DIN rail in the standard SIRIUS footprint. Screw terminals accept up to the wire gauge typical for 50 kVAr capacitor switching. The 1 NO + 1 NC auxiliary contacts are built in, so no separate aux block is needed for basic feedback or status.","metaTitle":"Siemens 3RT2636-1NB33 Capacitor Contactor, AC-6b 50 kVAr, 40","metaDescription":"Siemens 3RT2636-1NB33 capacitor contactor, AC-6b 50 kVAr at 400 V, 3-pole, 20-33 V AC/DC coil, integrated varistor, 1 NO + 1 NC aux, screw terminal, size S2. Current lifecycle stag","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"title":"3RT2636-1NB33","description":"capacitor contactor, AC-6b 50 kVAr, / 400 V, 3-pole, 20-33 V AC/DC, 50/60 Hz, with integrated varistor, auxiliary contacts: 1 NO + 1 NC, screw terminal, size: S2","lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/817272540fefba536314615904627f18.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1687155&mlfb=3RT2636-1NB33"},"ai":{"faq":[{"question":"What does AC-6b 50 kVAr mean for this contactor?","answer":"AC-6b is the IEC utilization category for capacitor switching. The 50 kVAr rating at 400 V means this contactor is designed to switch a 50 kVAR capacitor bank on a 400 V three-phase supply. The integrated varistor handles switching transients."},{"question":"What is the coil voltage range for 3RT2636-1NB33?","answer":"The coil accepts 20-33 V AC/DC, 50/60 Hz — a wide-range coil that covers 24 V nominal control circuits with tolerance for voltage drop."},{"question":"Where can I buy 3RT2636-1NB33?","answer":"Sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2636-1NB33","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/3RT2636-1NB33 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}