{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY6402-7CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY6402-7CC","canonicalUrl":"https://aoctrl.com/siemens/5SY6402-7CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SY6402-7CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY6402-7CC, 4-pole miniature circuit breaker, C-curve, 2 A rated at 35 °C, 6 kA breaking capacity per EN 60898, 5 kA per UL 1077.","salesMarkdown":"It's designed for final branch-circuit protection in industrial control panels, distribution boards, and machinery — the kind of panel you find on a conveyor line or a packaging cell. The C-curve means it holds through motor inrush up to about 5–10x rated current, then trips fast on a hard short. ## Sizing and thermal derating — the number that matters The 2 A rating is at 35 °C ambient. Above that, the breaker derates: 1.91 A at 40 °C, 1.86 A at 45 °C, 1.81 A at 50 °C, and 1.75 A at 55 °C. If your panel runs warm — and most do — size the load to the derated figure, not the label. ## Construction details for the panel builder Halogen-free and silicon-free construction — important if the panel goes into a clean room or a food-processing area where outgassing matters. Touch protection is built in. The combined terminal design (top and bottom) accepts standard conductors. Vibration resistance per IEC 60068-2-6: ±1 mm at 5–25 Hz, 50 m/s² at 25–150 Hz — it'll hold up on a machine that shakes. Ambient humidity tolerance: max 95% up to 55 °C, derating to 35% at 75 °C.","metaTitle":"Siemens SENTRON 5SY6402-7CC MCB, 4P C-curve 2A, 6kA","metaDescription":"Siemens SENTRON 5SY6402-7CC miniature circuit breaker, 4-pole, C-curve, 2A rated at 35°C, 6kA IEC breaking capacity. Active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["4-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"72 mm","title":"5SY6402-7CC","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 6kA, 4-pole, C, 2A","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"4P","Number Of Poles":"4","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":"2 A","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Combined Terminal Top":"Yes","acc. to DIN EN 61346-2":"F","Energy Limitation Class":"3","at 35 °C / rated value":"2 A","at 40 °C / rated value":"1.91 A","at 45 °C / rated value":"1.86 A","at 50 °C / rated value":"1.81 A","at 55 °C / rated value":"1.75 A","Combined Terminal Bottom":"Yes","Suitability For Operation":"Mechanical engineering / industry","Number Of Modular Width Units":"4","Tripping Characteristic Class":"C","acc. to EN 60898 / rated value":"6 kA","Position / Of Power Supply Cord":"Any","Product Feature / Touch Protection":"Yes","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","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 Component / Neutral Conductor Switching":"No","with multi-phase operation / at AC / rated value":"440 V","operating voltage / at DC / rated value / maximum":"72 V","with single-phase operation / at AC / rated value":"440 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/9d4577b395fa7a4656c2e8bc43b03a34.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=36438&mlfb=5SY6402-7CC"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 5SY6402-7CC?","answer":"We source the 5SY6402-7CC to order against an RFQ. Submit a request and we'll confirm current pricing and availability at quote time — no automated stock count here, just a real quote."},{"question":"Will 5SY6402-7CC drop into a panel specified around 5SY4301-7CV without rewiring?","answer":"No — the 5SY6402-7CC is a 4-pole breaker (4P), while the 5SY4301-7CV is a 1-pole unit. They share the same SENTRON form factor and DIN-rail mounting, but the pole count difference means a different wiring scheme and a different width (4 MW vs 1 MW). They are not drop-in interchangeable."},{"question":"What compliance documentation does Siemens provide for 5SY6402-7CC?","answer":"The 5SY6402-7CC carries IEC 60898 and UL 1077 / CSA C22.2 No. 235 ratings, meaning it's certified for both IEC and North American installations. It's halogen-free and silicon-free, which supports RoHS/REACH compliance declarations. Standard Siemens declaration of conformity is available."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY6402-7CC","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/5SY6402-7CC 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}}