{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1SDA058308R0001","brand":"ABB","brandSlug":"abb","productSlug":"1SDA058308R0001","canonicalUrl":"https://aoctrl.com/abb/1SDA058308R0001","factsUrl":"https://aoctrl.com/api/mcp/products/1SDA058308R0001","rawCanonicalId":null},"summary":{"shortDescription":"ABB Sace Emax E2S 800 A four-pole withdrawable circuit-breaker, type E2S 08 W MP, fitted with PR121-LSIG electronic trip unit, Icu 85 kA, 70 kg shipping mass.","salesMarkdown":"## What 1SDA058308R0001 actually is The ABB 1SDA058308R0001 is a Sace Emax E2S air circuit-breaker, type E2S 08 W MP, rated In 800 A on a four-pole withdrawable chassis. It ships as a moving-part execution rather than a fixed pattern, which means a cassette/cradle is part of the swap path whenever it goes in or out of a cubicle. Protection is handled by the PR121-LSIG electronic trip unit, giving L, S, I and G functions on the same module — the unit a controls integrator reads first when verifying selectivity against the upstream transformer or the downstream feeder. Icu is listed at 85 kA, which is the short-circuit breaking capacity a panel designer matches to the prospective fault level at the bus. Above 85 kA available fault current the breaker is not the right frame for the job, so that figure is the gate, not the headline In. At 800 A the Emax E2S sits below the upper end of its frame range. Holding rating headroom rather than running the frame at maximum is the conservative read here. Shipping mass is 70 kg, which is what dictates the rigging plan — a two-person lift with the breaker still on its pallet, and a panel baseplate rated for that mass with the withdrawable cassette seated. ## Where this class of breaker is used Emax-frame air circuit-breakers are specified as the main incomer or bus-tie on low-voltage switchboards feeding large motor centres, process MCCs and the auxiliary distribution of generation plants. With four poles and a withdrawable execution, 1SDA058308R0001 fits where the neutral is switched and the breaker has to be racked out for maintenance without disturbing the busbar. ## Sourcing posture","metaTitle":"ABB 1SDA058308R0001 Emax E2S breaker, 800 A 4p","metaDescription":"ABB 1SDA058308R0001 Sace Emax E2S 800 A 4-pole withdrawable circuit-breaker with PR121-LSIG trip unit, Icu 85 kA, supplied against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"In A":"800","Type":"E2S 08 W MP","title":"E2S 800 PR121/P-LSIG In=800A 4pW MP","Icu n / a":"85","description":"E2S 800 PR121/P-LSIG In=800A 4pW MP","Installation":"Bew.Teil","Shipping Weight":"70 Kg","lifecycle_stage":"current","Electron trigger":"PR121-LSIG","Estimated Lead Time":"In stock. Usually ships in 5-7 working days."}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/63da001155adfa017d39d7da0f5e26ab.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is 1SDA058308R0001's listed current rating?","answer":"In is 800 A on the ABB Sace Emax E2S frame, with four poles and Icu 85 kA."},{"question":"Is 1SDA071073R1 a drop-in alternate for 1SDA058308R0001?","answer":"No. 1SDA071073R1 is a Sace Emax.2S 2500 A in a three-pole execution — a different frame size, current class and pole count. It does not interchange with an 800 A 4-pole Emax E2S slot."},{"question":"What type designation and trip unit does 1SDA058308R0001 carry?","answer":"Type E2S 08 W MP with a PR121-LSIG electronic trip unit (L/S/I/G)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/abb/1SDA058308R0001","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/1SDA058308R0001 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}}