{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SN4432-7CN","brand":"Siemens","brandSlug":"siemens","productSlug":"5SN4432-7CN","canonicalUrl":"https://aoctrl.com/siemens/5SN4432-7CN","factsUrl":"https://aoctrl.com/api/mcp/products/5SN4432-7CN","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SN4432-7CN, 4-pole miniature circuit breaker, C-curve, 32 A, 10 kA per EN 60898, 400/440 V AC.","salesMarkdown":"## 4-pole C-curve MCB for distribution boards Rated for 400 V AC multi-phase operation, with a maximum of 440 V AC, this 4-pole unit handles three-phase loads plus a switched neutral — though the neutral conductor is not switched internally on this variant (the neutral pole is protected but not isolated). ## DIN-rail fit and panel integration Mounting position is unrestricted, so it can go sideways or upside-down in a tight enclosure without derating. Terminals accept solid conductors up to 25 mm², which is generous for a 32 A breaker — useful when back-feeding or looping through multiple breakers on a busbar. The IP20 rating applies only with conductors connected; the front is touch-protected per the product feature. ## C-curve tripping and thermal behaviour C-curve means the magnetic trip fires at 5 to 10 times rated current (160–320 A for this 32 A unit). That's the standard choice for general-purpose loads with moderate inrush — lighting banks, small motor circuits, control transformers. The thermal element handles sustained overloads; power loss per pole is 2.6 W in hot operating state at rated current, so four poles dissipate about 10.4 W total inside the enclosure. Ambient temperature range is -40 °C to +75 °C, with derating above 55 °C (the spec notes 55 °C at 95% humidity as the upper limit for full rating).","metaTitle":"Siemens 5SN4432-7CN SENTRON MCB, 4P C 32 A, 10 kA","metaDescription":"Siemens 5SN4432-7CN SENTRON miniature circuit breaker, 4-pole, C-curve, 32 A, 10 kA per EN 60898, 400/440 V AC. Current production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["4-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"72 mm","title":"5SN4432-7CN","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Circuit breaker 400 V, 10kA, 4-pole, C, 32 A","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"4P","Number Of Poles":"4","lifecycle_stage":"current","Mounting Position":"any","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":"III","Energy Limitation Class":"3","at DC rated value maximum":"72 V","Number Of Modular Width Units":"4","Tripping Characteristic Class":"C","Product Feature Touch Protection":"Yes","supply voltage at AC rated value":"400 V","according to EN 60898 rated value":"10 kA","Supply Voltage Frequency Rated Value":"50 Hz","Influence Of The Surrounding Temperature":"+55 °C, max. 95% humidity","Type Of Voltage Of The Operating Voltage":"AC","with multi-phase operation at AC maximum":"440 V","Value Range Of The Supply Voltage Frequency":"50/60 Hz","with multi-phase operation at AC rated value":"440 V","Product Component Neutral Conductor Switching":"No","vibration resistance according to IEC 60068-2-6":"50 m/s² at 25 to 150 Hz","Connectable Conductor Cross-Section Solid Maximum":"25 mm²","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/795056237a78461129c4249fae125848.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=423265&mlfb=5SN4432-7CN"},"ai":{"faq":[{"question":"Where can I buy 5SN4432-7CN and how do I get a price?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current availability and pricing — confirmed at quote time."},{"question":"Will 5SN4432-7CN drop into a panel specified around 5SL4363-7 without rewiring?","answer":"No — the 5SN4432-7CN is 4-pole (72 mm wide) versus the 5SL4363-7's 3-pole (54 mm wide). The extra pole and wider footprint mean the DIN-rail position and wiring scheme are different. You'd need to re-terminate the neutral and possibly shift busbar positions."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SN4432-7CN","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/5SN4432-7CN 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}}