{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S204-D63","brand":"ABB","brandSlug":"abb","productSlug":"S204-D63","canonicalUrl":"https://aoctrl.com/abb/S204-D63","factsUrl":"https://aoctrl.com/api/mcp/products/S204-D63","rawCanonicalId":null},"summary":{"shortDescription":"ABB S204-D63, 4-pole miniature circuit breaker, Curve D trip characteristic, 63 A, 277 VAC, 10 kA interrupting capacity, DIN rail mount.","salesMarkdown":"The ABB S204-D63 is a 4-pole miniature circuit breaker with a D trip curve, rated 63 A at 277 VAC and a 10 kA interrupting capacity. The 63 A rating and 4-pole configuration suit three-phase loads with a switched neutral, common in European-style distribution panels. DIN-rail mounting means it clips directly into a standard 35 mm rail inside the enclosure — no panel cutting or busbar drilling needed. In a selectivity study, the D curve's higher magnetic threshold gives it better discrimination against downstream C-curve MCBs on motor-starting circuits — the downstream breaker trips first on the inrush, leaving this one closed to serve the rest of the panel.","metaTitle":"ABB S204-D63 MCB 4P D 63A 480Y/277, 10 kA","metaDescription":"ABB S204-D63 MCB, 4-pole, Curve D, 63 A, 277 VAC, 10 kA interrupting capacity. DIN rail mount. Current production. Quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["4-Pole MCB (DIN Rail)"],"specifications":{"Amps":"63","Type":"Trip Curve D","Poles":"4","title":"S204-D63","Mounting":"DIN Rail","Volts AC":"277","description":"ABB S204-D63 MCB 4P D 63A 480Y/277|ABB S204D63 MCB 4P D 63A 480Y","lifecycle_stage":"current","Interrupt Rating AC":"10 kA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/05d22e00d18a397cb172adf51e4fe109.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the S204-D63's interrupting rating?","answer":"The S204-D63 is rated for 10 kA interrupting capacity at 277 VAC, sufficient for most commercial and light industrial distribution panels."},{"question":"Where can I buy the S204-D63?","answer":"We source the S204-D63 through independent distribution and quote it to order against an RFQ. Availability and current pricing are confirmed at quote time."},{"question":"Will the S204-D63 drop into a panel specified for the S204-B32?","answer":"Yes, mechanically identical — same 4-pole DIN-rail footprint, same 277 VAC rating, same 10 kA interrupting capacity. The difference is the trip curve: the D curve handles high inrush (motors, transformers) where the B curve would nuisance-trip. No rewiring needed, but verify the load's inrush profile against the D curve's magnetic trip threshold."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/abb/S204-D63","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/S204-D63 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}