{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S804S-C20","brand":"ABB","brandSlug":"abb","productSlug":"S804S-C20","canonicalUrl":"https://aoctrl.com/abb/S804S-C20","factsUrl":"https://aoctrl.com/api/mcp/products/S804S-C20","rawCanonicalId":null},"summary":{"shortDescription":"ABB S800S series, S804S-C20, 4-pole MCB, 20 A, Trip Curve C, 230 VAC, 50 kA interrupting, DIN rail mount.","salesMarkdown":"The ABB S804S-C20 is a 4-pole miniature circuit breaker from the S800S series, rated 20 A with a Trip Curve C characteristic. The 20 A rating means it carries continuous resistive and motor loads up to that current without nuisance tripping, while the C-curve (5–10× In magnetic trip) handles moderate inrush from small motors, transformers, and lighting banks — typical for mixed industrial loads in a sub-distribution board. The 50 kA interrupting capacity at 230 VAC is the key figure for a plant engineer: it tells you this MCB can safely clear a fault up to 50 kA without welding its contacts or cascading upstream, which is essential for high-fault installations near large transformers or in industrial switchgear. Snaps onto standard DIN rail in the enclosure — 4-pole width means it occupies four modular spaces (72 mm at 18 mm per pole). For a panel-builder wiring a sub-distribution board, the S800S footprint is consistent across the series, so busbar and comb-bridge layouts stay predictable. Rated 230 VAC line-to-line or line-to-neutral; the 50 kA SCCR holds across that voltage, so no additional current-limiting fuse is needed upstream in most configurations.","metaTitle":"ABB S804S-C20 MCB, 4P, C-Curve, 20 A, 50 kA","metaDescription":"ABB S804S-C20 S800S series 4-pole MCB, 20 A, Trip Curve C, 50 kA interrupting at 230 VAC. DIN rail mount. Current production. Available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["4-Pole MCB (DIN Rail)"],"specifications":{"Amps":"20","Type":"Trip Curve C","Poles":"4","title":"S804S-C20","Mounting":"DIN Rail","Volts AC":"230","description":"ABB S804S-C20 MCB S800S 4P C 20A|ABB S804SC20","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/093b6e2ad7cc188e04548948084a7de4.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy the S804S-C20 and get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current availability and pricing."},{"question":"What is the interrupting rating of the S804S-C20?","answer":"50 kA at 230 VAC — sufficient for high-fault industrial sub-distribution without requiring upstream current-limiting fuses."},{"question":"What does Trip Curve C mean on this MCB?","answer":"Magnetic trip between 5× and 10× the rated current (100–200 A instantaneous), which suits moderate inrush from small motors, transformers, and lighting circuits while avoiding nuisance trips from cable charging currents."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/abb/S804S-C20","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/S804S-C20 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}}