{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY5432-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY5432-7","canonicalUrl":"https://aoctrl.com/siemens/5SY5432-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SY5432-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY5432-7, miniature circuit breaker, 4-pole, C characteristic, 32 A rated current, 10 kA breaking capacity per IEC/EN 60898-2 and UL1077, 4 MW width.","salesMarkdown":"The Siemens SENTRON 5SY5432-7 is a 4-pole miniature circuit breaker with a C tripping characteristic, rated 32 A and breaking 10 kA per IEC/EN 60898-2 and UL1077. ## Ratings and real-world fit The 32 A rating holds at 35 °C ambient; above that, the breaker derates — 30.72 A at 40 °C, 30.08 A at 45 °C, 29.41 A at 50 °C, 28.74 A at 55 °C, and 28.03 A at 60 °C. The 10 kA breaking capacity applies to AC per EN 60898; DC breaking is also 10 kA per EN 60898-2, with a rated DC voltage of 880 V. That DC rating is unusually high for a 4-MW MCB — it handles series-string solar or battery-bank circuits where other breakers would arc. Supply can be connected AC in any orientation, but DC polarity must be observed. The 5SY5432-7 is rated for universal current (AC/DC) and carries an overvoltage category II rating with pollution degree 2 — standard for fixed-installation distribution panels. It is sealable, halogen-free, and silicon-free, which simplifies compliance documentation for food, pharma, or clean-room lines. The 4-MW width (72 mm) and 76 mm depth fit standard distribution boards and sub-distribution panels. Ambient humidity limits: 95% up to 55 °C, 55% up to 70 °C, 35% up to 75 °C.","metaTitle":"Siemens 5SY5432-7 SENTRON MCB, 32A C-Curve 4P 10kA","metaDescription":"Siemens 5SY5432-7 SENTRON miniature circuit breaker, 32A rated, C characteristic, 4-pole, 10kA breaking capacity per IEC/EN 60898-2 and UL1077. Active production. Quoted to order.","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":"5SY5432-7","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, 32A 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":"32 A","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","at 35 °C rated value":"32 A","at 40 °C rated value":"30.72 A","at 45 °C rated value":"30.08 A","at 50 °C rated value":"29.41 A","at 55 °C rated value":"28.74 A","at 60 °C rated value":"28.03 A","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":"2.6 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/6bc94f905c71a1e3c6b0a403d7152a11.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=333655&mlfb=5SY5432-7"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 5SY5432-7?","answer":"Pricing and availability are confirmed at quote time. Submit an RFQ through this listing — the part is sourced to order via independent distribution, and a current quote will reflect real-time stock and pricing."},{"question":"What is 5SY5432-7's breaking capacity?","answer":"The 5SY5432-7 breaks 10 kA per IEC/EN 60898-2 for AC circuits and 10 kA per the same standard for DC circuits, with a rated DC voltage of 880 V."},{"question":"What compliance documentation does Siemens provide for 5SY5432-7?","answer":"The breaker is certified to IEC/EN 60898-2 and UL1077. It is halogen-free and silicon-free, which supports RoHS and REACH declarations. The sealable design allows lockout/tagout compliance."},{"question":"Will 5SY5432-7 drop into a panel specified around 5SY4140-7 without rewiring?","answer":"Both are 4-pole SENTRON MCBs with the same 4-MW width and DIN-rail mounting, so the physical swap is straightforward. However, the 5SY5432-7 is a 32 A C-curve, while the 5SY4140-7 is a different rating — verify the load current and trip characteristic before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY5432-7","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/5SY5432-7 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}}