{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"32426","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"32426","canonicalUrl":"https://aoctrl.com/schneider/32426","factsUrl":"https://aoctrl.com/api/mcp/products/32426","rawCanonicalId":null},"summary":{"shortDescription":"trip unit - STR53UE FI - 4 poles 4d","salesMarkdown":null,"metaTitle":null,"metaDescription":null,"metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Range":"ComPact","Standards":"IEC 60947-2","Display type":"Display","Network type":"AC","Trip unit name":"STR53UE FI","Number of poles":"4P 3P","Protection type":"for short time short-circuit protection for instantaneous short-circuit protection for overload protection (long time)","lifecycle_stage":"unknown","Neutral position":"Left","Pollution degree":"3 conforming to IEC 60947","Range of product":"NR400...630","Network frequency":"50/60 Hz","Device application":"Distribution","Trip unit technology":"Electronic","IP degree of protection":"IP40 conforming to IEC 60529","Trip unit rated current":"250 A at 40 °C 400 A at 40 °C 630 A at 40 °C 150 A at 40 °C","Product or component type":"Trip unit","Neutral protection settings":"0.5 x Ir","Protected poles description":"3t 3t + N/2 4t","[Ue] rated operational voltage":"<= 525 V AC 50/60 Hz","Ambient air temperature for storage":"-50...85 °C","Ambient air temperature for operation":"-25...70 °C","Long-time protection delay adjustment type tr":"Adjustable","Short-time protection delay adjustment type tsd":"Adjustable 4 settings","[Tr] Long-Time Protection Delay Adjustment Range":"12...16 s at 6 x Ir 138...200 s at 1.5 x Ir 277...400 s at 1.5 x Ir 3...4 s at 6 x Ir 34...50 s at 1.5 x Ir 6...8 s at 6 x Ir 69...100 s at 1.5 x Ir 8...15 s at 1.5 x Ir 0.2...0.74 s at 7.2 x Ir 0.4...0.5 s at 6 x Ir 1...1.4 s at 7.2 x Ir 1.5...2 s at 6 x Ir 2...2.8 s at 7.2 x Ir 4...5.5 s at 7.2 x Ir 8.2...11 s at 7.2 x Ir","Short-time protection pick-up adjustment type Isd":"Adjustable 8 settings","[tsd] Short-time protection delay adjustment range":"0.015...0.06 s 0.06...0.14 s 0.14...0.23 s 0.23...0.35 s","Instantaneous protection pick-up adjustment type Ii":"Adjustable 8 settings","[Isd] Short-time protection pick-up adjustment range":"1.5...10 x Ir","Long-time pick-up adjustment type Ir (thermal protection)":"Adjustable 48 settings"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/c7f23c971ed0bf72dddc4ca9cad2c732.pdf","sourceUrl":"https://www.se.com/nl/en/product/32426/trip-unit-str53ue-fi-4-poles-4d/","alternativesUrl":"https://aoctrl.com/api/mcp/products/32426/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/32426","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/schneider/32426 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}