{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S203P-Z16","brand":"ABB","brandSlug":"abb","productSlug":"S203P-Z16","canonicalUrl":"https://aoctrl.com/abb/S203P-Z16","factsUrl":"https://aoctrl.com/api/mcp/products/S203P-Z16","rawCanonicalId":null},"summary":{"shortDescription":"ABB S203P-Z16, MCB 3P Z 16A 480Y/277 SUPP, Molded Case Circuit Breaker, 0.45 kgs.","salesMarkdown":"The Z-curve trips between 2.5× and 4× In, designed for protection of sensitive electronic loads — semiconductor circuits, PLC power supplies, instrumentation loops — where standard B- or C-curves would nuisance-trip on inrush. The 480Y/277 VAC rating covers 3-phase wye systems common in North American commercial and industrial panels.","metaTitle":"ABB S203P-Z16 MCB 3P Z 16A, Molded Case Circuit Breaker","metaDescription":"ABB S203P-Z16 MCB 3P Z 16A 480Y/277 V. Z-curve for sensitive electronic loads. Current lifecycle stage. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Part #":"S203P-Z16","Weight":"0.45 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":"$40.64","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/S203P-Z16/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy S203P-Z16 and how is it quoted?","answer":"The S203P-Z16 is sourced through independent distribution and quoted to order against an RFQ. Availability and current pricing are confirmed at the time of quote."},{"question":"What is the Z-curve used for on this MCB?","answer":"The Z-characteristic curve (2.5× to 4× In) is designed for protection of sensitive electronic loads — PLCs, instrumentation, semiconductor circuits — where standard B- or C-curves would cause nuisance tripping on inrush."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/S203P-Z16","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/S203P-Z16 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}}