{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S202-K15","brand":"ABB","brandSlug":"abb","productSlug":"S202-K15","canonicalUrl":"https://aoctrl.com/abb/S202-K15","factsUrl":"https://aoctrl.com/api/mcp/products/S202-K15","rawCanonicalId":null},"summary":{"shortDescription":"ABB S200 series, supplemental protector, S202-K15, 15 A, 2-pole, K-curve, 277 V AC, 6 kA interrupting rating, DIN rail mount.","salesMarkdown":"It's built as a UL 1077 supplemental protector for 277 V AC circuits, with a 6 kA interrupting capacity. The K-curve means it trips between 8x and 12x rated current — designed for inductive loads like motors and transformers where inrush won't nuisance-trip a standard C-curve, but you still want short-circuit protection downstream of a branch-circuit OCPD. Compared to the C-curve siblings (S202M-C10, C16, C20), the K-curve on this unit shifts the magnetic trip threshold higher — 8–12x vs 5–10x for C-curve. That's the difference between holding through a motor start and nuisance-tripping. Same 2-pole DIN-rail footprint, same 6 kA interrupting rating at 277 V AC. If your BOM calls for a C-curve and you're swapping to K, verify the downstream device's let-through energy still coordinates. Two-pole width (roughly 36 mm) fits a standard 12-module panel row with room for six units. Rated 277 V AC phase-to-neutral or 480Y/277 V three-phase — the 6 kA interrupting rating is sufficient for most supplemental protection applications downstream of a branch-circuit breaker. Terminal torque and strip length per the manufacturer's installation instructions on the unit label.","metaTitle":"S202-K15 15A 2-Pole K-Curve Miniature Circuit Breaker, 277V","metaDescription":"S202-K15 15A 2-pole K-curve miniature circuit breaker, 277V AC, 6 kAIC. UL 1077 supplemental protector. 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":"15","Type":"Trip Curve K","Poles":"2","Mounting":"DIN Rail","Volts AC":"277","lifecycle_stage":"current","Interrupt Rating AC":"6 kA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$53.47","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/1b888e9d473400bd32917551d1de57a0.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/S202-K15/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting rating of the S202-K15?","answer":"6 kA at 277 V AC, as a UL 1077 supplemental protector."},{"question":"What does the K-curve mean on this breaker?","answer":"The K-curve trips magnetically at 8x to 12x rated current (120–180 A for this 15 A unit), designed to hold through motor and transformer inrush without nuisance tripping."},{"question":"Where can I buy the S202-K15?","answer":"Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing confirmed at quote time."},{"question":"What compliance documentation does ABB provide for the S202-K15?","answer":"The S202-K15 carries UL 1077 and CSA 22.2 approvals. RoHS and REACH compliance documentation is available from the manufacturer."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/S202-K15","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-K15 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}}