{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"A2A125TW-2","brand":"ABB","brandSlug":"abb","productSlug":"A2A125TW-2","canonicalUrl":"https://aoctrl.com/abb/A2A125TW-2","factsUrl":"https://aoctrl.com/api/mcp/products/A2A125TW-2","rawCanonicalId":null},"summary":{"shortDescription":"ABB A2A125TW-2 molded case circuit breaker, A2A 250 frame, TMF 125-1250 A thermal-magnetic trip unit, lifecycle stage eol_hot.","salesMarkdown":"## What the A2A125TW-2 is and what it does The ABB A2A125TW-2 is a molded case circuit breaker (MCCB) in the A2A 250 frame, fitted with a TMF 125-1250 thermal-magnetic trip unit. The TMF designation means it uses a thermal element for overload protection and a magnetic element for short-circuit protection, with the trip current adjustable across the 125 A to 1250 A range — a wide band that lets you dial in the protection level to match the downstream load without swapping the breaker body. ## Lifecycle reality — eol_hot and what that means for sourcing For a BOM line that needs this exact order code, the procurement path is a quoted-to-order inquiry. If the project can accommodate a different frame or trip range, an alternative from the current ABB SACE or Tmax series may be a better long-term fit — but no official pin-compatible successor is listed on this record. ## What the TMF 125-1250 trip unit means on the panel The TMF 125-1250 trip block gives you an adjustable overload pickup from 125 A up to 1250 A, plus a fixed magnetic short-circuit trip. On a 250 A frame, the practical setting range for continuous load protection is typically capped by the frame's own thermal rating — you would not run a 1250 A load through a 250 A frame continuously. The adjustment lets you match the breaker to a specific feeder or motor circuit without stocking multiple fixed-trip units.","metaTitle":"ABB A2A125TW-2 A2A 250 TMF 125-1250 MCCB, EOL","metaDescription":"ABB A2A125TW-2 molded case circuit breaker, A2A 250 frame, TMF 125-1250 A thermal-magnetic trip.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"title":"A2A125TW-2","description":"ABB A2A125TW-2 A2A 250 TMF 125-1250|ABB A2A125TW-2 A2A 250 TMF 12","lifecycle_stage":"eol_hot"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/c56f6ad5738ed860d7e6f719b37a6f10.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the A2A125TW-2's trip unit and adjustment range?","answer":"It has a TMF 125-1250 thermal-magnetic trip unit, adjustable from 125 A to 1250 A. The TMF provides thermal overload protection and magnetic short-circuit protection in a single block."},{"question":"What compliance documentation is available for the A2A125TW-2?","answer":"For a part at eol_hot lifecycle stage, documentation may be limited to what the original manufacturer published before phase-out. Confirm documentation requirements at RFQ time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/abb/A2A125TW-2","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/A2A125TW-2 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}