{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY7432-8CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY7432-8CC","canonicalUrl":"https://aoctrl.com/siemens/5SY7432-8CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SY7432-8CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY7432-8CC, 4-pole miniature circuit breaker, D characteristic, 32 A rated current, 20 kA breaking capacity at 400 V AC.","salesMarkdown":"The D curve allows a short, high-magnitude surge before the magnetic trip fires, so it's the right pick for inductive loads that draw 10–20× rated current on startup. Under UL 1077 and CSA C22.2 No. 235, the interrupting rating is 5 kA, which covers most North American supplementary-protection applications. Mount in any position; the quick-assembly system clips on without tools. Vibration-rated per IEC 60068-2-6: ±1 mm at 5–25 Hz, 50 m/s² at 25–150 Hz — fine for machinery-mount applications. ## Environmental range and materials Rated for -40 °C to 75 °C ambient, so it's usable in unconditioned enclosures or outdoor-adjacent panels. Sealable terminals allow tamper-proofing after commissioning.","metaTitle":"Siemens 5SY7432-8CC SENTRON MCB, 32 A, 4P, D Curve, 20 kA","metaDescription":"Siemens 5SY7432-8CC SENTRON miniature circuit breaker, 32 A, 4-pole, D tripping characteristic, 20 kA IEC 60947-2, 400 V AC. Active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Depth":"76 mm","Width":"72 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Halogen-Free":"Yes","Silicon-Free":"Yes","Number Of Poles":"4","Type Of Voltage":"AC","lifecycle_stage":"current","Fastening Method":"Quick assembly system","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"3","Product Designation":"Miniature circuit breaker","acc. to IEC 81346-2":"F","at AC / rated value":"400 V","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Combined Terminal Top":"Yes","Number Of Poles / Note":"4P","acc. to DIN EN 61346-2":"F","Combined Terminal Bottom":"Yes","Suitability For Operation":"Mechanical engineering / industry","Number Of Modular Width Units":"4","Tripping Characteristic Class":"D","Position / Of Power Supply Cord":"Any","acc. to IEC 60947-2 / rated value":"20 kA","Product Feature / Touch Protection":"Yes","Supply Voltage Frequency / Rated Value":"50/60 Hz","Influence Of The Surrounding Temperature":"max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C","operational current / at AC / rated value":"32 A","at AC / acc. to UL 1077 and CSA C22.2 No.235":"5 kA","vibration resistance / acc. to IEC 60068-2-6":"±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz","Product Function / Neutral Conductor Switching":"No","with multi-phase operation / at AC / rated value":"440 V","operating voltage / at DC / rated value / maximum":"72 V","with single-phase operation / at AC / rated value":"440 V","Mechanical Service Life (Switching Cycles) / Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/7fc74dd30f006c88e3ec5141e09025bd.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=314263&mlfb=5SY7432-8CC","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY7432-8CC/alternatives.json"},"ai":{"faq":[{"question":"What is the 5SY7432-8CC rated current and breaking capacity?","answer":"Rated current is 32 A, with a breaking capacity of 20 kA per IEC 60947-2 at 400 V AC, and 5 kA per UL 1077 / CSA C22.2 No. 235."},{"question":"What tripping characteristic does the 5SY7432-8CC have?","answer":"It has a D tripping characteristic, designed for loads with high inrush currents such as motors and transformers."},{"question":"Where can I buy the 5SY7432-8CC and get a price?","answer":"This part is sourced and quoted to order through independent distribution. Submit an RFQ for current availability and pricing."},{"question":"Will the 5SY7432-8CC drop into a panel specified for the 5SY7140-8CC?","answer":"Both are 4-pole SENTRON MCBs on the same DIN-rail footprint (4 MW, 72 mm wide). The 5SY7140-8CC is a 40 A B-curve; the 5SY7432-8CC is a 32 A D-curve. They share the same physical dimensions and mounting, so no rewiring is needed for the panel — but the different rating and curve mean the circuit protection changes. Verify the load's inrush and continuous current before swapping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY7432-8CC","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/5SY7432-8CC 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}}