{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S202P-Z4","brand":"ABB","brandSlug":"abb","productSlug":"S202P-Z4","canonicalUrl":"https://aoctrl.com/abb/S202P-Z4","factsUrl":"https://aoctrl.com/api/mcp/products/S202P-Z4","rawCanonicalId":null},"summary":{"shortDescription":"ABB S202P-Z4 miniature circuit breaker, 2-pole, Trip Curve Z, 4 A, 277 VAC, 10 kA interrupting rating, DIN-rail mount.","salesMarkdown":"The ABB S202P-Z4 is a 2-pole miniature circuit breaker rated 4 A with a Trip Curve Z characteristic, meaning it trips nearly instantaneously at 2–3× rated current — designed to protect sensitive electronic loads like PLC power supplies, instrumentation loops, or semiconductor circuits where a standard C-curve would let through too much energy before opening. The 10 kA interrupting rating at 277 VAC (line-to-neutral on a 480Y/277 V system) tells you it can safely clear a fault up to that level without welding contacts or cascading upstream; that SCCR is sufficient for most commercial and light industrial panelboards where the available fault current is under 10 kA. Mounts on standard DIN rail, so it swaps into an existing distribution board or control panel without adapter plates. In a crowded panel, that 2-pole footprint leaves room for adjacent breakers or contactors. The 4 A rating means it's sized for a control transformer secondary, a 24 VDC power supply input, or a small motor circuit — not for a main feeder. Trip Curve Z's fast response also means you need to check selectivity with downstream fuses or smaller breakers; a Z-curve upstream may trip before a C-curve downstream on a high-impedance fault.","metaTitle":"ABB S202P-Z4 MCB 2P Z 4A 277VAC, 10 kA","metaDescription":"ABB S202P-Z4 miniature circuit breaker, 2-pole, Trip Curve Z, 4 A, 277 VAC, 10 kA interrupting rating. Current lifecycle. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["2-Pole MCB (DIN Rail)"],"specifications":{"Amps":"4","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":"$52.07","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/bdf4a03239d479656b0b2cf8f8b7c318.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/S202P-Z4/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings of S202P-Z4?","answer":"It is a 2-pole miniature circuit breaker rated 4 A, Trip Curve Z, 277 VAC, with a 10 kA interrupting rating, mounted on DIN rail."},{"question":"Where can I buy S202P-Z4?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What compliance documentation does ABB provide for S202P-Z4?","answer":"ABB typically provides RoHS and REACH declarations, plus UL and IEC certifications for the S200 series. Specific document numbers are available on request with the RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/S202P-Z4","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-Z4 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}}