{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1SDA054437R1","brand":"ABB","brandSlug":"abb","productSlug":"1SDA054437R1","canonicalUrl":"https://aoctrl.com/abb/1SDA054437R1","factsUrl":"https://aoctrl.com/api/mcp/products/1SDA054437R1","rawCanonicalId":null},"summary":{"shortDescription":"ABB T5N 400 TMA Molded Case Circuit Breaker, 1SDA054437R1, 400 A frame, 2.06 kgs.","salesMarkdown":"## T5N 400 TMA frame — what the description tells you The ABB 1SDA054437R1 is a T5N 400 TMA molded case circuit breaker (MCCB) in a 400 A frame size. The TMA designation indicates a thermal-magnetic trip unit with adjustable thermal and fixed magnetic settings — the standard choice for general-purpose feeder and motor branch protection in distribution panels. ## Current lifecycle — active production For a BOM line that requires the T5N 400 TMA, this part is the direct, in-production choice — no need to qualify a substitute or manage an obsolescence risk at this time. ## Sourcing this MCCB against an RFQ The 1SDA054437R1 is sourced to order through independent distribution channels. If the BOM calls for this exact order code, the replacement path is the same part number.","metaTitle":"ABB 1SDA054437R1 T5N 400 TMA MCCB, 400 A Frame","metaDescription":"ABB 1SDA054437R1 T5N 400 TMA molded case circuit breaker, 400 A frame. Current lifecycle stage. Sourced to order against an RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Part #":"1SDA054437R1","Weight":"2.06 kgs","Category":"Circuit Breakers","Sub Category":"Molded Case Circuit Breakers","Top Category":"Circuit Breakers, Fuses & Protection","lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/1SDA054437R1/alternatives.json"},"ai":{"faq":[{"question":"How can I order the 1SDA054437R1 or check current pricing?","answer":"Submit an RFQ for the 1SDA054437R1 through this listing. The part is sourced to order; availability and pricing are confirmed at quote time against your target quantity and delivery window."},{"question":"What does the TMA trip unit mean on this ABB MCCB?","answer":"TMA stands for thermal-magnetic adjustable — the thermal element (overload protection) is adjustable, while the magnetic element (short-circuit protection) is fixed. This is the standard trip unit for general-purpose feeder and motor branch protection in the T5N frame."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/1SDA054437R1","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/abb/1SDA054437R1 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}}