{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY6325-8CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY6325-8CC","canonicalUrl":"https://aoctrl.com/siemens/5SY6325-8CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SY6325-8CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY6325-8CC miniature circuit breaker, 3-pole, D tripping characteristic, 25 A rated current, 6 kA breaking capacity per EN 60898, 400 V AC.","salesMarkdown":"The Siemens 5SY6325-8CC is a SENTRON miniature circuit breaker — 3-pole, D-curve, 25 A, rated 6 kA per EN 60898 at 400 V AC. Under UL 1077 and CSA C22.2 No. 235 it's rated 5 kA — a useful cross-reference if the job spec calls for North American supplementary protection rather than the IEC branch-circuit standard. The 25 A rating is the continuous current at 40 °C ambient; above that, the thermal curve derates per the surrounding-temperature influence table (max 95% RH at 55 °C, dropping to 35% at 75 °C). Three modular-width units (54 mm wide) on a standard DIN rail. ## D-curve selection context The D-curve is the least sensitive of the standard MCB characteristics — magnetic trip between 10× and 20× In. For a 25 A MCB, that means the magnetic element won't operate below about 250 A instantaneous, and may hold up to 500 A for a few milliseconds. That's deliberately slow to ride through the starting surge of a 7.5 kW motor or the magnetizing inrush of a 400 VA control transformer. If the load is resistive (heaters, lighting) or has a low inrush, a C-curve would trip faster and give better selectivity; the D-curve is the right call only when you need the headroom.","metaTitle":"Siemens 5SY6325-8CC SENTRON MCB, 3P D 25A 6kA","metaDescription":"Siemens 5SY6325-8CC SENTRON miniature circuit breaker, 3-pole, D-curve, 25 A, 6 kA per EN 60898. Current lifecycle. Quoted to order. Request RFQ.","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":"5SY6325-8CC","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 6kA, 3-pole, D, 25A","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","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":"3","Position Of Power Supply Cord":"Any","Tripping Characteristic Class":"D","according to EN 60898 rated value":"6 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","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","power loss [W] for rated value of the current at AC in hot operating state per pole":"2.1 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/c2db64febd451baddc35831be1e8c8ac.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=538000&mlfb=5SY6325-8CC"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY6325-8CC","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/5SY6325-8CC 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}}