{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY8416-8","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY8416-8","canonicalUrl":"https://aoctrl.com/siemens/5SY8416-8","factsUrl":"https://aoctrl.com/api/mcp/products/5SY8416-8","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY8416-8 miniature circuit breaker, 4-pole, D tripping characteristic, 30 kA at 400 V AC per IEC 60947-2, 72 mm wide.","salesMarkdown":"This Siemens SENTRON 5SY8416-8 is a 4-pole miniature circuit breaker with a D tripping characteristic, rated 30 kA at 400 V AC per IEC 60947-2 and 15 kA at 60 V DC. The D-curve means it handles high inrush currents from motor or transformer loads without nuisance tripping — the magnetic trip kicks in at 10 to 20 times rated current, so it's the go-to for drives and welding gear, not lighting or general distribution. The 15 kA at 60 V DC covers DC bus or battery-backed loads. The D-curve (tripping characteristic class D) is the key selection parameter here. Magnetic trip between 10× and 20× In means it ignores the startup surge of a motor or a power supply — you won't get a false trip on a cold start. The 72 mm width (4 modular units) is standard for a 4-pole MCB; it occupies the same slot as any other 4-module wide device. Sealable with a lead seal or sticker for tamper-evident panels.","metaTitle":"Siemens 5SY8416-8 SENTRON MCB, 4P, D-curve, 30 kA","metaDescription":"Siemens SENTRON 5SY8416-8 miniature circuit breaker, 4-pole, D tripping characteristic, 30 kA at 400 V AC per IEC 60947-2. In active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["4-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"72 mm","title":"5SY8416-8","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Standard":"IEC / EN 60947-2 / UL1077","description":"Miniature circuit breaker 400 V D=70 mm 25 kA according to EN 60947-2, 4P, D16","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"4P","Number Of Poles":"4","lifecycle_stage":"current","Fastening Method":"Quick assembly system","Mounting Position":"any","at AC rated value":"400 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":"No","Number Of Modular Width Units":"4","Position Of Power Supply Cord":"Any","Tripping Characteristic Class":"D","according to IEC 60947-2 rated value":"30 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 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":"1.6 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/911c8817fd24db8ae826fa8555210fbf.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=499176&mlfb=5SY8416-8"},"ai":{"faq":[{"question":"Where can I buy the 5SY8416-8 and what is the lead time?","answer":"The 5SY8416-8 is sourced and quoted to order through our independent distribution network. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm lead time and price."},{"question":"What is the breaking capacity of the 5SY8416-8?","answer":"30 kA at 400 V AC per IEC 60947-2, and 15 kA at 60 V DC per IEC 60947-2. Under UL 1077 it's rated 5 kA."},{"question":"Will the 5SY8416-8 drop into a panel specified around the 5SY4140-7?","answer":"Both are 4-pole SENTRON MCBs with the same 72 mm width and DIN-rail mount, so the form factor and footprint are identical. The difference is the tripping curve — the 5SY8416-8 is a D-curve (for motor/transformer loads), while the 5SY4140-7 uses a different characteristic. No rewiring needed if the curve matches your load; if the panel was coordinated for a B or C curve, swapping to a D-curve changes the selectivity and nuisance-trip behavior."},{"question":"What compliance documentation does Siemens provide for the 5SY8416-8?","answer":"The breaker is certified to IEC/EN 60947-2 and UL 1077. It is halogen-free and silicon-free. For specific declarations (RoHS, REACH, CE, UKCA), the manufacturer's documentation is available on request with the order."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY8416-8","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/5SY8416-8 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}}