{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY8316-8BB08","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY8316-8BB08","canonicalUrl":"https://aoctrl.com/siemens/5SY8316-8BB08","factsUrl":"https://aoctrl.com/api/mcp/products/5SY8316-8BB08","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY8316-8BB08 miniature circuit breaker, 3-pole, 16 A, D tripping characteristic, 30 kA at 400 V AC per IEC 60947-2, 3 MW, IP20.","salesMarkdown":"The Siemens SENTRON 5SY8316-8BB08 is a 3-pole miniature circuit breaker rated 16 A with a D tripping characteristic, meaning it is designed for loads with high inrush currents — motor starters, transformers, and welding equipment — where the magnetic trip threshold (10 to 20 times In) avoids nuisance trips on startup. Under UL 1077 and CSA C22.2 No. 235 it carries a 5 kA interrupting rating, so for North American supplementary protection applications the lower figure is the binding one. The D curve and 16 A rating suit it for motor branch circuits and other inductive loads in mechanical engineering and industrial environments. The 3-pole configuration (3P) switches all three phases simultaneously; there is no switched neutral on this unit. Rated operating voltage is 440 V AC for both single-phase and multi-phase operation. Maximum DC operating voltage is 72 V, so it is not a primary choice for DC circuits above that level. Combined terminals at both top and bottom simplify busbar and cable routing. The breaker is sealable, allowing panel builders to lock the switch position for lockout/tagout compliance. Touch protection is integrated on the terminals.","metaTitle":"Siemens 5SY8316-8BB08 SENTRON MCB, 3P, 16 A, D Curve, 30 kA","metaDescription":"Siemens 5SY8316-8BB08 SENTRON miniature circuit breaker, 3-pole, 16 A, tripping characteristic D, 30 kA IEC breaking capacity, IP20. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["3-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"54 mm","title":"5SY8316-8BB08","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 25kA, 3-pole, 16A, D=70 mm only magnetic tripping","Halogen-Free":"Yes","Silicon-Free":"Yes","Number Of Poles":"3","Type Of Voltage":"AC","lifecycle_stage":"current","Fastening Method":"Quick assembly system","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"3","Product Designation":"Miniature circuit breaker","at AC / rated value":"16 A","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Combined Terminal Top":"Yes","Design Of The Product":"Only magnetic tripping operation","Number Of Poles / Note":"3P","acc. to DIN EN 61346-2":"F","Combined Terminal Bottom":"Yes","Suitability For Operation":"Mechanical engineering / industry","Number Of Modular Width Units":"3","Tripping Characteristic Class":"D","Position / Of Power Supply Cord":"Any","acc. to IEC 60947-2 / rated value":"30 kA","Product Feature / Touch Protection":"Yes","Supply Voltage Frequency / Rated Value":"50/60 Hz","Influence Of The Surrounding Temperature":"max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C","at AC / acc. to UL 1077 and CSA C22.2 No.235":"5 kA","vibration resistance / acc. to IEC 60068-2-6":"±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz","Product Function / Neutral Conductor Switching":"No","with multi-phase operation / at AC / rated value":"440 V","operating voltage / at DC / rated value / maximum":"72 V","with single-phase operation / at AC / rated value":"440 V","Mechanical Service Life (Switching Cycles) / Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/44428c2ce4e279e8ad2ab4f3a7bca9f5.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=468627&mlfb=5SY8316-8BB08"},"ai":{"faq":[{"question":"Where can I buy 5SY8316-8BB08 and get a price?","answer":"The 5SY8316-8BB08 is sourced through independent distribution and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What is the breaking capacity of 5SY8316-8BB08?","answer":"The 5SY8316-8BB08 has a 30 kA breaking capacity at 400 V AC per IEC 60947-2, and a 5 kA interrupting rating per UL 1077 and CSA C22.2 No. 235."},{"question":"What does the D tripping characteristic mean on this breaker?","answer":"The D characteristic means the magnetic trip operates at 10 to 20 times the rated current (160 to 320 A for this 16 A unit), which is designed for loads with high inrush such as motors, transformers, and welding equipment."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY8316-8BB08","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/5SY8316-8BB08 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}}