{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4103-7CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4103-7CC","canonicalUrl":"https://aoctrl.com/siemens/5SY4103-7CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4103-7CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY4103-7CC, 1-pole miniature circuit breaker, C-curve, 3 A rated, 10 kA breaking capacity per EN 60898, 440 V AC, 50/60 Hz.","salesMarkdown":"The Siemens 5SY4103-7CC is a 1-pole SENTRON miniature circuit breaker with a C-curve trip characteristic, rated 3 A at 230/400 V AC and a 10 kA breaking capacity per EN 60898. This is the part to specify when a 3 A C-curve MCB is called out on the BOM — no substitution guesswork. The 10 kA breaking capacity at 230/400 V AC per EN 60898 means this breaker can safely interrupt a fault current up to 10 kA without welding its contacts or failing catastrophically — that covers most commercial and light industrial panelboards fed by a typical distribution transformer. It will not nuisance-trip on a motor start but will clear a hard short before the upstream feeder breaker sees it. Temperature derating is real on this part. At 40 °C ambient the 3 A rating drops to 2.76 A; at 50 °C it is 2.49 A. If the panel runs hot — say inside a sealed enclosure near a drive — size up one frame or account for the reduced continuous current. The IP20 rating applies only with connected conductors — the busbar stabs are live when the breaker is clipped on but unwired, so keep the panel door locked during commissioning. ## Where it goes in the panel One 18 mm module on a DIN rail, 76 mm deep behind the panel face — leaves room for wiring behind a 100 mm deep enclosure.","metaTitle":"Siemens 5SY4103-7CC SENTRON MCB, 1P C-Curve 3A 10kA","metaDescription":"Siemens 5SY4103-7CC SENTRON miniature circuit breaker, 1-pole, C-curve, 3A, 10kA breaking capacity per EN 60898. Active production. Sourced to order. Request RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"18 mm","title":"5SY4103-7CC","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 230/400 V 10kA, 1-pole, C, 3 A","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"1P","Number Of Poles":"1","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":"3 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":"3 A","at 40 °C / rated value":"2.76 A","at 45 °C / rated value":"2.62 A","at 50 °C / rated value":"2.49 A","at 55 °C / rated value":"2.34 A","Combined Terminal Bottom":"Yes","according to IEC 81346-2":"F","Suitability For Operation":"Mechanical engineering / industry","Neutral Conductor Switching":"No","Number Of Modular Width Units":"1","Tripping Characteristic Class":"C","Position / Of Power Supply Cord":"Any","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","Value Range / Of The Supply Voltage Frequency":"50/60 Hz","with multi-phase operation / at AC / rated value":"440 V","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":"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/627b2c89623df8f0e2809faf734eb16e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=94576&mlfb=5SY4103-7CC"},"ai":{"faq":[{"question":"What is the closest functional second-source for 5SY4103-7CC?","answer":"Within the same SENTRON 5SY family, the 5SY4101-7CV is a 1 A C-curve variant and the 5SY4104-7CV is a 4 A C-curve variant. Neither is a drop-in replacement for a 3 A BOM line — the amp rating governs the overload protection. If the design calls for 3 A, this is the exact order code."},{"question":"Where can I buy 5SY4103-7CC and get current pricing?","answer":"This part is sourced and quoted to order against an RFQ through independent industrial distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4103-7CC","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/5SY4103-7CC 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}}