{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5TT5550-0CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5TT5550-0CC","canonicalUrl":"https://aoctrl.com/siemens/5TT5550-0CC","factsUrl":"https://aoctrl.com/api/mcp/products/5TT5550-0CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON OUPA overvoltage undervoltage fused switch, 5TT5550-0CC, 1P+N, 50 A, 230 V AC, IP20, 36 mm width, 2 modular units.","salesMarkdown":"## What the 50 A and 1P+N mean for your panel The 5TT5550-0CC is a SENTRON OUPA overvoltage undervoltage fused switch — a single-pole-plus-neutral device rated 50 A at 230 V AC. The 1 normally open contact switches the line; the neutral pole is switched as well, giving full isolation on both conductors for the protected circuit. 50 A is the operational current at AC — this is the continuous current the switch can carry under normal load, not a momentary or inrush rating. For motor or transformer loads, factor in the starting current; the switch is designed for overvoltage and undervoltage protection, not as a motor starter. ## Panel fit and protection class The housing is 36 mm wide, occupying 2 modular width units on a DIN rail. IP20 protection means it is touch-safe from the front but not sealed against dust ingress — install inside an enclosure with a minimum IP54 door if the panel sees washdown or outdoor exposure. Rated for 230 V AC only — the minimum and maximum operating voltage are both 230 V, so this is a fixed-voltage device. Do not apply on 400 V line-to-line or DC circuits; the internal coil and arc chamber are sized for AC 230 V. ## Lifecycle and sourcing posture Sourced through the authorized Siemens channel. No stock-holding claim; quoted to order.","metaTitle":"Siemens 5TT5550-0CC SENTRON OUPA Overvoltage Undervoltage","metaDescription":"Siemens 5TT5550-0CC SENTRON OUPA overvoltage undervoltage fused switch, 1P+N, 50 A, 230 V AC, IP20, 36 mm wide. Current production. Quoted to order against 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":"50 A","Type Of Voltage / Of The Operating Voltage":"AC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/64285ee1862e40ae0018eaca3ee32469.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=722812&mlfb=5TT5550-0CC","alternativesUrl":"https://aoctrl.com/api/mcp/products/5TT5550-0CC/alternatives.json"},"ai":{"faq":[{"question":"How can I get pricing and availability for 5TT5550-0CC?","answer":"Submit an RFQ with your target quantity. The part is sourced through the authorized Siemens channel; current pricing and lead time are confirmed at quote time."},{"question":"What is the width of the 5TT5550-0CC?","answer":"The housing is 36 mm wide, which corresponds to 2 modular width units on a standard DIN rail."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5TT5550-0CC","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/5TT5550-0CC 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}}