{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY5425-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY5425-7","canonicalUrl":"https://aoctrl.com/siemens/5SY5425-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SY5425-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY5425-7, 4-pole miniature circuit breaker, C tripping characteristic, 10 kA breaking capacity per IEC/EN 60898-2, 400 V AC, 4 modular width units.","salesMarkdown":"The Siemens 5SY5425-7 is a 4-pole miniature circuit breaker from the SENTRON family, designed for universal current operation (AC/DC) and rated at 400 V AC (multi- and single-phase) with a C tripping characteristic. It carries a 10 kA breaking capacity per IEC/EN 60898-2 and a 15 kA rating per IEC 60947-2 at DC, making it suitable for branch-circuit protection in distribution boards and control panels where moderate inrush currents — typical of motor starters, contactor coils, and lighting banks — are expected. Rated for 400 V AC (multi-phase) and 440 V AC (single-phase), with a DC operating voltage up to 1,000 V. The 10 kA breaking capacity at AC per EN 60898-2 means it can safely interrupt a fault current up to that level without welding contacts or cascading upstream; the 15 kA DC rating per IEC 60947-2 gives additional headroom for DC bus protection in industrial supplies. ## Mounting and integration into a panel Depth is 76 mm (installation depth 70 mm), so it fits standard 100 mm deep distribution boards with room for wiring. Rated for ambient temperatures from -40 °C to 75 °C, with a derating curve above 55 °C (95% humidity up to 55 °C, 55% up to 70 °C, 35% up to 75 °C). Halogen-free and silicon-free construction, which matters for installations in clean rooms, semiconductor fabs, or areas with sensitive electronics where outgassing can cause contact corrosion. Vibration resistance per IEC 60068-2-6: ±1 mm at 5 to 25 Hz, 50 m/s² at 25 to 150 Hz — sufficient for mounting on machinery or in mobile equipment.","metaTitle":"Siemens 5SY5425-7 SENTRON MCB, 4P C-curve, 10 kA, 400 V AC","metaDescription":"Siemens 5SY5425-7 SENTRON miniature circuit breaker, 4-pole, C characteristic, 10 kA breaking capacity per IEC/EN 60898-2, 400 V AC. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["4-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"72 mm","title":"5SY5425-7","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Standard":"IEC / EN 60898-2, UL1077","description":"Circuit breaker Universal current 880 V DC 400 V AC 10kA, 4-pole, C, 25A max. 1000 V DC","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"4P","Number Of Poles":"4","lifecycle_stage":"current","Fastening Method":"Quick assembly system","Mounting Position":"any","at AC rated value":"400 V","at DC rated value":"880 V","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":"II","Combined Terminal Top":"Yes","Energy Limitation Class":"3","Combined Terminal Bottom":"Yes","Suitability For Operation":"universal current","Neutral Conductor Switching":"No","Number Of Modular Width Units":"4","Position Of Power Supply Cord":"AC as required, observe DC polarity","Tripping Characteristic Class":"C","at DC according to EN 60898-2":"10 kA","according to EN 60898 rated value":"10 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/DC","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":"1 000 V","with multi-phase operation at AC rated value":"440 V","with single-phase operation at AC rated value":"440 V","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":"2.2 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/2ab15577a22b91f2ede803601758b307.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=369266&mlfb=5SY5425-7"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SY5425-7?","answer":"10 kA per IEC/EN 60898-2 at AC, and 15 kA per IEC 60947-2 at DC — the higher DC rating gives extra margin for DC bus protection."},{"question":"Will 5SY5425-7 drop into a panel specified for 5SY5416-7?","answer":"Both are 4-pole SENTRON MCBs with the same 4-module width (72 mm), same DIN-rail mounting, and same terminal layout. The 5SY5425-7 carries a higher current rating than the 5SY5416-7, so it fits the same physical footprint but serves a heavier load — verify the cable and upstream protection are sized for the higher rating before swapping."},{"question":"What compliance documentation does Siemens provide for 5SY5425-7?","answer":"The MCB is certified to IEC/EN 60898-2 and UL1077. It is halogen-free and silicon-free, which supports RoHS and REACH compliance for restricted materials. Standard documentation includes the declaration of conformity and the datasheet with the full temperature derating curve."},{"question":"Where can I buy 5SY5425-7?","answer":"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 commitment."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY5425-7","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/5SY5425-7 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}}