{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY5202-6","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY5202-6","canonicalUrl":"https://aoctrl.com/siemens/5SY5202-6","factsUrl":"https://aoctrl.com/api/mcp/products/5SY5202-6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY5 series, miniature circuit breaker, 2-pole B-curve, 10 kA (EN 60898) / 15 kA DC (IEC 60947-2), 36 mm width, IP20.","salesMarkdown":"## B-curve trip and breaking capacity — what they mean for the panel The Siemens 5SY5202-6 is a 2-pole miniature circuit breaker from the SENTRON 5SY5 series, carrying a B-curve tripping characteristic. That means the magnetic trip operates at 3 to 5 times rated current — it's the right choice for resistive and general-purpose loads where inrush is modest, not for motor-starting or transformer primaries that would nuisance-trip a B-curve. The interrupting rating is 10 kA per EN 60898 and 15 kA at DC per IEC 60947-2, so it handles fault currents up to those levels without cascading upstream. The 36 mm width takes two modular-width units on the DIN rail — standard for a 2-pole MCB in European-style panels. ## Panel fit and environmental limits Mounts in any position on a DIN rail via the quick-assembly system. Depth is 76 mm, installation depth 70 mm — that's the dimension that matters for enclosure depth clearance. IP20 with connected conductors means it's protected against finger contact but not against moisture; keep it inside a rated enclosure. Ambient range runs from -40 °C to 75 °C, so it's fine in unheated electrical rooms or outdoor-rated cabinets. Pollution degree 3 and overvoltage category III — suitable for fixed installations with conductive pollution, typical of industrial panels. ## Approvals and compliance documentation Rated to IEC / EN 60898-2 and UL1077 — the dual standard covers both IEC and North American acceptance for supplementary protection. Halogen-free and silicon-free construction, which matters for outgassing-sensitive environments like clean rooms or sealed enclosures with electronics. The sealable design allows the installer to lock the toggle position after commissioning — useful for tamper-proofing in accessible panels.","metaTitle":"Siemens 5SY5202-6 SENTRON MCB, 2P B-Curve, 10 kA, 36 mm","metaDescription":"Siemens 5SY5202-6 SENTRON miniature circuit breaker, 2-pole B-curve, 10 kA per EN 60898, 15 kA DC per IEC 60947-2. 36 mm wide, IP20. Current production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["2-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"36 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Standard":"IEC / EN 60898-2, UL1077","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"2P","Number Of Poles":"2","lifecycle_stage":"current","Fastening Method":"Quick assembly system","Mounting Position":"any","at AC rated value":"400 V","at DC rated value":"440 V","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"3","Product Designation":"Miniature circuit breaker","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Combined Terminal Top":"Yes","Energy Limitation Class":"3","Combined Terminal Bottom":"Yes","Suitability For Operation":"universal current","Neutral Conductor Switching":"No","Number Of Modular Width Units":"2","Position Of Power Supply Cord":"Any","Tripping Characteristic Class":"B","at DC according to EN 60898-2":"10 kA","according to EN 60898 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/DC","at DC according to IEC 60947-2 rated value":"15 kA","Value Range Of The Supply Voltage Frequency":"50/60 Hz","operating voltage at DC rated value maximum":"500 V","with multi-phase operation at AC rated value":"440 V","with single-phase operation at AC rated value":"440 V","vibration resistance according to IEC 60068-2-6":"±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz","Mechanical Service Life (Operating Cycles) Typical":"10 000","Product Extension Installable Supplementary Devices":"Yes","power loss [W] for rated value of the current at AC in hot operating state per pole":"1.5 W"}},"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=1385697&mlfb=5SY5202-6","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY5202-6/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SY5202-6 and what is the lead time?","answer":"This part is 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."},{"question":"What is 5SY5202-6's closest functional second-source — 5SY5240-7?","answer":"The 5SY5240-7 is a sibling in the same SENTRON 5SY5 family, but it carries a C-curve characteristic (magnetic trip at 5-10x rated current) versus the B-curve on the 5SY5202-6. The B-curve is better for resistive loads; the C-curve suits moderate inrush loads like small motors or transformers. Both are 2-pole, same 36 mm width, same breaking capacity — the trip curve is the deciding factor."},{"question":"Will 5SY5202-6 drop into a panel specified around 5SY5240-7 without rewiring?","answer":"Physically yes — same 36 mm width, same DIN-rail mounting, same depth. The swap is a straight mechanical fit. The functional difference is the trip curve: B-curve on the 5SY5202-6 versus C-curve on the 5SY5240-7. If the circuit was designed expecting C-curve inrush tolerance, a B-curve may nuisance-trip on startup."},{"question":"What compliance documentation does Siemens provide for 5SY5202-6?","answer":"The part carries IEC / EN 60898-2 and UL1077 approvals. It is halogen-free and silicon-free, which supports RoHS and REACH compliance declarations. Standard manufacturer documentation includes the declaration of conformity and the UL recognition file."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY5202-6","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/5SY5202-6 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}}