{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL3225-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL3225-7","canonicalUrl":"https://aoctrl.com/siemens/5SL3225-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SL3225-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL3225-7 miniature circuit breaker, 2-pole, C-curve, 25 A, 400 V AC, 4.5 kA (EN 60898), 2 MW wide.","salesMarkdown":"## What it is and what it does The Siemens 5SL3225-7 is a SENTRON miniature circuit breaker (MCB) — a 2-pole, C-curve device rated 25 A at 400 V AC, 50/60 Hz. It protects branch circuits against overload and short-circuit in residential and infrastructure panels. The C-curve characteristic (tripping between 5× and 10× In) suits it for general-purpose loads with moderate inrush — lighting, socket outlets, small motor circuits — where the magnetic trip needs to ride through a brief start-up surge without nuisance tripping. ## Breaking capacity and selectivity Rated breaking capacity is 4.5 kA per EN 60898 and 5 kA per IEC 60947-2. The dual rating means the 5SL3225-7 is certified for both the residential MCB standard (EN 60898) and the industrial standard (IEC 60947-2). The 5 kA figure under IEC 60947-2 gives a bit more fault-current headroom for industrial panel applications where the prospective short-circuit current is higher than a typical domestic installation. Overvoltage category III and pollution degree 2 confirm it is rated for fixed-installation use downstream of the utility meter — not for plug-in portable equipment. ## Panel fit and integration Snap-on DIN-rail mounting (implied by the SENTRON form factor) and any mounting position simplify panel layout. Width is 36 mm — 2 modular width units. Depth is 76 mm; installation depth is 70 mm. The IP20 rating applies with connected conductors; the breaker itself is not sealed against dust ingress, so it belongs inside an enclosure. Sealable, halogen-free, and silicon-free — relevant for clean-room or sensitive-environment panels where outgassing or tamper evidence matters. Supplementary devices (auxiliary switches, shunt trips, alarm contacts) can be installed on the side.","metaTitle":"Siemens 5SL3225-7 SENTRON MCB, 2P C 25A 400V 4.5kA","metaDescription":"Siemens 5SL3225-7 SENTRON miniature circuit breaker, 2-pole, C-curve, 25A, 400V AC, 4.5 kA (EN 60898). Current production. Quoted to order.","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":"5SL3225-7","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 4.5 kA, 2-pole, C, 25A","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"2P","Number Of Poles":"2","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":"2","Tripping Characteristic Class":"C","supply voltage at AC rated value":"400 V","according to EN 60898 rated value":"4.5 kA","according to IEC 60947-2 rated value":"5 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":"2.6 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/abe3bd82392c6e5e556af1de51bd959c.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=35727&mlfb=5SL3225-7"},"ai":{"faq":[{"question":"Where can I buy 5SL3225-7 and how do I get a price?","answer":"The 5SL3225-7 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is 5SL3225-7's listed depth?","answer":"Depth is 76 mm; installation depth is 70 mm."},{"question":"What is 5SL3225-7's listed width?","answer":"Width is 36 mm, which is 2 modular width units."},{"question":"Will 5SL3225-7 drop into a panel specified around 5SL4363-7 without rewiring?","answer":"No — the 5SL4363-7 is a 3-pole, 63 A device in a 54 mm (3 MW) footprint. The 5SL3225-7 is 2-pole, 25 A, and 36 mm (2 MW) wide. The pole count, current rating, and DIN-rail width are all different; the panel would need rewiring and a different busbar arrangement."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL3225-7","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/5SL3225-7 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}}