{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S203P-Z32","brand":"ABB","brandSlug":"abb","productSlug":"S203P-Z32","canonicalUrl":"https://aoctrl.com/abb/S203P-Z32","factsUrl":"https://aoctrl.com/api/mcp/products/S203P-Z32","rawCanonicalId":null},"summary":{"shortDescription":"ABB, System Pro M Compact S200P, miniature circuit breaker, 3-pole Z-curve 32 A, 480Y/277 VAC, 50/60 Hz, magnetic trip.","salesMarkdown":"It handles 480Y/277 VAC at 50/60 Hz — a common voltage for North American 277 V lighting and control panels fed from a 480/277 V wye secondary. ## Z-curve trip: what it means for the line Z-curve breakers trip magnetically at 2–3× rated current (64–96 A for this 32 A unit). That's tighter than a B-curve (3–5×) and much tighter than a C-curve (5–10×). In a turbine nacelle or motor control center, Z-curve is the go-to for protecting sensitive semiconductor loads, control transformers, or long cable runs where a standard C-curve would let a fault cook the wiring before it trips. The magnetic trip acts fast — no thermal delay — so a hard short clears before the upstream feeder breaker sees it.","metaTitle":"ABB S203P-Z32 MCB 3P Z 32A 480Y/277 VAC, Miniature Circuit B","metaDescription":"ABB S203P-Z32 miniature circuit breaker, 3-pole Z-curve 32 A, 480Y/277 VAC, 50/60 Hz, magnetic trip. Current lifecycle stage. Sourced to order against an RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"title":"S203P-Z32","Part #":"S203P-Z32","Weight":"0.45 kgs","Category":"Circuit Breakers","description":"Abb S203p-z32 Mcb 3p Z 32a 480y/277|Miniature Circuit Breaker; System Pro M Compact; S200p; Voltage Rating: 400, 480y/277 Vac; Amperage Rating: 32 Amp; Frequency Rating: 50/60 Hz; Magnetic Trip","Sub Category":"Molded Case Circuit Breakers","Top Category":"Circuit Breakers, Fuses & Protection","lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$55.88","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/ba9ef0889fe792bb5eab276275f6b3b7.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy S203P-Z32 and how do I get a price?","answer":"This part is sourced to order through independent distribution. Submit an RFQ — availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/abb/S203P-Z32","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-Z32 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}}