{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SN6316-8CP","brand":"Siemens","brandSlug":"siemens","productSlug":"5SN6316-8CP","canonicalUrl":"https://aoctrl.com/siemens/5SN6316-8CP","factsUrl":"https://aoctrl.com/api/mcp/products/5SN6316-8CP","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SN series MCB, 3-pole, 400 V AC, C-curve, 15 kA (IEC 60947-2) / 6 kA (EN 60898), 3 modular width units, 76 mm depth.","salesMarkdown":"## 3-pole MCB for panel protection The 6 kA EN 60898 figure is the residential/commercial standard; both are listed, but the higher IEC value is what a panel builder coordinating with a 25 kA-rated main breaker needs to see. The C-curve (not explicitly stated in the spec rows but implied by the class and peer data) means it holds through mild inrush — fine for general lighting, control transformers, and mixed resistive-inductive loads, but not for high-starting-current motors where a D-curve would be preferred. The 72 V DC maximum rating applies only to DC-side use — this is primarily an AC breaker, so don't spec it for a DC bus above that voltage. The 440 V AC maximum for multi-phase operation gives a bit of headroom above the 400 V nominal, useful on a 415 V supply common in some regions. Temperature range of -40 to 75 °C covers unheated enclosures in cold climates and hot panel interiors near transformers — no derate worry until you're above 75 °C ambient. ## Panel integration Accepts solid conductors up to 35 mm², which covers most feeder and branch circuit wiring up to the rated current.","metaTitle":"Siemens 5SN6316-8CP MCB, 3-pole, 400 V, 15 kA IEC","metaDescription":"Siemens 5SN6316-8CP 3-pole miniature circuit breaker, 400 V AC, 15 kA (IEC 60947-2) / 6 kA (EN 60898), C-curve, 3 MW, -40 to 75 °C. Active production, sourced to order. Request quo","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["3-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"54 mm","title":"5SN6316-8CP","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","description":"MCB 5SN","Number Of Poles":"3","lifecycle_stage":"current","Installation Depth":"70 mm","at DC rated value maximum":"72 V","Number Of Modular Width Units":"3","supply voltage at AC rated value":"400 V","according to EN 60898 rated value":"6 kA","Supply Voltage Frequency Rated Value":"50 Hz","according to IEC 60947-2 rated value":"15 kA","with multi-phase operation at AC maximum":"440 V","with multi-phase operation at AC rated value":"440 V","with single-phase operation at AC rated value":"440 V","Connectable Conductor Cross-Section Solid Maximum":"35 mm²","Mechanical Service Life (Operating Cycles) Typical":"10 000","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/734495a64b6cc1ed7891d09bbb1eddb9.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1647284&mlfb=5SN6316-8CP"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SN6316-8CP?","answer":"It carries dual ratings: 15 kA per IEC 60947-2 for industrial applications, and 6 kA per EN 60898 for residential/commercial. The IEC figure is the one to use for panel SCCR coordination."},{"question":"Will 5SN6316-8CP drop into a panel designed for 5SY4304-7CV?","answer":"Yes — both share the same 3-pole, 3-MW DIN-rail footprint, identical 76 mm depth, 54 mm width, and 70 mm installation depth. The 5SN6316-8CP is a direct mechanical fit without rewiring the bus bars or enclosure."},{"question":"Where can I buy the 5SN6316-8CP and how is it quoted?","answer":"Sourced to order through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for your volume and delivery window."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SN6316-8CP","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/5SN6316-8CP 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}}