{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S803C-C50","brand":"ABB","brandSlug":"abb","productSlug":"S803C-C50","canonicalUrl":"https://aoctrl.com/abb/S803C-C50","factsUrl":"https://aoctrl.com/api/mcp/products/S803C-C50","rawCanonicalId":null},"summary":{"shortDescription":"ABB S800C series, S803C-C50 miniature circuit breaker, 3-pole, 50 A, Trip Curve C, DIN rail mount, 230 VAC, 15 kA interrupting capacity.","salesMarkdown":"The 10 kA DC rating covers battery banks or DC bus protection where the arc extinguishes differently than AC. ## Panel integration and DIN-rail fit Snap-on DIN rail mounting per EN 60715. The 3-pole body occupies three modular units (17.5 mm each) — roughly 52.5 mm of rail space. For a panel builder, the fill factor is straightforward: one S803C-C50 replaces three single-pole C50s with a shared trip bar, saving one unit of width. At 15 kA SCCR, the S803C-C50 provides full selectivity with downstream C-curve breakers up to about 6 kA fault level — meaning only the faulted branch trips, not the main. For upstream coordination with a larger MCCB or fuse, the manufacturer's selectivity tables (available separately) show the S803C-C50 discriminates cleanly up to its rated breaking capacity. That matters for a site electrical engineer designing a distribution board where nuisance blackouts are unacceptable.","metaTitle":"ABB S803C-C50 MCB, 3P 50A C-Curve, 15 kA","metaDescription":"ABB S803C-C50 S800C MCB, 50 A, Trip Curve C, 3 poles, DIN rail mount, 15 kA interrupting at 230 VAC. Current lifecycle. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["3-Pole MCB (DIN Rail)"],"specifications":{"Amps":"50","Type":"Trip Curve C","Poles":"3","title":"S803C-C50","Mounting":"DIN Rail","Volts AC":"230","description":"ABB S803C-C50 MCB S800C 3P C 50A|ABB S803CC50 MCB S800C 3P C 5","lifecycle_stage":"current","Interrupt Rating AC":"15 kA","Interrupt Rating DC":"10 kA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$88.90","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/53eb36f6f9ec71cd5de7f3a779158868.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the interrupting capacity of the S803C-C50?","answer":"15 kA at 230 VAC and 10 kA on DC circuits — that is the maximum fault current the breaker can safely interrupt without damage."},{"question":"Where can I buy the S803C-C50 and how is it quoted?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"Will the S803C-C50 drop into a panel wired for a 2-pole S202M-C63?","answer":"No — the S803C-C50 is a 3-pole device with a 50 A rating, while the S202M-C63 is a 2-pole 63 A breaker. The pole count and footprint differ; you would need to rewire and allow extra DIN-rail width for the third pole."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/abb/S803C-C50","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/S803C-C50 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}}