{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1938-1AA00-0FJ0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1938-1AA00-0FJ0","canonicalUrl":"https://aoctrl.com/siemens/3RV1938-1AA00-0FJ0","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1938-1AA00-0FJ0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3RV1938-1AA00-0FJ0, disconnector block M3/50, for Motor Protection Circuit Breakers (MPCB), current lifecycle stage.","salesMarkdown":"The 3RV1938-1AA00-0FJ0: Disconnector block for the M3/50 series of Motor Protection Circuit Breakers (MPCB). Provides isolation between the motor feeder and the protection device for safe maintenance. The block clips onto the MPCB base unit, adding a visible-break disconnection function without extra panel space. No separate enclosure or interlock is required — the block and breaker share the same DIN rail footprint. Torque the M3/50 terminal screws to the Siemens-specified value; under-torqued connections on a disconnector block create a hot spot that derates the assembly.","metaTitle":"Siemens 3RV1938-1AA00-0FJ0 Disconnector Block M3/50, Current Lifecycle","metaDescription":"Siemens 3RV1938-1AA00-0FJ0 disconnector block M3/50 for Motor Protection Circuit Breakers. Active production lifecycle. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Motor Protection Circuit Breakers (MPCB)"],"specifications":{"lifecycle_stage":"current"}},"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=288625&mlfb=3RV1938-1AA00-0FJ0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1938-1AA00-0FJ0/alternatives.json"},"ai":{"faq":[{"question":"What is the 3RV1938-1AA00-0FJ0?","answer":"It is a Siemens disconnector block M3/50 for Motor Protection Circuit Breakers, providing a visible-break isolation function in the motor feeder circuit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1938-1AA00-0FJ0","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/3RV1938-1AA00-0FJ0 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}}