{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY5110-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY5110-7","canonicalUrl":"https://aoctrl.com/siemens/5SY5110-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SY5110-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY5110-7, miniature circuit breaker, 1-pole, C characteristic, 10 kA (EN 60898) / 15 kA DC (IEC 60947-2), 400 V AC / 220 V DC, 1 MW wide.","salesMarkdown":"## What it is and what it does The Siemens 5SY5110-7 is a SENTRON miniature circuit breaker — one pole, C-curve tripping characteristic, rated for universal current (AC/DC). It breaks fault currents up to 10 kA per EN 60898 and 15 kA per IEC 60947-2 on DC circuits. The C-curve means it trips between 5 and 10 times rated current, so it handles moderate inrush from motor starters or small transformers without nuisance tripping, while still clearing a hard short. Rated 400 V AC (single- or multi-phase) and 220 V DC, with a maximum DC operating voltage of 250 V. The 1 MW width (18 mm) fits standard DIN-rail enclosures; the quick-assembly fastening and any mounting position simplify panel layout. ## Where it fits in the panel Snaps onto a DIN rail in any orientation — the mounting position is unrestricted. Depth is 76 mm (70 mm installation depth behind the panel surface), so it clears a standard 80 mm deep enclosure. The combined terminals top and bottom accept conductors without separate busbar adapters for daisy-chaining. Rated for pollution degree 3 and overvoltage category III, meaning it's suited for fixed installations inside an industrial control panel where conductive pollution could occur. The IP20 rating (with connected conductors) is typical for enclosed breakers — no special sealing needed inside the cabinet. ## What the ratings mean for your decision The 10 kA breaking capacity per EN 60898 covers most commercial and light industrial panelboards where the prospective short-circuit current stays under that threshold. The 15 kA DC rating per IEC 60947-2 is the higher ceiling — if your DC bus can deliver more than 10 kA but less than 15 kA, this breaker still clears it. The C-curve is the default for general-purpose distribution; if your load is purely resistive (heaters, lighting) a B-curve would trip faster, but for mixed loads with small motors this is the right characteristic. Halogen-free and silicon-free construction matters for environments where outgassing during a fault could contaminate optics or electronics — semiconductor fabs, medical device assembly, or cleanroom-adjacent panels. The sealable option (padlockable handle) allows lockout/tagout without an external lockout hasp.","metaTitle":"Siemens 5SY5110-7 SENTRON MCB, 1P C-curve, 10 kA, 400 V AC","metaDescription":"Siemens 5SY5110-7 SENTRON miniature circuit breaker, 1-pole, C characteristic, 10 kA per EN 60898, 15 kA DC per IEC 60947-2. Current production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"18 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Standard":"IEC / EN 60898-2, UL1077","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","at AC rated value":"400 V","at DC rated value":"220 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":"universal current","Neutral Conductor Switching":"No","Number Of Modular Width Units":"1","Position Of Power Supply Cord":"AC as required, observe DC polarity","Tripping Characteristic Class":"C","at DC according to EN 60898-2":"10 kA","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/DC","at DC according to IEC 60947-2 rated value":"15 kA","Value Range Of The Supply Voltage Frequency":"50/60 Hz","operating voltage at DC rated value maximum":"250 V","with multi-phase operation at AC rated value":"440 V","with single-phase operation at AC rated value":"440 V","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","supply voltage with single-phase operation at AC rated value":"230 V","power loss [W] for rated value of the current at AC in hot operating state per pole":"1.1 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$13.97","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=127425&mlfb=5SY5110-7","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY5110-7/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for this MCB?","answer":"1-pole, C-curve, 10 kA per EN 60898, 15 kA DC per IEC 60947-2, rated 400 V AC / 220 V DC, 1 MW wide (18 mm)."},{"question":"Does the 5SY5110-7 drop into a panel designed for the 5SL4363-7?","answer":"Both are 1 MW wide DIN-rail MCBs, so the physical footprint is the same. The 5SY5110-7 is a C-curve device; the 5SL4363-7 is a different order code with its own rating set. Verify the required breaking capacity and voltage before substituting — the 5SY5110-7 carries 10 kA per EN 60898 and 15 kA DC per IEC 60947-2, which may differ from the 5SL4363-7's ratings."},{"question":"What compliance documentation is available for this part?","answer":"It is certified to IEC/EN 60898-2 and UL1077. The construction is halogen-free and silicon-free. Specific RoHS/REACH declarations are part of the standard Siemens documentation package available on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY5110-7","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/5SY5110-7 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}}