{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S201-K16","brand":"ABB","brandSlug":"abb","productSlug":"S201-K16","canonicalUrl":"https://aoctrl.com/abb/S201-K16","factsUrl":"https://aoctrl.com/api/mcp/products/S201-K16","rawCanonicalId":null},"summary":{"shortDescription":"ABB S200 series miniature circuit breaker, S201-K16, 1 pole, 16 A, trip curve K, 277 VAC, 6 kA interrupting rating, DIN rail mount, UL 1077 / CSA 22.2 supplemental protector.","salesMarkdown":"## 16 A, curve K, 1-pole MCB for supplemental protection It mounts on a DIN rail and provides supplemental protection per UL 1077 and CSA 22.2, with a 6 kA interrupting capacity at 277 VAC. The curve K trip profile is designed for inductive loads such as motors and transformers, where inrush currents exceed those of resistive loads — the magnetic trip threshold sits higher than a B-curve but lower than a D-curve, so it avoids nuisance tripping on moderate motor starts while still clearing a hard fault. Single-pole width (roughly 17.5 mm) keeps panel density high — useful when populating a multi-pole distribution board or a control cabinet sub-panel. The S200 series uses a common busbar system, so daisy-chaining several poles for multi-phase circuits is straightforward with the matching ABB busbar comb.","metaTitle":"S201-K16 Miniature Circuit Breaker, 16A, 1P, Curve K, 6 kA","metaDescription":"S201-K16 miniature circuit breaker, 16 A, 1 pole, trip curve K, 6 kA interrupting rating at 277 VAC. UL 1077 / CSA 22.2 supplemental protector. S200 series. Available to order agai","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Amps":"16","Type":"Trip Curve K","Poles":"1","Mounting":"DIN Rail","Volts AC":"277","lifecycle_stage":"current","Interrupt Rating AC":"6 kA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.33","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/1b888e9d473400bd32917551d1de57a0.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/S201-K16/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings of the S201-K16?","answer":"16 A, 1 pole, trip curve K, 277 VAC, 6 kA interrupting rating. It is a supplemental protector per UL 1077 and CSA 22.2."},{"question":"Where can I buy the S201-K16?","answer":"The S201-K16 is available to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"Will the S201-K16 drop into a panel specified for the S201-K1.6?","answer":"Yes — both are 1-pole DIN-rail MCBs from the same S200 series with identical physical footprint and busbar compatibility. The difference is the current rating: 16 A vs 1.6 A. No rewiring or panel modification is needed beyond swapping the branch circuit rating."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/S201-K16","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/S201-K16 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}}