{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY6520-7CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY6520-7CC","canonicalUrl":"https://aoctrl.com/siemens/5SY6520-7CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SY6520-7CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY6520-7CC miniature circuit breaker, 20 A, C-curve, 2-pole (1P+N), 6 kA per EN 60898, 76 x 36 x 90 mm.","salesMarkdown":"## 20 A C-curve MCB for panel protection The Siemens 5SY6520-7CC is a SENTRON miniature circuit breaker rated 20 A at AC with a C tripping characteristic, configured as 2-pole (1P+N). The C-curve means it trips at 5 to 10 times rated current — suited for mixed resistive and moderate inductive loads where inrush is present but not extreme, such as contactor coils, small motor circuits, or general distribution subfeeds in industrial panels. Breaking capacity is 6 kA per EN 60898 — adequate for most low-fault industrial and commercial sub-distribution boards where the prospective short-circuit current stays under that threshold. For UL 1077 / CSA C22.2 No. 235 recognition, the interrupting rating is 5 kA, so verify the available fault current if the panel carries a UL label. ## Panel integration and environmental fit Occupies 2 modular width units (36 mm) on a DIN rail, with a quick-assembly fastening system and any mounting position. Depth is 76 mm; installation depth 70 mm. The IP20 rating (with connected conductors) is standard for enclosed distribution boards — not for wet or washdown zones. Ambient operating range spans -40 °C to 75 °C, with derated current values above 40 °C: 18.8 A at 40 °C, 17.52 A at 50 °C, 16.84 A at 55 °C. Combined terminal top and bottom, touch protection, and pollution degree 3 (conductive pollution or dry non-conductive pollution that becomes conductive due to condensation — typical in industrial enclosures without climate control). Halogen-free and silicon-free construction matters for environments sensitive to outgassing, such as clean rooms or sealed control cabinets near sensitive electronics.","metaTitle":"Siemens 5SY6520-7CC SENTRON MCB, 20 A, C-Curve, 2-Pole, 6 kA","metaDescription":"Siemens 5SY6520-7CC SENTRON miniature circuit breaker, 20 A rated, C characteristic, 2-pole (1P+N), 6 kA breaking capacity per EN 60898. Current lifecycle stage. Sourced to order a","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"36 mm","title":"5SY6520-7CC","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 230 V 6kA, 1+N-pole, C, 20A","Halogen-Free":"Yes","Silicon-Free":"Yes","Number Of Poles":"2","Type Of Voltage":"AC","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","acc. to IEC 81346-2":"F","at AC / rated value":"20 A","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Combined Terminal Top":"Yes","Number Of Poles / Note":"1P+N","acc. to DIN EN 61346-2":"F","Energy Limitation Class":"3","at 40 °C / rated value":"18.8 A","at 45 °C / rated value":"18.18 A","at 50 °C / rated value":"17.52 A","at 55 °C / rated value":"16.84 A","Combined Terminal Bottom":"Yes","Suitability For Operation":"Mechanical engineering / industry","Number Of Modular Width Units":"2","Tripping Characteristic Class":"C","acc. to EN 60898 / rated value":"6 kA","Position / Of Power Supply Cord":"Any","Product Feature / Touch Protection":"Yes","Supply Voltage Frequency / Rated Value":"50/60 Hz","Influence Of The Surrounding Temperature":"max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C","at AC / acc. to UL 1077 and CSA C22.2 No.235":"5 kA","vibration resistance / acc. to IEC 60068-2-6":"±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz","Product Function / Neutral Conductor Switching":"Yes","operating voltage / at DC / rated value / maximum":"72 V","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/533f8c6d0cbc70088a8fa4cd5559355e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=267451&mlfb=5SY6520-7CC"},"ai":{"faq":[{"question":"Where can I buy 5SY6520-7CC and how do I get a price?","answer":"The 5SY6520-7CC is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What is 5SY6520-7CC's listed depth and width?","answer":"Depth is 76 mm, width is 36 mm (2 modular units), height is 90 mm. Installation depth is 70 mm."},{"question":"What compliance documentation does this brand provide for 5SY6520-7CC?","answer":"The 5SY6520-7CC carries IEC 60898 certification (6 kA breaking capacity) and UL 1077 / CSA C22.2 No. 235 recognition (5 kA). It is halogen-free and silicon-free. Standard Siemens SENTRON documentation includes RoHS and REACH declarations."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY6520-7CC","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/5SY6520-7CC 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}}