{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY5215-7KK11","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY5215-7KK11","canonicalUrl":"https://aoctrl.com/siemens/5SY5215-7KK11","factsUrl":"https://aoctrl.com/api/mcp/products/5SY5215-7KK11","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY5215-7KK11, 2-pole C-curve miniature circuit breaker, rated 1.6 A AC / 440 V DC, 10 kA breaking capacity, 2 MW wide, IP20, railway design.","salesMarkdown":"The Siemens 5SY5215-7KK11 is a 2-pole C-curve miniature circuit breaker from the SENTRON family, rated 1.6 A at AC and 440 V DC with a 10 kA breaking capacity per EN 60898 (AC) and EN 60898-2 (DC). Rated for universal current (AC/DC) with a note: AC supply can land on either pole, but DC polarity must be observed — the marked line/load orientation matters on DC circuits. The 10 kA interrupting rating at 400 V AC and 440 V DC covers most industrial panel fault levels; if your SCCR study calls for 25 kA, step up to the 5SY6 series. Occupies 2 modular width units (36 mm) on a DIN rail, depth 76 mm, height 90 mm — standard 1-pole-per-18 mm footprint, so it drops into any 35 mm rail enclosure without adapters. Mounting position any; fastening via the quick-assembly system (snap-on). Combined terminal top and bottom means the same cage clamp accepts both incoming and outgoing conductors — no separate feed-through lug needed. ## Thermal derating — the real ampacity Rated 1.6 A at 35 °C ambient, but the continuous current drops as the panel heats: 1.52 A at 40 °C, 1.48 A at 45 °C, 1.44 A at 50 °C, 1.4 A at 55 °C, and 1.36 A at 60 °C. If this breaker sits next to high-dissipation drives or transformers in a sealed cabinet, size the load at the 60 °C figure (1.36 A) — the nameplate 1.6 A is only valid in a cool 35 °C environment. Operating range -40 to 75 °C, pollution degree 3, overvoltage category III — it lives in the main distribution panel, not a clean room.","metaTitle":"Siemens 5SY5215-7KK11 SENTRON MCB, 2-Pole C 1.6 A, 10 kA","metaDescription":"Siemens 5SY5215-7KK11 SENTRON miniature circuit breaker, 2-pole C-curve 1.6 A, 10 kA breaking capacity AC/DC, IP20, -40 to 75 °C, railway rated. Sourced 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","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Halogen-Free":"Yes","Silicon-Free":"Yes","Number Of Poles":"2","Type Of Voltage":"AC/DC","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":"1.6 A","at DC / rated value":"440 V","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Combined Terminal Top":"Yes","Design Of The Product":"For railway applications","Number Of Poles / Note":"2P","acc. to DIN EN 61346-2":"F","Energy Limitation Class":"3","at 35 °C / rated value":"1.6 A","at 40 °C / rated value":"1.52 A","at 45 °C / rated value":"1.48 A","at 50 °C / rated value":"1.44 A","at 55 °C / rated value":"1.4 A","at 60 °C / rated value":"1.36 A","Combined Terminal Bottom":"Yes","Suitability For Operation":"universal current","at DC / acc. to EN 60898-2":"10 kA","Number Of Modular Width Units":"2","Tripping Characteristic Class":"C","acc. to EN 60898 / rated value":"10 kA","Position / Of Power Supply Cord":"AC as required, observe DC polarity","Product Feature / Touch Protection":"Yes","Supply Voltage Frequency / Rated Value":"50/60 Hz","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":"15 kA","vibration resistance / acc. to IEC 60068-2-6":"±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz","Product Function / Neutral Conductor Switching":"No","with multi-phase operation / at AC / rated value":"440 V","operating voltage / at DC / rated value / maximum":"500 V","with single-phase operation / at AC / rated value":"440 V","Mechanical Service Life (Operating Cycles) / Typical":"10 000"}},"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=35785&mlfb=5SY5215-7KK11","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY5215-7KK11/alternatives.json"},"ai":{"faq":[{"question":"Will 5SY5215-7KK11 drop into a panel specified around 5SY5250-7 without rewiring?","answer":"Yes, same 2-pole 36 mm width, same DIN-rail footprint, same terminal design. The swap is mechanical — the difference is the 1.6 A vs 50 A rating, so verify the branch circuit load before substituting."},{"question":"What compliance documentation does Siemens provide for 5SY5215-7KK11?","answer":"The MCB carries EN 60898 (AC breaking) and EN 60898-2 (DC breaking) certification. Halogen-free and silicon-free per the spec. Standard Siemens declaration of conformity covers the railway design; RoHS and REACH declarations are available on request."},{"question":"Where can I buy 5SY5215-7KK11 and how is it quoted?","answer":"Sourced to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time on your required quantity."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY5215-7KK11","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/5SY5215-7KK11 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}}