{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY6550-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY6550-7","canonicalUrl":"https://aoctrl.com/siemens/5SY6550-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SY6550-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY6550-7 miniature circuit breaker, 50 A rated current, C tripping characteristic, 2-pole 1P+N design, 6 kA per EN 60898-1 / 10 kA per IEC 60947-2.","salesMarkdown":"Per the datasheet, it carries 50 A at 35 °C ambient, derating to 47.6 A at 40 °C, 46.35 A at 45 °C, 45.1 A at 50 °C, and 43.75 A at 55 °C — so if your panel ambient runs above 35 °C, the continuous current you can draw is the derated value, not the nameplate 50 A. The breaking capacity is rated 6 kA per EN 60898-1 and 10 kA per IEC 60947-2; the higher 10 kA figure applies when the breaker is used under the industrial standard, which is the one that governs in a panel with a known prospective fault current above 6 kA. It is certified to IEC / EN 60898-1 and IEC / EN 60947-2, plus UL1077 — so it carries the approvals for both European and North American supplementary-protection applications. The sealable feature allows a lock or tag to be fitted to prevent unauthorized reset, which matters on a line where lockout/tagout procedures apply. The SENTRON 5SY series is a broad family of MCBs; the 5SY6550-7 is the 50 A C-curve 2-pole variant. If your BOM specifies a different current or curve, the same physical footprint and terminal design carry across the range — no panel rework needed for a rating swap.","metaTitle":"Siemens 5SY6550-7 SENTRON MCB, 50A C-Curve 2-Pole 1P+N","metaDescription":"Siemens 5SY6550-7 SENTRON miniature circuit breaker, 50A rated current, C tripping characteristic, 2-pole 1P+N design. Rated 6 kA per EN 60898-1 and 10 kA per IEC 60947-2. Current","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","title":"5SY6550-7","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Standard":"IEC / EN 60898-1, IEC / EN 60947-2 / UL1077","description":"Miniature circuit breaker 230 V 6kA, 1+N-pole C, 50 A, D=70 mm","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"1P+N","Number Of Poles":"2","lifecycle_stage":"current","Fastening Method":"Quick assembly system","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"3","Product Designation":"Miniature circuit breaker","at AC / rated value":"50 A","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Combined Terminal Top":"Yes","Energy Limitation Class":"3","according to EN 61346-2":"F","at 35 °C / rated value":"50 A","at 40 °C / rated value":"47.6 A","at 45 °C / rated value":"46.35 A","at 50 °C / rated value":"45.1 A","at 55 °C / rated value":"43.75 A","Combined Terminal Bottom":"Yes","according to IEC 81346-2":"F","Suitability For Operation":"Mechanical engineering / industry","Number Of Modular Width Units":"2","Tripping Characteristic Class":"C","Position / Of Power Supply Cord":"Any","Product Feature / Touch Protection":"Yes","according to EN 60898 / rated value":"6 kA","according to IEC 60947-2 / rated value":"10 kA","Influence Of The Surrounding Temperature":"max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C","Type Of Voltage / Of The Operating Voltage":"AC","Value Range / Of The Supply Voltage Frequency":"50/60 Hz","at DC / according to IEC 60947-2 / rated value":"15 kA","Product Component / Neutral Conductor Switching":"Yes","operating voltage / at DC / rated value / maximum":"72 V","vibration resistance / according to IEC 60068-2-6":"±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz","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,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/15b51d9e29ec2bf51e8f14730f80614d.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=174864&mlfb=5SY6550-7"},"ai":{"faq":[{"question":"What is the breaking capacity of the 5SY6550-7?","answer":"6 kA per EN 60898-1 and 10 kA per IEC 60947-2. The 10 kA rating applies when the breaker is applied under the industrial standard, which is the figure that governs for most control-panel installations."},{"question":"What compliance documentation does Siemens provide for the 5SY6550-7?","answer":"The breaker is certified to IEC / EN 60898-1, IEC / EN 60947-2, and UL1077. It is halogen-free and silicon-free. Standard Siemens declarations of conformity and material compliance (RoHS, REACH) are available on request with the RFQ."},{"question":"Where can I buy the 5SY6550-7?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock count or lead-time figure is published here."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY6550-7","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/5SY6550-7 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}}