{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1928-1A","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1928-1A","canonicalUrl":"https://aoctrl.com/siemens/3RV1928-1A","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1928-1A","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS disconnector module, 3RV1928-1A, for Size S0 motor circuit breakers, 45mm width, 94mm depth, visible isolating distance, lockable.","salesMarkdown":"The Siemens SIRIUS 3RV1928-1A is a disconnector module designed specifically for Size S0 motor circuit breakers. It provides a visible isolating distance and can be locked in the disengaged position, giving a positive mechanical disconnect that meets lockout/tagout requirements on the line side of the breaker. This module mounts directly onto the S0 frame and adds 45 mm of width and 94 mm of depth to the assembly. Snap the module onto the left or right side of the S0 circuit breaker — it shares the same 45 mm width and DIN-rail mounting. The visible isolating distance means you can confirm the circuit is open by eye, which is a nice safety check during maintenance. Lock it with a standard padlock in the disengaged position for LOTO.","metaTitle":"Siemens 3RV1928-1A SIRIUS Disconnector Module, Size S0, 94mm","metaDescription":"Siemens SIRIUS 3RV1928-1A disconnector module for Size S0 motor circuit breakers. Visible isolating distance, lockable. Active lifecycle, successor 3RV2928-1A. Quoted on request.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Motor Protection Circuit Breakers (MPCB)"],"specifications":{"Depth":"94mm","Width":"45mm","Height":"51mm","During Storage":"-50 ... +80°C","lifecycle_stage":"current","During Operation":"-20 ... +70°C","Product brand name":"SIRIUS","Product designation":"disconnector module","Suitability for use":"motor circuit breaker","Design of the product":"visible isolating distance, can be locked in disengaged position","Size of the circuit-breaker":"S0"}},"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=126626&mlfb=3RV1928-1A","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1928-1A/alternatives.json"},"ai":{"faq":[{"question":"What replaces 3RV1928-1A?","answer":"The preferred successor is the SIRIUS 3RV2928-1A. It fits the same Size S0 motor circuit breaker frame and provides the same visible isolating distance and lockable disconnection."},{"question":"Where can I buy 3RV1928-1A?","answer":"The 3RV1928-1A is sourced and quoted 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":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1928-1A","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/3RV1928-1A 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}}