{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4550-6","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4550-6","canonicalUrl":"https://aoctrl.com/siemens/5SY4550-6","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4550-6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY4 series, 5SY4550-6, miniature circuit breaker, 2-pole 1P+N, 50 A, B characteristic, 10 kA (EN 60898), 15 kA (IEC 60947-2), 36 mm wide.","salesMarkdown":"The Siemens 5SY4550-6 is a SENTRON 5SY4 miniature circuit breaker rated 50 A at 230 V AC, 2-pole in a 1P+N configuration. UL 1077 / CSA recognized at 5 kA for North American supplementary protection applications. IP20 with conductors connected — standard for enclosed distribution boards. Combined top and bottom terminals simplify busbar and cable routing. Touch protection is integrated. Halogen-free and silicon-free construction. Pollution degree 3, overvoltage category III. Energy limiting class 3. The lifecycle stage is current — this is an active catalog item, not a phase-out.","metaTitle":"Siemens 5SY4550-6 SENTRON MCB, 50 A, 2-pole, B-curve, 10 kA","metaDescription":"Siemens 5SY4550-6 SENTRON miniature circuit breaker, 50 A, 2-pole 1P+N, B characteristic, 10 kA (EN 60898) / 15 kA (IEC 60947-2). UL 1077 listed. Current lifecycle. Quoted to order","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"36 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Rated Value":"50/60 Hz","Halogen-Free":"Yes","Silicon-Free":"Yes","Mounting type":"Quick assembly system","Number of poles":"2","Type of voltage":"AC","lifecycle_stage":"current","Mounting position":"any","Installation depth":"70 mm","Product brand name":"SENTRON","Degree of pollution":"3","Product designation":"Miniature circuit breaker","Protection class IP":"IP20, with connected conductors","at AC / rated value":"230 V","Overvoltage category":"III","Combined Terminal Top":"Yes","Energy limiting class":"3","Number of width units":"2","Number of poles / Note":"1P+N","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","Combined Terminal Bottom":"Yes","circuit-breaker / Design":"5SY4","Suitability for operation":"Mechanical engineering / industry","Tripping characteristic class":"B","at DC / rated value / maximum":"72 V","acc. to EN 60898 / rated value":"10 kA","Position / of power supply cord":"Any","acc. to IEC 60947-2 / rated value":"15 kA","Product feature / Touch protection":"Yes","Operating current / at AC / rated value":"50 A","Influence of the surrounding temperature":"max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C","at DC / acc. to IEC 60947-2 / rated value":"15 kA","at AC / acc. to UL 1077 and CSA C22.2 No.235":"5 kA","Product function / neutral conductor switching":"Yes","with single-phase operation / at AC / rated value":"250 V","Mechanical service life (switching cycles) / typical":"10 000"}},"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=430314&mlfb=5SY4550-6","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY4550-6/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SY4550-6?","answer":"10 kA per EN 60898, 15 kA per IEC 60947-2, and 5 kA per UL 1077 / CSA C22.2 No. 235."},{"question":"Will 5SY4550-6 drop into a panel specified for 5SY3132-6?","answer":"Both are 36 mm wide SENTRON MCBs on the same DIN-rail footprint, so mechanical fit is the same. The 5SY4550-6 is a 50 A B-curve 2-pole; the 5SY3132-6 is a different rating and characteristic — verify the circuit requirements before swapping."},{"question":"Where can I buy 5SY4550-6 and how is it quoted?","answer":"Sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commercial offer."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4550-6","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/5SY4550-6 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}}