{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1421-1JA10-ZW97","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1421-1JA10-ZW97","canonicalUrl":"https://aoctrl.com/siemens/3RV1421-1JA10-ZW97","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1421-1JA10-ZW97","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3RV1421-1JA10-ZW97 circuit breaker, size S0, for transformer protection, A-release 7...10 A, N-release 208 A, screw terminal, standard switching capacity, multi-unit packaging (14 units).","salesMarkdown":"The Siemens 3RV1421-1JA10-ZW97 is a circuit breaker in the S0 frame size, specifically designed for transformer protection. It carries an A-release (overload) set at 7...10 A and an N-release (short-circuit) set at 208 A, with screw terminals and standard switching capacity. The unit is packaged in multi-unit packs of 14. The A-release range of 7...10 A means this breaker is sized for the inrush and thermal characteristics of a transformer primary, not a motor. The N-release at 208 A provides short-circuit protection coordinated to clear faults before the transformer winding is damaged. For procurement planning, the 'current' status means the part is available through normal Siemens distribution channels. Pricing and lead time are confirmed at the time of quote against an RFQ. Screw terminals accept copper conductors typical for transformer primary circuits up to the rated current. The multi-unit packaging (14 per pack) suits OEM builds or panel shops stocking a common size.","metaTitle":"Siemens 3RV1421-1JA10-ZW97 Circuit Breaker, S0, 7-10 A, Tran","metaDescription":"Siemens 3RV1421-1JA10-ZW97 circuit breaker size S0 for transformer protection, A-release 7-10 A, N-release 208 A. Current lifecycle stage. Available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Motor Protection Circuit Breakers (MPCB)"],"specifications":{"Date 08.06.2015":"Changes preserved © Copyright Siemens AG 2015","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=148440&mlfb=3RV1421-1JA10-ZW97","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1421-1JA10-ZW97/alternatives.json"},"ai":{"faq":[{"question":"What is 3RV1421-1JA10-ZW97 used for?","answer":"It is a circuit breaker size S0 for transformer protection, with an A-release of 7...10 A and N-release of 208 A, screw terminal, standard switching capacity."},{"question":"How do I get current pricing and availability for 3RV1421-1JA10-ZW97?","answer":"Submit an RFQ through the storefront. Availability and current pricing are confirmed at the time of quote through independent distribution channels."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1421-1JA10-ZW97","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/3RV1421-1JA10-ZW97 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}}