{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S202P-Z20","brand":"ABB","brandSlug":"abb","productSlug":"S202P-Z20","canonicalUrl":"https://aoctrl.com/abb/S202P-Z20","factsUrl":"https://aoctrl.com/api/mcp/products/S202P-Z20","rawCanonicalId":null},"summary":{"shortDescription":"ABB, System Pro M Compact S200P, miniature circuit breaker, S202P-Z20, 2-pole, 20 A, Trip Curve Z, 277 VAC, 10 kA interrupting rating.","salesMarkdown":"The ABB S202P-Z20 is a 2-pole miniature circuit breaker from the System Pro M Compact S200P series, rated 20 A with a Trip Curve Z characteristic. The 20 A rating sets the continuous current the breaker carries without tripping — sized for a 20 A branch circuit on a 277 VAC line-to-neutral or 480Y/277 VAC wye system. Trip Curve Z means the magnetic trip operates between 40 and 60 A (2 to 3 times rated current), which is tighter than a B or C curve; it's intended for circuits with minimal inrush, like electronic loads, control transformers, or semiconductor protection where you want fast short-circuit clearing without nuisance trips from moderate overloads. The 10 kA interrupting rating at 277 VAC tells you this breaker can safely clear a fault current up to 10,000 A without welding contacts or rupturing the case. That's the standard interrupting capacity for most commercial panelboards and sub-distribution boards in North America — it coordinates with typical upstream transformer impedances. For higher available fault currents (above 10 kA), you'd need a breaker with a higher SCCR or a current-limiting upstream device. ## Deployment context Snaps onto standard 35 mm DIN rail in an enclosure or panel — the 35 mm width (2 modules) fits two pole spaces in a distribution board. The IP20 enclosure rating means it's protected against solid objects larger than 12 mm (fingers), but not against moisture; install it inside a panel with an IP40 cover or higher for washdown or outdoor environments. The black actuator is sealable and carries I/O marking for lockout/tagout compliance.","metaTitle":"ABB S202P-Z20 MCB 2P Z 20A 277VAC, Trip Curve Z","metaDescription":"ABB S202P-Z20 miniature circuit breaker, 2-pole, 20 A, Trip Curve Z, 277 VAC, 10 kA interrupting rating. Current production. Available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["2-Pole MCB (DIN Rail)"],"specifications":{"Amps":"20","Type":"Trip Curve Z","Poles":"2","Mounting":"DIN Rail","Volts AC":"277","lifecycle_stage":"current","Interrupt Rating AC":"10 kA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/2e8f0074a6d3dcac4712f7548bcc47aa.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/S202P-Z20/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy S202P-Z20 and how do I get a price?","answer":"The S202P-Z20 is sourced and quoted to order through independent distribution. Submit an RFQ for current availability and pricing — confirmed at quote time."},{"question":"What is S202P-Z20's listed amps and trip curve?","answer":"The S202P-Z20 is rated 20 A continuous with a Trip Curve Z characteristic. The magnetic trip operates between 40 and 60 A (2 to 3 times rated current), and the thermal trip is calibrated at 21 A."},{"question":"What compliance documentation does ABB provide for S202P-Z20?","answer":"The S202P-Z20 carries UL and IEC certifications as part of the S200P series. RoHS and REACH compliance documentation is available from ABB's standard product documentation for this family."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/S202P-Z20","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/S202P-Z20 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}}