{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY6310-6","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY6310-6","canonicalUrl":"https://aoctrl.com/siemens/5SY6310-6","factsUrl":"https://aoctrl.com/api/mcp/products/5SY6310-6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY6310-6 miniature circuit breaker, 3-pole, B-curve, 6 kA (EN 60898-1) / 15 kA (IEC 60947-2), 3-module width, IP20.","salesMarkdown":"## SENTRON 5SY6310-6 — panel-builder field note The Siemens 5SY6310-6 is a 3-pole SENTRON miniature circuit breaker with B-curve tripping characteristic, rated 6 kA per EN 60898-1 and 15 kA per IEC 60947-2. At 400 V AC it handles the standard 50/60 Hz supply; the DC side is rated 15 kA at 60 V (max 72 V). This is a current-production part — no end-of-life notice on file — so it's a straightforward BOM line for new panels or replacement of an older 5SY-series MCB in the same footprint. ## Breaking capacity — what the dual rating means Two breaking-capacity numbers: 6 kA under EN 60898-1 (the household / commercial standard) and 15 kA under IEC 60947-2 (the industrial standard). The B-curve (3–5× In instantaneous trip) is standard for lighting and general-purpose loads, not motor starts. If your line uses this MCB for a motor branch, confirm the inrush won't nuisance-trip the B characteristic. IP20 with conductors connected — fine for a closed panel, not for washdown zones. Listed to IEC / EN 60898-1, IEC / EN 60947-2, and UL1077 / CSA C22.2 No.235 (5 kA at AC under UL). Halogen-free and silicon-free construction. The manufacturer provides a declaration of conformity covering RoHS and REACH; the standard IEC/EN ratings are printed on the nameplate for panel traceability.","metaTitle":"Siemens 5SY6310-6 SENTRON MCB, 3-pole B-curve, 6kA/15kA","metaDescription":"Siemens 5SY6310-6 SENTRON miniature circuit breaker, 3-pole, B-curve, 6kA (EN 60898-1) / 15kA (IEC 60947-2). Active production. Sourced to order. RFQ for pricing.","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":"5SY6310-6","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Standard":"IEC / EN 60898-1, IEC / EN 60947-2 / UL1077","description":"Miniature circuit breaker 400 V 6kA, 3-pole, B, 10A, D=70 mm","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"3P","Number Of Poles":"3","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","Energy Limitation Class":"3","Combined Terminal Bottom":"Yes","Suitability For Operation":"Mechanical engineering / industry","Neutral Conductor Switching":"No","Number Of Modular Width Units":"3","Position Of Power Supply Cord":"Any","Tripping Characteristic Class":"B","according to EN 60898 rated value":"6 kA","according to IEC 60947-2 rated value":"15 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":"1.3 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$25.40","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/51ba6fa9f362f74ce346745842e8680a.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=535475&mlfb=5SY6310-6"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SY6310-6?","answer":"6 kA per EN 60898-1 and 15 kA per IEC 60947-2 at 400 V AC; at DC it is rated 15 kA at 60 V (max 72 V). Under UL1077 it is 5 kA at AC."},{"question":"Will 5SY6310-6 drop into a panel specified for 5SY4140-7?","answer":"Both are 3-pole SENTRON MCBs in the same 3-module DIN-rail footprint, so the mechanical fit is the same. The 5SY6310-6 carries a B-curve; the 5SY4140-7 is a D-curve. If the panel was designed for a D-curve (motor or transformer loads), swapping to a B-curve may cause nuisance tripping on inrush. Check the load type before substituting."},{"question":"Where can I buy 5SY6310-6 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY6310-6","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/5SY6310-6 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}}