{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4625-8","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4625-8","canonicalUrl":"https://aoctrl.com/siemens/5SY4625-8","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4625-8","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY4625-8 miniature circuit breaker, D characteristic, 4-pole (3P+N), 10 kA breaking capacity per EN 60898-1, 20 kA per IEC 60947-2, 4 MW units wide, 76 mm depth.","salesMarkdown":"## D-curve MCB for motor and transformer branch protection Its 4-pole 3P+N construction switches the neutral conductor and occupies 4 modular width units on the DIN rail — a clean 72 mm wide footprint that fits standard distribution boards. Rated for AC operation at 400 V and 50/60 Hz, with a maximum operating voltage of 440 V in multi-phase or single-phase operation. On the DC side it carries a rated voltage of 60 V, max 72 V. The D curve means magnetic trip thresholds are roughly 10–20× rated current — exactly what you need to avoid tripping on transformer inrush or motor start. ## Breaking capacity — dual-standard certification This breaker carries dual ratings: 10 kA per EN 60898-1 and 20 kA per IEC 60947-2, plus 15 kA at DC per IEC 60947-2 and 5 kA per UL 1077 / CSA C22.2 No.235. The 20 kA IEC rating means it can be applied on industrial panels with higher fault current potential — typical for main distribution boards in machine-tool or process lines. The UL 1077 listing covers North American supplementary protection applications. Certified to IEC / EN 60898-1, IEC / EN 60947-2, and UL 1077. That triple coverage lets the same part number serve panels destined for Europe (60898-1 for domestic, 60947-2 for industrial) and North America (UL 1077 supplementary) without a variant swap. ## Environmental and mounting details Mounts in any position via the quick-assembly system. The combined terminal at top and bottom accepts both busbar and cable connections without re-termination.","metaTitle":"Siemens 5SY4625-8 SENTRON MCB, D Curve, 4-Pole, 10 kA IEC","metaDescription":"Siemens 5SY4625-8 SENTRON miniature circuit breaker, D tripping characteristic, 4-pole 3P+N, 10 kA (EN 60898-1) / 20 kA (IEC 60947-2). Active production, sourced to order. RFQ for","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Depth":"76 mm","Width":"72 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Standard":"IEC / EN 60898-1, IEC / EN 60947-2 / UL1077","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"3P+N","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":"60 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":"Yes","Number Of Modular Width Units":"4","Position Of Power Supply Cord":"Any","Tripping Characteristic Class":"D","according to EN 60898 rated value":"10 kA","according to IEC 60947-2 rated value":"20 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","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":"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","supply voltage with single-phase operation at AC rated value":"230 V","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,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/4aa55c9efc2b6db4f8ba5d9746f57bea.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=392812&mlfb=5SY4625-8","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY4625-8/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings of the 5SY4625-8?","answer":"D tripping characteristic, 4-pole 3P+N, 10 kA per EN 60898-1, 20 kA per IEC 60947-2, 15 kA DC, 400 V AC / 60 V DC rated voltage, 4 MW units wide, ambient range -40 °C to +75 °C."},{"question":"Will the 5SY4625-8 drop into a panel specified for a 4-pole D-curve MCB from the same SENTRON family?","answer":"Yes, it shares the same 4 MW (72 mm) width, 76 mm depth, and DIN-rail quick-assembly mounting as other SENTRON 4-pole MCBs. The neutral conductor switching (3P+N) is consistent across the series. No rewiring is needed if the panel was designed for a 4-module SENTRON breaker."},{"question":"How do I get pricing and availability for the 5SY4625-8?","answer":"The 5SY4625-8 is sourced to order through independent distribution. Submit an RFQ to receive current pricing and confirmed availability; stock levels and lead time are quoted at that time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4625-8","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/5SY4625-8 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}