{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY6105-7CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY6105-7CC","canonicalUrl":"https://aoctrl.com/siemens/5SY6105-7CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SY6105-7CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY6105-7CC, 1-pole miniature circuit breaker, C-curve, 6 kA breaking capacity per EN 60898, 400 V AC, 1 MW unit, IP20.","salesMarkdown":"The Siemens 5SY6105-7CC is a 1-pole SENTRON miniature circuit breaker with a C tripping characteristic, rated 6 kA breaking capacity per EN 60898 at 400 V AC. This is the standard MCB for branch-circuit protection in industrial control panels — the C-curve handles moderate inrush from motor starters and contactor coils without nuisance tripping, while the 6 kA rating covers most 400 V distribution boards in commercial and light industrial installations. The 18 mm width (1 MW unit) snaps onto a DIN rail; the quick-assembly system and combined top/bottom terminals simplify busbar connection in multi-pole groups. ## What the Ratings Mean for Fit The C-curve means magnetic trip occurs at 5–10× rated current — suited for circuits with transformer inrush or motor starting, not for purely resistive loads where a B-curve would suffice. The 6 kA breaking capacity per EN 60898 is the IEC standard for residential and commercial MCBs; the UL 1077 rating of 5 kA covers North American supplementary protection applications — important if the panel ships to a UL 508A shop. Pollution degree 3 and overvoltage category III confirm it is rated for fixed installations inside an enclosure, not for outdoor or wet locations. The IP20 rating with connected conductors means the terminals are finger-safe only when wired — standard for DIN-rail gear inside a locked panel. ## Integration Notes Mounts in any position on a DIN rail. Installation depth is 70 mm, overall depth 76 mm — factor that into enclosure depth if using a shallow gland plate. The 18 mm width occupies one modular unit; combined top and bottom terminals accept busbar links for daisy-chaining phases. Sealable — the toggle can be locked in the OFF position for lockout/tagout. Halogen-free and silicon-free construction avoids corrosive off-gassing in sealed enclosures near sensitive electronics.","metaTitle":"Siemens 5SY6105-7CC SENTRON MCB, 1P C-Curve, 6 kA","metaDescription":"Siemens 5SY6105-7CC SENTRON miniature circuit breaker, 1-pole, C characteristic, 6 kA per EN 60898, 400 V AC. Active production, sourced to order. Request quote.","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","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","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","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":"Mechanical engineering / industry","Neutral Conductor Switching":"No","Number Of Modular Width Units":"1","Position Of Power Supply Cord":"Any","Tripping Characteristic Class":"C","according to EN 60898 rated value":"6 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","with single-phase operation at AC rated value":"440 V","at AC according to UL 1077 and CSA C22.2 No.235":"5 kA","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":"1.2 W"}},"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=448704&mlfb=5SY6105-7CC","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY6105-7CC/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SY6105-7CC and get current pricing?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"Will 5SY6105-7CC drop into a panel specified around 5SY4140-7?","answer":"Both are 1-pole SENTRON MCBs on the same 18 mm DIN-rail footprint, so the mechanical fit is identical. The difference is the breaking capacity: 5SY6105-7CC carries 6 kA per EN 60898, while 5SY4140-7 is rated higher. Verify the fault level at the panel's point of installation — if the available fault current exceeds 6 kA, the 5SY4140-7 or a higher-rated breaker is required. No rewiring needed for the swap."},{"question":"What compliance documentation does Siemens provide for 5SY6105-7CC?","answer":"The part carries ratings per EN 60898 (6 kA) and UL 1077 / CSA C22.2 No.235 (5 kA), so a Declaration of Conformity for CE marking and a UL recognition file are available from Siemens. The halogen-free and silicon-free construction supports RoHS and REACH compliance declarations."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY6105-7CC","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/5SY6105-7CC 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}}