{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY6516-6","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY6516-6","canonicalUrl":"https://aoctrl.com/siemens/5SY6516-6","factsUrl":"https://aoctrl.com/api/mcp/products/5SY6516-6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON, miniature circuit breaker, 5SY6516-6, B-curve, 1P+N, 6 kA per EN 60898 / 15 kA per IEC 60947-2, 230 V AC, 36 mm width.","salesMarkdown":"It breaks faults at 6 kA per EN 60898 and 15 kA per IEC 60947-2, so you size it for a service entrance or subfeed with available fault current up to that higher figure; the 15 kA IEC rating covers industrial panel coordination where the upstream transformer can deliver that level. The 1P+N construction switches both the line and the neutral conductor, which is required in some regional wiring rules and for circuits where the neutral must be disconnected for isolation. Two modular-width units (36 mm) snap onto DIN rail; the quick-assembly fastening method means it clips in without tools and releases via a screwdriver slot. Rated for 230 V AC single-phase operation, with a DC rating of 60 V (max 72 V). The operating frequency is 50/60 Hz, so it works on either mains standard without derating. Ambient range spans -40 °C to 75 °C, with humidity derating above 55 °C — the spec table gives the curve: max 95% RH at 55 °C, dropping to 35% at 75 °C. That matters if the breaker lives near a steam source or in an unconditioned enclosure. ## Certification and compliance stack The 5SY6516-6 holds dual certification to IEC / EN 60898-1 (the household-standard MCB test) and IEC / EN 60947-2 (the industrial standard for circuit-breaker performance). It also carries UL 1077 and CSA C22.2 No. 235 recognition at 5 kA, which covers North American supplementary-protector applications. Halogen-free and silicon-free construction — relevant if the panel goes into a clean room, semiconductor fab, or any environment where outgassing from a fault could contaminate optics or wafers. The sealable design lets the installer lock the toggle position with a padlock for lockout/tagout compliance. Lifecycle status is current production. The 2 MW width means it occupies two 18 mm slots — plan your DIN-rail fill accordingly. Vibration resistance per IEC 60068-2-6: ±1 mm displacement at 5 to 25 Hz, 50 m/s² acceleration at 25 to 150 Hz. That covers most industrial machinery and conveyor applications without needing additional clamping. ## Sourcing and cross-reference note The closest sibling in the SENTRON 5SY family is the 5SY4116-7CV. Both are B-curve 1P+N breakers with the same 6 kA / 15 kA breaking capacities. The 5SY6516-6 carries the UL/CSA supplementary-protector listing at 5 kA; the 5SY4116-7CV does not. If your BOM requires UL recognition for a North American panel, the 5SY6516-6 is the direct fit — the 5SY4116-7CV would need a separate evaluation. Otherwise, they are dimensionally identical and drop into the same DIN-rail footprint without rewiring.","metaTitle":"Siemens 5SY6516-6 SENTRON MCB, B-Curve 1P+N, 6kA/15kA","metaDescription":"Siemens 5SY6516-6 SENTRON miniature circuit breaker, B-curve, 1P+N, 6kA (EN 60898) / 15kA (IEC 60947-2). Current production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"36 mm","title":"5SY6516-6","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Standard":"IEC / EN 60898-1, IEC / EN 60947-2 / UL1077","description":"Miniature circuit breaker 230 V 6kA, 1+N-pole B, 16A, D=70 mm","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"1P+N","Number Of Poles":"2","lifecycle_stage":"current","Fastening Method":"Quick assembly system","Mounting Position":"any","at AC rated value":"230 V","at DC rated value":"60 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":"Yes","Number Of Modular Width Units":"2","Position Of Power Supply Cord":"Any","Tripping Characteristic Class":"B","according to EN 60898 rated value":"6 kA","according to IEC 60947-2 rated value":"15 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","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":"72 V","with single-phase operation at AC rated value":"250 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":"1.8 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$10.67","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/0b3baafdcf7a45dce6d46ea4b41e6208.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=385455&mlfb=5SY6516-6"},"ai":{"faq":[{"question":"What are the key breaking capacity ratings for 5SY6516-6?","answer":"6 kA per EN 60898, 15 kA per IEC 60947-2, and 5 kA per UL 1077 / CSA C22.2 No. 235."},{"question":"Will 5SY6516-6 drop into a panel specified around 5SY4116-7CV without rewiring?","answer":"Yes — same B-curve, same 1P+N pole configuration, same 36 mm width and DIN-rail mounting. The only difference is the UL/CSA supplementary-protector listing that the 5SY6516-6 carries and the 5SY4116-7CV does not."},{"question":"Where can I buy the 5SY6516-6 and how is it quoted?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What compliance documentation does Siemens provide for 5SY6516-6?","answer":"The breaker is certified to IEC / EN 60898-1, IEC / EN 60947-2, UL 1077, and CSA C22.2 No. 235. It is halogen-free and silicon-free. Standard Siemens declarations of conformity and material compliance (RoHS, REACH) are available on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY6516-6","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/5SY6516-6 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}}