{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RB1246-1QG21","brand":"Siemens","brandSlug":"siemens","productSlug":"3RB1246-1QG21","canonicalUrl":"https://aoctrl.com/siemens/3RB1246-1QG21","factsUrl":"https://aoctrl.com/api/mcp/products/3RB1246-1QG21","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3RB1246-1QG21 solid-state overload relay, 6.3 to 25 A, AC 110-120V 50/60Hz, with integrated thermistor protection and internal earth-fault detection.","salesMarkdown":"The Siemens 3RB1246-1QG21 is a solid-state overload relay with integrated thermistor protection, covering a current range of 6.3 to 25 A on a 110 to 120 V AC control supply at 50/60 Hz. It includes internal earth-fault detection and provides bistable outputs: 1NO/1NC for overload/thermistor and 1NO/1NC for earth fault. This class of relay protects motors against overload, phase loss, and thermistor-triggered overtemperature, and adds ground-fault monitoring in a single package — reducing panel wiring and component count compared to separate relay and ground-fault modules.","metaTitle":"Siemens 3RB1246-1QG21 Solid State Overload Relay, 6.3-25 A,","metaDescription":"Siemens 3RB1246-1QG21 solid-state overload relay with integrated thermistor protection, 6.3 to 25 A, AC 110-120V 50/60Hz, internal earth-fault detection. Current lifecycle stage. S","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Overload Relays"],"specifications":{"Part #":"3RB12461QG21","Weight":"0.00 kgs","Category":"Relays","Sub Category":"Solid State Overload Relays","Top Category":"Circuit Breakers, Fuses & Protection","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=295707&mlfb=3RB1246-1QG21","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RB1246-1QG21/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings of the 3RB1246-1QG21?","answer":"The relay is rated for 6.3 to 25 A motor protection, operates on AC 110-120V 50/60 Hz control voltage, and includes integrated thermistor protection and internal earth-fault detection with bistable output contacts (1NO/1NC for overload/thermistor, 1NO/1NC for earth fault)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RB1246-1QG21","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/3RB1246-1QG21 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}}