{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL3125-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL3125-7","canonicalUrl":"https://aoctrl.com/siemens/5SL3125-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SL3125-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL3125-7, 1-pole miniature circuit breaker, 25 A rated current, C tripping characteristic, 4.5 kA breaking capacity per EN 60898, 400 V AC.","salesMarkdown":"## Siemens 5SL3125-7 SENTRON MCB — 25 A, 1-Pole, C-Curve It breaks 4.5 kA per EN 60898 and 5 kA per IEC 60947-2, covering residential and light commercial infrastructure branch circuits. ## Thermal Derating & Ambient Rating At 40 °C it derates to 23.48 A, at 45 °C to 22.5 A, and at 55 °C to 21 A. ## Physical Fit & Panel Integration Occupies 1 modular unit (18 mm wide) on a DIN rail. Mounting position is unrestricted — horizontal, vertical, or inverted — which helps when laying out a dense sub-distribution board. Halogen-free and silicon-free construction. Sealable terminals for tamper-proofing after commissioning. Mechanical service life rated at 10 000 switching cycles typical. Rated for both AC (400/440 V multi-phase, 250 V single-phase) and DC operation up to 72 V. DC rating is useful for control-circuit protection in the same panel.","metaTitle":"Siemens 5SL3125-7 SENTRON MCB, 25 A, 1P, C-Curve, 4.5 kA","metaDescription":"Siemens 5SL3125-7 SENTRON miniature circuit breaker, 25 A rated, 1-pole, C characteristic, 4.5 kA per EN 60898. Current production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"18 mm","title":"5SL3125-7","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 230/400 V 4.5 kA, 1-pole, C, 25A","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"1P","Number Of Poles":"1","lifecycle_stage":"current","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"2","Product Designation":"Miniature circuit breaker","at AC / rated value":"25 A","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Energy Limitation Class":"3","according to EN 61346-2":"F","at 30 °C / rated value":"25 A","at 40 °C / rated value":"23.48 A","at 45 °C / rated value":"22.5 A","at 55 °C / rated value":"21 A","according to IEC 81346-2":"F","Suitability For Operation":"Residential buildings/infrastructure","Number Of Modular Width Units":"1","Tripping Characteristic Class":"C","at DC / rated value / maximum":"72 V","Product Feature / Touch Protection":"Yes","according to EN 60898 / rated value":"4.5 kA","supply voltage / at AC / rated value":"400 V","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","Product Component / Neutral Conductor Switching":"No","with multi-phase operation / at AC / rated value":"440 V","with single-phase operation / at AC / rated value":"250 V","Mechanical Service Life (Switching Cycles) / Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/5db07bf926e0acbd861ca74ef6c1f9bc.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=451363&mlfb=5SL3125-7"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 5SL3125-7?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the depth and width of the 5SL3125-7?","answer":"Depth is 76 mm, width is 18 mm (1 modular unit)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL3125-7","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/5SL3125-7 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}}