{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S202-K10","brand":"ABB","brandSlug":"abb","productSlug":"S202-K10","canonicalUrl":"https://aoctrl.com/abb/S202-K10","factsUrl":"https://aoctrl.com/api/mcp/products/S202-K10","rawCanonicalId":null},"summary":{"shortDescription":"ABB S200 series, S202-K10, 2-pole miniature circuit breaker, 10 A, Trip Curve K, 277 V AC, 6 kA interrupting rating, DIN rail mount, UL 1077 supplemental protector.","salesMarkdown":"It's a UL 1077 supplemental protector, meaning it's intended for branch-circuit protection inside equipment — not as a service-entrance breaker. The 6 kA interrupting rating at 277 V AC handles moderate fault currents typical of control panels and OEM machinery. ## What the K-Curve Means for Your Panel Trip Curve K is a specialty curve — it sits between B and C on magnetic trip, but with a higher inrush tolerance. The magnetic trip threshold is roughly 8–12x rated current (80–120 A for this 10 A unit), which means it won't nuisance-trip on transformer inrush or motor start currents. That makes it a common pick for inductive loads like contactor coils, small transformers, and solenoid valves where a C-curve might be too sensitive and a D-curve might be too slow for the wire protection. Two-pole width (about 36 mm) fits alongside other S200 series breakers in a multi-pole distribution block. No special busbar or comb needed for single-pole feed; just wire the line and load sides per the UL 1077 installation instructions.","metaTitle":"S202-K10 10A 2-Pole K-Curve Miniature Circuit Breaker, 277V","metaDescription":"S202-K10 10A 2-pole K-curve MCB, 277V AC, 6 kAIC, UL 1077. Active production. Available 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":"10","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":"$12.04","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/1b888e9d473400bd32917551d1de57a0.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/S202-K10/alternatives.json"},"ai":{"faq":[{"question":"What is S202-K10's listed amps and type?","answer":"The S202-K10 is rated 10 A with a Trip Curve K characteristic, 2 poles, 277 V AC, and a 6 kA interrupting rating."},{"question":"Will S202-K10 drop into a panel specified around S202M-C10?","answer":"Yes — both are 2-pole DIN-rail breakers from the same S200 family with the same physical footprint and terminal layout. The difference is the trip curve: S202M-C10 uses a C-curve (magnetic trip 5–10x In) while S202-K10 uses a K-curve (8–12x In). If the panel was designed for a C-curve, swapping to K may change coordination with downstream devices; verify the trip curve is acceptable for the circuit."},{"question":"Where can I buy S202-K10 and how do I get a price?","answer":"The S202-K10 is available to order through our distribution channel. Submit an RFQ for current pricing and availability — we confirm both at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/S202-K10","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-K10 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}}