{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY6203-7CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY6203-7CC","canonicalUrl":"https://aoctrl.com/siemens/5SY6203-7CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SY6203-7CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON, Miniature circuit breaker, 5SY6203-7CC, 2-pole, C-curve, 6 kA IEC 60898, 5 kA UL 1077, 400 VAC, 72 VDC.","salesMarkdown":"## Siemens 5SY6203-7CC — SENTRON 2-Pole C-Curve MCB ## Breaking Capacity and Voltage Ratings For North American panels it carries a 5 kA rating at 440 VAC per UL 1077 and CSA C22.2 No.235, so it qualifies as a supplementary protector in UL 508A industrial control panels. Maximum operating voltage is 440 VAC in single- or multi-phase operation, with a DC rating of 72 V — useful for control circuit isolation in 48 VDC or 60 VDC bus architectures. Combined terminals on both top and bottom accept incoming and outgoing conductors without needing separate busbar connectors for daisy-chaining. Sealed and halogen-free construction suits environments where outgassing or silicone contamination is a concern, like clean rooms or coating lines. ## Environmental and Service Life Mechanical service life 10,000 operating cycles. The 5SY6203-7CC carries IEC 60898 and UL 1077 / CSA C22.2 No.235 certifications, covering European and North American installations. IP20 protection (with connected conductors) means it's touch-safe only when wired into an enclosure — not for wet or washdown zones. The energy limitation class of 3 indicates it limits let-through energy under fault conditions, which aids downstream device coordination.","metaTitle":"Siemens 5SY6203-7CC SENTRON MCB, C-Curve, 2-Pole, 6kA IEC","metaDescription":"Siemens 5SY6203-7CC SENTRON miniature circuit breaker, 2-pole, C-curve, 6 kA per IEC 60898, 5 kA per UL 1077. 400 VAC, 72 VDC max. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["2-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"36 mm","title":"5SY6203-7CC","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 6kA, 2-pole, C, 3 A","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","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":"Mechanical engineering / industry","Neutral Conductor Switching":"No","Number Of Modular Width Units":"2","Position Of Power Supply Cord":"Any","Tripping Characteristic Class":"C","according to EN 60898 rated value":"6 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","operating voltage at DC rated value maximum":"72 V","with multi-phase operation at AC rated value":"440 V","with single-phase operation at AC rated value":"440 V","at AC according to UL 1077 and CSA C22.2 No.235":"5 kA","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":"1.2 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/f7892debe1008bf11086ea44cfbc17f0.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=267329&mlfb=5SY6203-7CC"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY6203-7CC","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/5SY6203-7CC 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}}