{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S202MUC-K6","brand":"ABB","brandSlug":"abb","productSlug":"S202MUC-K6","canonicalUrl":"https://aoctrl.com/abb/S202MUC-K6","factsUrl":"https://aoctrl.com/api/mcp/products/S202MUC-K6","rawCanonicalId":null},"summary":{"shortDescription":"ABB S200MUC series, miniature circuit breaker, 2-pole, K-curve, 6 A, 277 VAC / 500 VDC, 6 kA interrupting, DIN-rail mount.","salesMarkdown":"## What the K-curve means for your load The K-curve is designed for inductive loads — motors, transformers, solenoid valves — where inrush current can be several times the rated current. It trips magnetically at 8 to 12 times the rated current (48 to 72 A for this 6 A breaker), so it won't nuisance-trip on a motor start but still clears a hard short fast. For a 6 A rating, that's a good fit for small contactor coils, control transformers, or DC power supplies on a machine tool. The 2-pole format takes two module widths (36 mm). Spring-cage terminals accept 0.2 to 2.5 mm² solid or stranded wire — strip 8 mm. No special busbar needed for single-phase or DC circuits; the two poles can be used as a single switched line plus neutral, or both poles on a DC supply.","metaTitle":"ABB S202MUC-K6 MCB, 2P K-Curve 6A, DIN Rail","metaDescription":"ABB S202MUC-K6 miniature circuit breaker, 2-pole, K-curve, 6 A. Rated 277 VAC / 500 VDC, 6 kA interrupting. DIN-rail mount. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["2-Pole MCB (DIN Rail)"],"specifications":{"Amps":"6","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":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/9c9f6b5260752064a48fa80df3c36d4e.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/S202MUC-K6/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between S202MUC-K6 and S202M-B10?","answer":"The S202M-B10 is a 10 A B-curve breaker (trips at 3 to 5 times rated current), while the S202MUC-K6 is a 6 A K-curve (trips at 8 to 12 times rated). The K-curve is better for inductive loads; the B-curve is for resistive or general-purpose loads. Both are 2-pole, DIN-rail mount, and share the same interrupting ratings. They are not drop-in substitutes — the trip curve and amp rating differ."},{"question":"Where can I buy S202MUC-K6?","answer":"This part is sourced to order through independent distribution. Submit an RFQ for current pricing and availability — confirmed at quote time."},{"question":"What is the interrupting rating of S202MUC-K6?","answer":"6 kA at 277 VAC and 10 kA at 500 VDC — sufficient for most industrial control panels and DC bus protection."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/S202MUC-K6","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-K6 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}}