{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1SDA051232R1","brand":"ABB","brandSlug":"abb","productSlug":"1SDA051232R1","canonicalUrl":"https://aoctrl.com/abb/1SDA051232R1","factsUrl":"https://aoctrl.com/api/mcp/products/1SDA051232R1","rawCanonicalId":null},"summary":{"shortDescription":"ABB, T2L series, molded case circuit breaker, 1SDA051232R1, 120 A, 3-pole, F IEC.","salesMarkdown":"The ABB 1SDA051232R1 is a T2L-series molded case circuit breaker, rated 120 A, 3-pole, F IEC. This is the fixed thermal-magnetic version — no electronic trip unit, no adjustable curves. The F IEC designation means the breaker's instantaneous trip threshold is fixed at the IEC standard for that frame size, typically 5–10x In depending on the specific T2L variant. For a 120 A breaker, that translates to a magnetic trip somewhere in the 600–1200 A range, which governs short-circuit protection for feeders and downstream distribution. Three-pole construction means it switches all three phases simultaneously, required for three-phase feeder protection. The F IEC curve is a fixed magnetic trip; unlike an adjustable electronic breaker, you cannot dial the instantaneous pickup up or down. That matters when coordinating with downstream breakers or motor starters: the fixed trip point is what it is, so selectivity studies need to account for that fixed threshold. ## Integration context For a panel builder, the fixed thermal-magnetic trip means no auxiliary power supply needed for the trip unit — it's self-powered from the line side. That simplifies wiring but also means no remote trip indication unless you add an auxiliary contact or shunt trip accessory.","metaTitle":"ABB 1SDA051232R1 T2L 120A 3P F IEC Circuit Breaker","metaDescription":"ABB 1SDA051232R1 T2L 120A 3P F IEC molded case circuit breaker. Lifecycle stage: current. Sourced to order against an RFQ. Confirm availability and pricing at quote time.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/1SDA051232R1/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 1SDA051232R1?","answer":"This part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What does the description BKR T2L 120A 3P F IEC mean?","answer":"It identifies this as a T2L-series molded case circuit breaker, rated 120 A, three-pole, with a fixed thermal-magnetic trip characteristic per IEC standards. The F IEC designation indicates a fixed instantaneous trip threshold, typically 5–10x the rated current for this frame size."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/1SDA051232R1","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/1SDA051232R1 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}}