{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S802S-B63","brand":"ABB","brandSlug":"abb","productSlug":"S802S-B63","canonicalUrl":"https://aoctrl.com/abb/S802S-B63","factsUrl":"https://aoctrl.com/api/mcp/products/S802S-B63","rawCanonicalId":null},"summary":{"shortDescription":"ABB S802S-B63, High Performance Miniature Circuit Breaker, 2 Pole, 63 Amp, Trip Curve B, DIN Rail Mount, 230 VAC, 50 kA Interrupt Rating.","salesMarkdown":"The ABB S802S-B63 is a 2-pole high-performance miniature circuit breaker (MCB) rated at 63 amps with a Trip Curve B characteristic, designed to snap onto a DIN rail in a standard distribution or control panel. Rated current is 63 A continuous, so the breaker will hold that load indefinitely at 40 °C ambient without nuisance tripping, assuming proper thermal derating for panel fill and adjacent devices. The 2-pole configuration switches both line and neutral (or both phases in a split-phase system), giving full isolation on the load side. ## Panel Fit & Integration The 2-pole width is 36 mm (2 modules of 18 mm each), so it takes up two positions on the rail — plan your gland-plate fill and busbar spacing accordingly. Rated for 230 VAC phase-to-phase or phase-to-neutral, which covers most single-phase and split-phase industrial control circuits.","metaTitle":"S802S-B63 High Performance MCB, 63A, Curve B, 2 Pole","metaDescription":"S802S-B63 high performance miniature circuit breaker, 63 A, Trip Curve B, 2 poles, 50 kA interrupting capacity at 230 VAC. DIN rail mount. Current lifecycle. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["2-Pole MCB (DIN Rail)"],"specifications":{"Amps":"63","Type":"Trip Curve B","Poles":"2","title":"S802S-B63","Mounting":"DIN Rail","Volts AC":"230","description":"High Performance Circuit Breaker, 2P, 63A|High Performance Miniature Circuit Breaker, 2 Pole, 63 Amp","lifecycle_stage":"current","Interrupt Rating AC":"50 kA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$135.89","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/ca95468cb9ba5b51c2ca376efa2f9937.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy the S802S-B63 and get a price?","answer":"The S802S-B63 is sourced to order through independent distribution. Submit an RFQ for current availability and pricing — confirmed at quote time."},{"question":"What is the closest functional second-source to the S802S-B63?","answer":"The closest functional peer is the S202M-C63, which is also a 2-pole, 63 A MCB on DIN rail. Key difference: the S802S-B63 uses Trip Curve B (3–5× In magnetic trip) and offers a 50 kA interrupting rating at 230 VAC, while the S202M-C63 uses Trip Curve C (5–10× In) and has a 6 kA interrupting rating at 277 VAC. The S802S-B63 is the higher-fault-capacity option for industrial sub-boards; the S202M-C63 is a standard-duty MCB for lighter commercial panels."},{"question":"Will the S802S-B63 drop into a panel specified around the S202M-C63?","answer":"Yes, same 2-pole DIN-rail footprint — 36 mm width. The S802S-B63 will physically replace an S202M-C63 without rewiring or busbar changes. But check the trip curve: Curve B trips faster on inrush than Curve C, so if the original panel fed motor or transformer loads that relied on the C-curve's higher magnetic threshold, you may get nuisance tripping. Also verify the available fault current — the S802S-B63's 50 kA rating is far higher than the S202M-C63's 6 kA, so it's fine on high-fault panels but not a direct electrical drop-in for the original design intent."},{"question":"What is the interrupting rating of the S802S-B63?","answer":"The S802S-B63 has a 50 kA interrupting capacity at 230 VAC. That means it can safely clear a bolted fault current up to 50,000 amps without catastrophic failure — suitable for high-fault-capacity industrial distribution boards close to a transformer."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/abb/S802S-B63","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/S802S-B63 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}}