{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"A1A020TW-1","brand":"ABB","brandSlug":"abb","productSlug":"A1A020TW-1","canonicalUrl":"https://aoctrl.com/abb/A1A020TW-1","factsUrl":"https://aoctrl.com/api/mcp/products/A1A020TW-1","rawCanonicalId":null},"summary":{"shortDescription":"ABB A1A020TW-1 A1A 100 TMF 20-400 thermal magnetic MCCB, Type Thermal Magnetic, adjustable trip unit 20-400 A, EOL hot lifecycle stage.","salesMarkdown":"## Thermal magnetic protection with adjustable trip range The ABB A1A020TW-1 is a Type Thermal Magnetic moulded-case circuit breaker from the A1A 100 series, fitted with a TMF 20-400 trip block — the adjustable thermal-magnetic unit covers a 20 A to 400 A continuous current range, letting you set the overload and short-circuit protection threshold to match the downstream load without swapping the breaker frame. ## EOL hot — last-time-buy sourcing reality Availability is limited to independent surplus and broker stock. Quantities are lot-specific — confirmed at RFQ against your BOM line. ## What the TMF 20-400 trip block means for coordination The TMF designation indicates a thermal-magnetic trip unit with a fixed magnetic (instantaneous) pickup and an adjustable thermal (overload) element. The 20-400 A range lets you dial in the continuous current rating via the trip dial — useful when the same breaker frame is used across multiple motor or feeder sizes in a panel, reducing spare-part variety.","metaTitle":"ABB A1A020TW-1 A1A 100 TMF 20-400 Thermal Magnetic MCCB","metaDescription":"ABB A1A020TW-1 A1A 100 TMF 20-400 thermal magnetic MCCB. EOL hot lifecycle stage. Sourced to order against RFQ through independent distribution.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Type":"Thermal Magnetic","title":"A1A020TW-1","description":"ABB A1A020TW-1 A1A 100 TMF 20-400 1|ABB A1A020TW-1 A1A 100 TMF 20","lifecycle_stage":"eol_hot"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$126.67","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/bc6cb63cf0b3c225615cb8084ba56327.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the adjustable trip range on the A1A020TW-1?","answer":"The TMF 20-400 trip block covers 20 A to 400 A continuous current, adjustable via the thermal dial on the front of the breaker. The magnetic instantaneous pickup is fixed within the trip unit."},{"question":"What compliance documentation does ABB provide for the A1A020TW-1?","answer":"ABB typically supplies a declaration of conformity and test certificates for the A1A series MCCBs. Specific documents (RoHS, REACH, UL, IEC) are confirmed at RFQ against the serial number and production date code of the available unit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/abb/A1A020TW-1","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/A1A020TW-1 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}}