{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S202-C20","brand":"ABB","brandSlug":"abb","productSlug":"S202-C20","canonicalUrl":"https://aoctrl.com/abb/S202-C20","factsUrl":"https://aoctrl.com/api/mcp/products/S202-C20","rawCanonicalId":null},"summary":{"shortDescription":"ABB S202-C20 miniature circuit breaker, 20 A, 2-pole, Trip Curve C, 277 VAC, 6 kA interrupting rating, DIN rail mount.","salesMarkdown":"The ABB S202-C20 is a 2-pole miniature circuit breaker rated 20 A with a Trip Curve C characteristic, designed for DIN rail mounting in distribution panels and control cabinets. Its 6 kA interrupting rating at 277 VAC covers the fault-clearing requirement for most commercial and light industrial branch circuits — the 6 kA figure is the SCCR the breaker can safely interrupt without welding its contacts or cascading failure upstream. Curve C means the magnetic trip activates at 5 to 10 times rated current (100 to 200 A), so it holds through motor inrush and transformer energization but trips fast on a hard short. ## Panel integration The 2-pole width (2 modules at 17.5 mm each) fits a 36 mm slot in the enclosure. Terminal design accepts 0.5 to 25 mm² copper conductor; torque to 2.5 Nm for solid or stranded wire. Leave at least 10 mm of straight conductor before the terminal to avoid stress on the cage.","metaTitle":"S202-C20 Miniature Circuit Breaker, 20 A, 2-Pole, Curve C, D","metaDescription":"S202-C20 miniature circuit breaker, 20 A, 2-pole, Trip Curve C, 277 VAC, 6 kA interrupting rating. DIN rail mount. Current lifecycle stage. 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":"20","Type":"Trip Curve C","Poles":"2","title":"S202-C20","Mounting":"DIN Rail","Volts AC":"277","description":"Circuit Breaker, Miniature, DIN Rail Mount, 20A, 2P, 480Y/277VAC|Circuit Breaker, Miniature, DIN Rail Mount, 20 Amp, 2 Pole, 480Y/277 Volt AC, C Trip","lifecycle_stage":"current","Interrupt Rating AC":"6 kA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/2165ec0c8c6ba9e9fc65507bee9c4ac6.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the interrupting rating of the S202-C20?","answer":"The S202-C20 has a 6 kA interrupting rating at 277 VAC, sufficient for clearing faults in most commercial branch circuits without upstream coordination issues."},{"question":"Where can I buy the S202-C20?","answer":"The S202-C20 is sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time."},{"question":"Will the S202-C20 drop into a panel specified around the S202M-B10?","answer":"Yes — both share the same 2-pole DIN-rail footprint, 277 VAC rating, and 6 kA interrupting rating. The difference is the trip curve: the S202-C20 uses Curve C (5–10x In) versus the S202M-B10's Curve B (3–5x In). If the original design called for Curve B to avoid nuisance trips on low-inrush loads, the Curve C may hold longer on startup; verify coordination with the downstream load profile before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/abb/S202-C20","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/S202-C20 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}}