{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S802S-B20","brand":"ABB","brandSlug":"abb","productSlug":"S802S-B20","canonicalUrl":"https://aoctrl.com/abb/S802S-B20","factsUrl":"https://aoctrl.com/api/mcp/products/S802S-B20","rawCanonicalId":null},"summary":{"shortDescription":"ABB S802S series high-performance miniature circuit breaker, 2-pole, 20 A, Trip Curve B, 230 VAC, 50 kA interrupting rating, DIN rail mount.","salesMarkdown":"The ABB S802S-B20 is a 2-pole miniature circuit breaker rated 20 A with Trip Curve B characteristics, designed for 230 VAC circuits and delivering a 50 kA interrupting rating. The 20 A continuous rating and Trip Curve B mean this breaker trips instantaneously at 3–5× rated current (60–100 A), which is the standard protection for resistive loads and general-purpose circuits where inrush is low — lighting, small heaters, control transformers. The 50 kA interrupting capacity at 230 VAC gives substantial fault-current headroom for high-capacity distribution boards, so it can be used downstream of a larger main breaker without worrying about cascading failure. ## Panel integration Snaps onto DIN rail per EN 60715. The 2-pole body occupies two 18 mm module spaces. Wire termination accepts up to 35 mm² conductors; torque the terminals to the value marked on the housing side.","metaTitle":"S802S-B20 Miniature Circuit Breaker, 2P, 20A, Curve B, 50 kA","metaDescription":"S802S-B20 high-performance MCB, 2-pole, 20 A, Trip Curve B, 230 VAC, 50 kA interrupting rating. DIN rail mount. Current-production lifecycle. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["2-Pole MCB (DIN Rail)"],"specifications":{"Amps":"20","Type":"Trip Curve B","Poles":"2","title":"S802S-B20","Mounting":"DIN Rail","Volts AC":"230","description":"High Performance Circuit Breaker, 2P, 20A|High Performance Miniature Circuit Breaker, 2 Pole, 20 Amp","lifecycle_stage":"current","Interrupt Rating AC":"50 kA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/4e352343b639441fbdaacb8333176fa0.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy the S802S-B20?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the interrupting rating of the S802S-B20?","answer":"50 kA at 230 VAC, which is a high-interrupting-capacity (HIC) rating suitable for installation close to high-fault-current sources like transformers or large UPS feeds."},{"question":"What does Trip Curve B mean for this breaker?","answer":"Curve B trips instantaneously at 3 to 5 times rated current (60–100 A for this 20 A unit), making it appropriate for resistive loads and circuits with minimal inrush — lighting, control power, small heating loads."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/abb/S802S-B20","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-B20 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}}