{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1SDA038439R1","brand":"ABB","brandSlug":"abb","productSlug":"1SDA038439R1","canonicalUrl":"https://aoctrl.com/abb/1SDA038439R1","factsUrl":"https://aoctrl.com/api/mcp/products/1SDA038439R1","rawCanonicalId":null},"summary":{"shortDescription":"ABB S5N400 molded case circuit breaker, 1SDA038439R1, 400 A rated, 3-pole, fixed thermal-magnetic trip, line/load terminals.","salesMarkdown":"The 1SDA038439R1: The 400 A continuous rating means this breaker handles a 400 A load at 40 °C without derating — sized for a main feeder or a large motor branch circuit. The short-circuit release range of 2000-4000 A (I²t on/off) sets the magnetic trip point; at 2000 A it trips instantaneously, at 4000 A it's guaranteed to trip. This is a standard MCCB for 480 VAC or 600 VAC distribution panels, not a motor-circuit protector (no adjustable overloads).","metaTitle":"ABB S5N400 1SDA038439R1 Molded Case Circuit Breaker, 400 A","metaDescription":"ABB 1SDA038439R1 S5N400 molded case circuit breaker, 400 A rated, 3-pole, current production. Sourced to order against RFQ. Weight 1.36 kg.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Part #":"1SDA038439R1","Weight":"1.36 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":"$1,219.20","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/1SDA038439R1/alternatives.json"},"ai":{"faq":[{"question":"What is the closest alternative to 1SDA038439R1 in the ABB S5 family?","answer":"Within the S5N frame, the key variant is the trip unit rating. This 1SDA038439R1 is the 400 A fixed thermal-magnetic version. A 320 A or 630 A version would be a different order code with the same frame size but different trip rating — not pin-compatible for the same load."},{"question":"Where can I buy 1SDA038439R1 and get current pricing?","answer":"This part is sourced to order against an RFQ through independent distribution. Submit a request for quote (RFQ) to confirm availability and current pricing — stock levels and lead time vary by batch."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/1SDA038439R1","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/1SDA038439R1 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}}