{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S203-Z1","brand":"ABB","brandSlug":"abb","productSlug":"S203-Z1","canonicalUrl":"https://aoctrl.com/abb/S203-Z1","factsUrl":"https://aoctrl.com/api/mcp/products/S203-Z1","rawCanonicalId":null},"summary":{"shortDescription":"ABB, System pro M compact, molded case circuit breaker, S203-Z1, 3-pole, Z-characteristic, 1 A, 480Y/277 V.","salesMarkdown":"The ABB S203-Z1 is a 3-pole molded case circuit breaker (MCCB) from the System pro M compact series, rated 1 A with a Z-characteristic trip curve for 480Y/277 V applications. The Z-curve provides a narrow magnetic trip band, typically 2-3x In, making it suitable for protecting sensitive electronic loads or long cable runs where standard B/C curves might nuisance trip on inrush. ## Panel Integration As a System pro M compact MCCB, the S203-Z1 mounts on DIN rail in standard distribution or control panels. The 1 A Z-curve rating means it occupies the same physical footprint as higher-current siblings in the series, so panel layout and busbar planning remain consistent across the S200 family.","metaTitle":"ABB S203-Z1 3P Z 1A 480Y/277 Molded Case Circuit Breaker","metaDescription":"ABB S203-Z1 3P Z 1A 480Y/277 MCCB. Current lifecycle stage. Sourced to order against RFQ. Confirm availability and pricing at quote time.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Part #":"S203-Z1","Weight":"0.00 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":"$31.75","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/S203-Z1/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy S203-Z1 and how do I get a price?","answer":"The S203-Z1 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is S203-Z1's listed part number?","answer":"The listed part number is S203-Z1."},{"question":"What is the Z-characteristic trip curve used for?","answer":"The Z-characteristic provides a narrow magnetic trip band (typically 2-3x In), making the S203-Z1 suitable for protecting sensitive electronic loads or long cable runs where standard B/C curves might nuisance trip on inrush."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/S203-Z1","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/S203-Z1 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}}