{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SN6225-8CP","brand":"Siemens","brandSlug":"siemens","productSlug":"5SN6225-8CP","canonicalUrl":"https://aoctrl.com/siemens/5SN6225-8CP","factsUrl":"https://aoctrl.com/api/mcp/products/5SN6225-8CP","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SN series, 5SN6225-8CP, 2-pole miniature circuit breaker, 400 V AC, 50 Hz, 6 kA (EN 60898) / 15 kA (IEC 60947-2), 2 MW units, 36 mm wide.","salesMarkdown":"The Siemens 5SN6225-8CP is a 2-pole miniature circuit breaker from the SENTRON 5SN series, rated for 400 V AC at 50 Hz. It provides overcurrent and short-circuit protection for branch circuits in distribution boards, control panels, and machinery. ## Physical Fit and Installation The top and bottom terminals accept solid conductors up to 35 mm², which covers the range from 1.5 mm² lighting circuits up to 10 mm² feeder taps in a sub-distribution board. The 90 mm height leaves clearance under a standard 120 mm distribution board cover. ## Electrical Ratings and Application Rated for multi-phase and single-phase operation at 440 V AC maximum, with a DC voltage rating of 72 V maximum — so it can also serve as a DC branch protector in control circuits supplied from a 48 V or 60 V battery bank, provided the fault current stays within its DC interrupting capability (not separately stated, but the DC rating is the voltage limit). Power loss per pole at rated current in hot operating state is 2.1 W; for a 2-pole breaker that is 4.2 W total heat to dissipate inside the enclosure, which matters when grouping multiple breakers in a sealed panel. ## Environmental Range No derating curve is provided in the spec record, but the -40 °C floor is unusual for a standard MCB — it signals suitability for outdoor telecom shelters or unheated electrical rooms in northern climates.","metaTitle":"Siemens 5SN6225-8CP SENTRON MCB, 2-Pole, 6 kA (EN 60898)","metaDescription":"Siemens 5SN6225-8CP SENTRON 2-pole MCB. Rated 400 V AC, 50 Hz. Breaking capacity 6 kA per EN 60898, 15 kA per IEC 60947-2. 2 MW units, 36 mm wide. Active production. Available to o","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["2-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"36 mm","title":"5SN6225-8CP","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","description":"MCB 5SN","Number Of Poles":"2","lifecycle_stage":"current","Installation Depth":"70 mm","at DC rated value maximum":"72 V","Number Of Modular Width Units":"2","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":"2.1 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/50e0d4a1652b28029e3c65b630a56181.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1647260&mlfb=5SN6225-8CP"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SN6225-8CP?","answer":"The 5SN6225-8CP has a breaking capacity of 6 kA according to EN 60898 and 15 kA according to IEC 60947-2. The IEC 60947-2 figure is the one that applies in industrial control panels where the prospective short-circuit current may exceed the residential standard."},{"question":"What are the physical dimensions of 5SN6225-8CP?","answer":"The breaker measures 36 mm wide (2 modular width units), 76 mm deep, and 90 mm high, with an installation depth of 70 mm."},{"question":"Where can I buy 5SN6225-8CP?","answer":"The 5SN6225-8CP is sourced to order through independent distribution. Availability and current pricing are confirmed at quote time against an RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SN6225-8CP","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/5SN6225-8CP 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}}