{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5TT5540-0CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5TT5540-0CC","canonicalUrl":"https://aoctrl.com/siemens/5TT5540-0CC","factsUrl":"https://aoctrl.com/api/mcp/products/5TT5540-0CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON OUPA overvoltage undervoltage fused switch, 1P+N, 40 A rated operational current at AC, 230 V, IP20, 36 mm width.","salesMarkdown":"The Siemens 5TT5540-0CC is a SENTRON OUPA overvoltage undervoltage fused switch in a 1P+N design. It carries a 40 A rated operational current at AC and is rated for 230 V AC only — that 40 A at 230 V is the full-load switching capacity for this single-pole-plus-neutral form factor. At 36 mm width and 2 modular width units, this switch occupies two standard 18 mm DIN-rail module spaces. The single NO contact (no NC, no CO) is the auxiliary signal output — it closes when the device trips, giving a remote status indication. The 230 V AC operating coil draws from the line it protects; no separate control supply needed.","metaTitle":"Siemens 5TT5540-0CC SENTRON OUPA Overvoltage Undervoltage Fu","metaDescription":"Siemens SENTRON 5TT5540-0CC OUPA overvoltage undervoltage fused switch, 1P+N, 40 A, 230 V AC, IP20. Current lifecycle stage. Available to order via RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Width":"36 mm","Maximum":"230 V","Minimum":"230 V","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"OUPA","protection class IP":"IP20","Design Of The Product":"1P + N","number of CO contacts":"0","number of NC contacts":"0","number of NO contacts":"1","Number Of Modular Width Units":"2","operational current / at AC / rated value":"40 A","Type Of Voltage / Of The Operating Voltage":"AC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=722811&mlfb=5TT5540-0CC","alternativesUrl":"https://aoctrl.com/api/mcp/products/5TT5540-0CC/alternatives.json"},"ai":{"faq":[{"question":"What is 5TT5540-0CC's rated current and voltage?","answer":"The rated operational current is 40 A at AC, and the operating voltage is 230 V AC."},{"question":"Where can I buy 5TT5540-0CC and how is it quoted?","answer":"It is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at the time of quote."},{"question":"What is the physical size of 5TT5540-0CC?","answer":"The width is 36 mm, which corresponds to 2 modular width units on a standard DIN rail."},{"question":"Does 5TT5540-0CC have auxiliary contacts?","answer":"It has 1 normally open (NO) contact and no NC or CO contacts."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5TT5540-0CC","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/5TT5540-0CC 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}}