{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY7332-8","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY7332-8","canonicalUrl":"https://aoctrl.com/siemens/5SY7332-8","factsUrl":"https://aoctrl.com/api/mcp/products/5SY7332-8","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY7332-8 miniature circuit breaker, D tripping characteristic, 3-pole, 15 kA (EN 60898-1) / 25 kA (IEC 60947-2), 400 V AC, 3 modular width units.","salesMarkdown":"Rated breaking capacity sits at 15 kA per EN 60898-1 and 25 kA per IEC 60947-2; the higher figure governs when the breaker is applied in industrial distribution per 60947-2, giving you headroom for high-fault panels. The 400 V AC rated voltage (440 V maximum across phases) covers standard three-phase line-to-line supplies in most 50/60 Hz installations. ## Thermal derating and environmental limits The manufacturer specifies a relative humidity derating table: 95% RH up to 55 °C, then 55% RH up to 70 °C, then 35% RH up to 75 °C. Vibration resistance per IEC 60068-2-6: ±1 mm at 5–25 Hz and 50 m/s² at 25–150 Hz — adequate for most industrial panels unless mounted directly on a reciprocating compressor frame. ## Standards and compliance scope The 5SY7332-8 is certified under IEC / EN 60898-1 (domestic / commercial MCB standard) and IEC / EN 60947-2 plus UL 1077 (industrial circuit-breaker standard). The dual rating means it qualifies for both household-style distribution boards and industrial control panels — the specifier picks the applicable standard for the installation. DC-side rating: 15 kA at 60 V (max 72 V) per IEC 60947-2, useful for DC bus or battery circuits within those voltage limits.","metaTitle":"Siemens 5SY7332-8 SENTRON MCB, D Curve, 3-Pole, 15/25 kA","metaDescription":"Siemens 5SY7332-8 SENTRON miniature circuit breaker. D tripping characteristic, 3-pole, 15 kA (EN 60898) / 25 kA (IEC 60947-2) breaking capacity. Current production. Quoted to orde","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Depth":"76 mm","Width":"54 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","Number Of Poles":"3","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":"No","Number Of Modular Width Units":"3","Position Of Power Supply Cord":"Any","Tripping Characteristic Class":"D","according to EN 60898 rated value":"15 kA","according to IEC 60947-2 rated value":"25 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/dfdf7ef25d2fa17565591297906ba257.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=498088&mlfb=5SY7332-8","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY7332-8/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings of the 5SY7332-8?","answer":"D tripping characteristic, 3-pole, 15 kA breaking capacity per EN 60898-1 and 25 kA per IEC 60947-2, rated 400 V AC / 60 V DC. Occupies 3 modular width units (54 mm) on DIN rail."},{"question":"Where can I buy the 5SY7332-8?","answer":"This part is sourced and quoted to order through independent distribution. Submit an RFQ for current availability and pricing; stock levels and lead time are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY7332-8","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/5SY7332-8 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}}