{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1926-4CC20","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1926-4CC20","canonicalUrl":"https://aoctrl.com/siemens/3RT1926-4CC20","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1926-4CC20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT1 busbar, 3RT1926-4CC20, 3-phase, for 2 Size S0 contactors, 45 mm modular spacing.","salesMarkdown":"The Siemens 3RT1926-4CC20 is a 3-phase busbar designed to bridge the line-side power terminals of two Size S0 power contactors mounted side-by-side at 45 mm modular spacing. It eliminates individual wiring between the contactors, reducing panel assembly time and potential for loose connections in the main power path. ## Integration note for panel builders This busbar snaps onto the contactor power terminals without tools. The 45 mm spacing matches the standard DIN-rail pitch for S0 contactors, so the contactors mount directly on the rail and the busbar bridges them without additional adapters. Verify the contactor terminal layout matches the busbar's footprint before assembly.","metaTitle":"Siemens 3RT1926-4CC20 3-phase busbar, Size S0, 45 mm spacing","metaDescription":"3RT1926-4CC20 is a 3-phase busbar for 2 Siemens Size S0 contactors, 45 mm modular spacing. Lifecycle stage: current, but phased-out product with successor SIRIUS 3RT2. Sourced to o","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$32.41","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=475708&mlfb=3RT1926-4CC20","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1926-4CC20/alternatives.json"},"ai":{"faq":[{"question":"What replaces the 3RT1926-4CC20?","answer":"The official successor is the SIRIUS 3RT2 series busbar. The 3RT1926-4CC20 is a 3-phase busbar for two Size S0 contactors at 45 mm spacing; the 3RT2 equivalent will share the same footprint and function."},{"question":"What is the modular spacing of this busbar?","answer":"The modular spacing is 45 mm, which matches the standard pitch for two Siemens Size S0 contactors mounted side-by-side on a DIN rail."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1926-4CC20","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/3RT1926-4CC20 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}}