{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY8510-8","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY8510-8","canonicalUrl":"https://aoctrl.com/siemens/5SY8510-8","factsUrl":"https://aoctrl.com/api/mcp/products/5SY8510-8","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY8510-8 miniature circuit breaker, D characteristic, 2-pole 1P+N, 40 kA at 230 V AC per IEC 60947-2, 36 mm wide.","salesMarkdown":"It is a 2-pole device with 1P+N configuration, meaning it switches both the phase and the neutral conductor — the neutral pole is switched but not protected against overcurrent. The breaker carries a 40 kA rated short-circuit capacity at 230 V AC per IEC 60947-2, and 15 kA at 60 V DC per the same standard. For UL 1077 applications, the interrupting rating is 5 kA. The D-curve (tripping characteristic class D) means this MCB is built for high inrush loads — motors, transformers, welding equipment — where the starting current can briefly exceed 10× the rated current. The 15 kA DC rating at 60 V covers DC control circuits or battery-backed loads. The 2-module width (36 mm) occupies two standard 18 mm slots. The neutral conductor is switched internally — no separate neutral bar required for the protected circuit. ## Environmental and mechanical limits Ambient temperature range is -40 °C to +75 °C, with derating above 55 °C: max 95% humidity at 55 °C, 55% at 70 °C, 35% at 75 °C. Vibration resistance per IEC 60068-2-6: ±1 mm at 5 to 25 Hz, 50 m/s² at 25 to 150 Hz.","metaTitle":"Siemens 5SY8510-8 SENTRON MCB, D-curve, 2-pole 1P+N, 40 kA","metaDescription":"Siemens 5SY8510-8 SENTRON miniature circuit breaker, D tripping characteristic, 2-pole 1P+N, 40 kA at 230 V AC per IEC 60947-2. Current lifecycle. Quoted 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":"36 mm","title":"5SY8510-8","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Standard":"IEC / EN 60947-2 / UL1077","description":"Miniature circuit breaker 230 V D=70 mm 25 kA according to EN 60947-2, 1P+N, D10","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","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":"D","according to IEC 60947-2 rated value":"40 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":"0.9 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/e197f3a8309d3230bc8c5cc273f341b6.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=211885&mlfb=5SY8510-8"},"ai":{"faq":[{"question":"Where can I buy 5SY8510-8 and how do I get a price?","answer":"The 5SY8510-8 is sourced and quoted to order against an RFQ through our independent distribution network. Availability and current pricing are confirmed at quote time — send the quantity and delivery window, and we'll come back with a firm offer."},{"question":"Will 5SY8510-8 drop into a panel that was specified around 5SY4101-7CV without rewiring?","answer":"No, the 5SY8510-8 is a different pole configuration (1P+N, 2-pole) and tripping characteristic (D-curve) compared to the 5SY4101-7CV. The 5SY4101-7CV is a 1-pole B-curve breaker. The 5SY8510-8 is 36 mm wide (2 MW) versus 18 mm for the single-pole. Rewiring is required — the neutral switching and wider footprint change the panel layout."},{"question":"What compliance documentation does this brand provide for 5SY8510-8 (RoHS, REACH, UL, IEC)?","answer":"The 5SY8510-8 is certified to IEC/EN 60947-2 and UL 1077. The housing is halogen-free and silicon-free, which supports RoHS and REACH compliance declarations. Standard Siemens SENTRON documentation includes a declaration of conformity and material data sheet."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY8510-8","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/5SY8510-8 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}}