{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S202MUC-K20","brand":"ABB","brandSlug":"abb","productSlug":"S202MUC-K20","canonicalUrl":"https://aoctrl.com/abb/S202MUC-K20","factsUrl":"https://aoctrl.com/api/mcp/products/S202MUC-K20","rawCanonicalId":null},"summary":{"shortDescription":"ABB S200MUC series, S202MUC-K20, 2-pole miniature circuit breaker, Trip Curve K, 20 A, 277 V AC / 500 V DC, 6 kA interrupting rating AC, DIN rail mount.","salesMarkdown":"## S202MUC-K20 — 20 A, Trip Curve K, 2-Pole MCB The ABB S202MUC-K20 is a 2-pole miniature circuit breaker from the S200MUC series, rated for 20 A continuous with a Trip Curve K characteristic. Trip Curve K means the magnetic trip operates at 8 to 12 times the rated current (160–240 A instantaneous), making it suited for loads with moderate inrush — motor circuits, transformers, or lighting banks where a standard Curve C might nuisance-trip on startup. The interrupting rating is 6 kA at 277 V AC and 10 kA at 500 V DC, which covers most commercial and light industrial panelboard fault levels within those voltage limits. ## Panel Integration The 2-pole footprint occupies two modular units (36 mm width). Wire terminals accept copper conductors up to 25 mm², with a combined neutral/phase busbar slot for downstream distribution.","metaTitle":"ABB S202MUC-K20 S200MUC MCB, 2P K 20 A, 277 VAC / 500 VDC","metaDescription":"ABB S202MUC-K20 miniature circuit breaker, S200MUC series, 2-pole, Trip Curve K, 20 A, 277 V AC / 500 V DC, 6 kA interrupting rating AC. Current production. Sourced to order agains","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 K","Poles":"2","Mounting":"DIN Rail","Volts AC":"277","Volts DC":"500","lifecycle_stage":"current","Interrupt Rating AC":"6 kA","Interrupt Rating DC":"10 kA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$224.33","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/f6d08051606195c2ea2a25cb1445372b.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/S202MUC-K20/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings of S202MUC-K20?","answer":"The S202MUC-K20 is a 2-pole miniature circuit breaker rated 20 A, Trip Curve K, 277 V AC / 500 V DC, with a 6 kA interrupting rating at 277 V AC and 10 kA at 500 V DC."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/S202MUC-K20","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/S202MUC-K20 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}}