{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S271-K40","brand":"ABB","brandSlug":"abb","productSlug":"S271-K40","canonicalUrl":"https://aoctrl.com/abb/S271-K40","factsUrl":"https://aoctrl.com/api/mcp/products/S271-K40","rawCanonicalId":null},"summary":{"shortDescription":"ABB S271-K40, 40A din rail mount miniature circuit breaker, current production, 0.11 kg.","salesMarkdown":"## Sourcing and availability As a current-production part, the S271-K40 is sourced to order against an RFQ. Availability and current pricing are confirmed at quote time through independent distribution channels.","metaTitle":"ABB S271-K40 40A Din Rail Mount Circuit Breaker, Current","metaDescription":"ABB S271-K40 40A din rail mount circuit breaker, current lifecycle stage. Sourced to order against RFQ. Part # S271-K40, weight 0.11 kgs.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Part #":"S271-K40","Weight":"0.11 kgs","Category":"Circuit Breakers","Sub Category":"Din Rail Mount Circuit Breakers","Top Category":"Circuit Breakers, Fuses & Protection","lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$44.73","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/S271-K40/alternatives.json"},"ai":{"faq":[{"question":"Will the S271-K40 drop into a panel specified for the S273-K40A?","answer":"No. The S271-K40 is single-pole while the S273-K40A is three-pole. They share the same 40A rating but are not footprint-compatible without rewiring."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/S271-K40","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/S271-K40 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}}