{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL4310-8","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL4310-8","canonicalUrl":"https://aoctrl.com/siemens/5SL4310-8","factsUrl":"https://aoctrl.com/api/mcp/products/5SL4310-8","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL4310-8 miniature circuit breaker, 3-pole, D tripping characteristic, 10 A, 400 V AC, 10 kA breaking capacity per EN 60898 / IEC 60947-2.","salesMarkdown":"The Siemens 5SL4310-8 is a SENTRON-series miniature circuit breaker — 3-pole, D-curve, rated 10 A at 400 V AC with a 10 kA breaking capacity certified to both EN 60898 and IEC 60947-2. The D characteristic means it tolerates inrush currents up to 10–20× the rated current before tripping, which makes it the right choice for motor starters, transformers, and other inductive loads that draw a heavy start-up surge. The 10 kA rating under both EN 60898 (household standard) and IEC 60947-2 (industrial standard) means this breaker can safely interrupt fault currents up to 10 000 A at 400 V without welding its contacts or cascading the fault upstream. That dual certification covers residential infrastructure and light commercial panels. Maximum operating voltage sits at 440 V AC for multi-phase operation, giving a bit of headroom above the nominal 400 V. ## Physical integration and environment Dimensions: 90 mm high, 54 mm wide (3 MW), 76 mm deep, with a 70 mm installation depth into the panel. Sealable with a lead or tag for tamper-proof metering or safety isolation. Supplementary devices (shunt trips, auxiliary contacts, alarm switches) can be snapped onto the right side without extra wiring space.","metaTitle":"Siemens 5SL4310-8 SENTRON MCB, 3P D 10A 10kA","metaDescription":"Siemens 5SL4310-8 SENTRON miniature circuit breaker, 3-pole, D-curve, 10 A, 400 V AC, 10 kA breaking capacity per EN 60898. 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":"5SL4310-8","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 10kA, 3-pole, D, 10 A","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"3P","Number Of Poles":"3","lifecycle_stage":"current","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"2","Product Designation":"Miniature circuit breaker","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Energy Limitation Class":"3","Suitability For Operation":"Residential buildings/infrastructure","at DC rated value maximum":"72 V","Number Of Modular Width Units":"3","Tripping Characteristic Class":"D","supply voltage at AC rated value":"400 V","according to EN 60898 rated value":"10 kA","according to IEC 60947-2 rated value":"10 kA","Type Of Voltage Of The Operating Voltage":"AC","with multi-phase operation at AC maximum":"440 V","Value Range Of The Supply Voltage Frequency":"50/60 Hz","with multi-phase operation at AC rated value":"440 V","Mechanical Service Life (Operating Cycles) Typical":"10 000","Product Extension Installable Supplementary Devices":"Yes","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/c33d831d74aa9e0bbe8cf82f9a2a9e18.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=225959&mlfb=5SL4310-8"},"ai":{"faq":[{"question":"What is the difference between 5SL4310-8 and 5SL4363-7?","answer":"Both are 3-pole SENTRON MCBs with the same physical footprint (54 mm wide, 76 mm deep), same 10 kA breaking capacity, and same voltage ratings. The difference is the tripping curve: 5SL4310-8 uses a D-curve (10–20× In, for motor/transformer loads), while 5SL4363-7 uses a C-curve (5–10× In, for general-purpose and resistive loads). They share the same mechanical service life (10 000 cycles) and both accept supplementary devices."},{"question":"What is the breaking capacity of 5SL4310-8?","answer":"10 kA per both EN 60898 and IEC 60947-2 at 400 V AC, 50/60 Hz."},{"question":"Where can I source 5SL4310-8?","answer":"Sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL4310-8","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/5SL4310-8 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}}