{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY5214-7CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY5214-7CC","canonicalUrl":"https://aoctrl.com/siemens/5SY5214-7CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SY5214-7CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY5214-7CC, 2-pole DC miniature circuit breaker, C-curve, 0.3 A at 35 °C, 440 V DC, 10 kA breaking capacity.","salesMarkdown":"## DC miniature circuit breaker for 24 V to 440 V DC control circuits The Siemens 5SY5214-7CC is a SENTRON 2-pole DC miniature circuit breaker with a C-curve tripping characteristic, rated 0.3 A at 35 °C and 440 V DC. At 0.3 A, this is sized for control-circuit protection — think 24 V DC relay panels, PLC power feeds, or signal-conditioner supplies — not main power distribution. The 2-pole design switches both the positive and negative legs in a DC system, which is standard practice for ungrounded or floating DC supplies. ## Thermal derating and environmental limits Rated current is temperature-dependent: 0.3 A at 35 °C, derating to 0.27 A at 40 °C, 0.25 A at 45 °C, 0.23 A at 50 °C, and 0.21 A at 55 °C. In a sealed panel with no forced ventilation, ambient around the breaker can run 10–15 °C above room temperature — so a 40 °C panel ambient means you're effectively sizing for 0.27 A continuous. The surrounding humidity limits (max 95% at 55 °C, 55% at 70 °C, 35% at 75 °C) reflect condensation risk; not a concern in climate-controlled cabinets but relevant for outdoor or unheated enclosures. Storage and operating temperature range spans -40 °C to 75 °C, with vibration resistance per IEC 60068-2-6 (±1 mm at 5–25 Hz, 50 m/s² at 25–150 Hz).","metaTitle":"Siemens 5SY5214-7CC SENTRON MCB, 2P C-curve 0.3A DC, 10kA","metaDescription":"Siemens 5SY5214-7CC SENTRON 2-pole DC miniature circuit breaker, C-curve, 0.3 A at 35 °C, 440 V DC, 10 kA breaking capacity. 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":"5SY5214-7CC","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit-breaker 440 V DC 10kA, 2-pole, C, 0.3 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","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"3","Product Designation":"Miniature circuit breaker","acc. to IEC 81346-2":"F","at DC / rated value":"440 V","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Combined Terminal Top":"Yes","Design Of The Product":"Machine manufacture / industry","acc. to DIN EN 61346-2":"F","at 35 °C / rated value":"0.3 A","at 40 °C / rated value":"0.27 A","at 45 °C / rated value":"0.25 A","at 50 °C / rated value":"0.23 A","at 55 °C / rated value":"0.21 A","Combined Terminal Bottom":"Yes","Suitability For Operation":"Mechanical engineering / industry","Number Of Modular Width Units":"2","Tripping Characteristic Class":"C","Position / Of Power Supply Cord":"Consider polarity","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","at DC / acc. to IEC 60947-2 / rated value":"10 kA","Type Of Voltage / Of The Operating Voltage":"DC","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","operating voltage / at DC / rated value / maximum":"500 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/80d4d55b7e05844f49daf1f85ca57797.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=10750&mlfb=5SY5214-7CC"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 5SY5214-7CC?","answer":"Submit an RFQ through the storefront. The part is sourced through independent distribution; current pricing and stock levels are confirmed at quote time."},{"question":"What is 5SY5214-7CC's rated DC breaking capacity?","answer":"10 kA at 440 V DC per IEC 60947-2, which covers most industrial DC bus and combiner-box fault scenarios."},{"question":"Will 5SY5214-7CC drop into a panel specified around 5SY5240-7 without rewiring?","answer":"Both are 2-pole SENTRON 5SY series breakers with the same 36 mm width and DIN-rail mount, so the physical footprint is identical. The difference is the current rating — 0.3 A vs 40 A — so the wire size and load protection change; the panel cutout and busbar arrangement are the same."},{"question":"What compliance documentation does this brand provide for 5SY5214-7CC?","answer":"As a Siemens SENTRON product, it carries IEC 60947-2 certification for DC breaking capacity. Halogen-free and silicon-free construction is declared. Full RoHS and REACH compliance documentation is available from Siemens on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY5214-7CC","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/5SY5214-7CC 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}}