{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S201DC-K1","brand":"ABB","brandSlug":"abb","productSlug":"S201DC-K1","canonicalUrl":"https://aoctrl.com/abb/S201DC-K1","factsUrl":"https://aoctrl.com/api/mcp/products/S201DC-K1","rawCanonicalId":null},"summary":{"shortDescription":"ABB S201DC-K1, 1-pole miniature circuit breaker, Trip Curve K, 1 A, 60 VDC, 10 kA interrupting, DIN rail mount.","salesMarkdown":"## DC branch protection with K-curve selectivity The S201DC-K1 is a 1-pole miniature circuit breaker rated 1 A at 60 VDC, with a K-curve trip characteristic and 10 kA interrupting capacity. The K-curve means the magnetic trip threshold is 8–12× the rated current — designed for inductive loads like DC contactor coils, solenoid valves, and small DC motor circuits where inrush is higher than resistive loads but lower than motor-starting curves like D-curves. ## Peer comparison: S201MUC-K2 The closest functional peer is the S201MUC-K2 — same 1-pole DIN-rail footprint and K-curve, but rated 2 A with a higher interrupting capacity of 10 kA at 250 VDC. The S201MUC-K2 also carries a 277 VAC rating, making it a dual-use AC/DC breaker. For a panel originally specified around the S201MUC-K2, the S201DC-K1 drops into the same DIN-rail slot without rewiring, but the lower 1 A rating and 60 VDC maximum must be checked against the branch circuit's load and voltage.","metaTitle":"S201DC-K1 MCB 1P K 1A 60V DC, 10 kA","metaDescription":"S201DC-K1 1-pole K-curve MCB rated 1 A at 60 VDC, 10 kA interrupting capacity. DIN rail mount. Current production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Amps":"1","Type":"Trip Curve K","Poles":"1","Mounting":"DIN Rail","Volts DC":"60","lifecycle_stage":"current","Interrupt Rating AC":"10 kA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/S201DC-K1/alternatives.json"},"ai":{"faq":[{"question":"What is the S201DC-K1's interrupting rating?","answer":"The S201DC-K1 has a 10 kA interrupting capacity at 60 VDC."},{"question":"What does Trip Curve K mean on the S201DC-K1?","answer":"Trip Curve K means the magnetic trip threshold is 8–12× the 1 A rating, designed for inductive DC loads like contactor coils and solenoid valves."},{"question":"Will the S201DC-K1 fit in a panel built for the S201MUC-K2?","answer":"Yes, both share the same 1-pole DIN-rail footprint, so the S201DC-K1 snaps into the same slot without rewiring. However, verify the branch circuit's load current and voltage — the S201DC-K1 is rated 1 A at 60 VDC, while the S201MUC-K2 is 2 A at 250 VDC."},{"question":"Where can I buy the S201DC-K1?","answer":"The S201DC-K1 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/S201DC-K1","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/S201DC-K1 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}}