{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL4432-8","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL4432-8","canonicalUrl":"https://aoctrl.com/siemens/5SL4432-8","factsUrl":"https://aoctrl.com/api/mcp/products/5SL4432-8","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL4432-8 miniature circuit breaker, 4-pole, D-curve, 32 A, 10 kA breaking capacity per EN 60898 / IEC 60947-2 at 400 V AC, 4 MW width.","salesMarkdown":"## What the D-curve and 10 kA mean for your panel The Siemens 5SL4432-8 is a 4-pole SENTRON miniature circuit breaker rated 32 A with a D tripping characteristic, meaning it tolerates high inrush currents — typically 10–20× rated current before the magnetic trip fires — making it the right choice for motor starters, transformers, and welding equipment where the start-up surge would nuisance-trip a B or C curve breaker. Its 10 kA breaking capacity at 400 V AC (certified to both EN 60898 and IEC 60947-2) means it can safely interrupt a fault current up to 10,000 A without welding contacts or cascading failure upstream — a solid match for residential and light commercial infrastructure panels where the prospective short-circuit current stays under that threshold. Mounts in any position; the sealable design lets a panel builder lock the toggle position to prevent unauthorized operation.","metaTitle":"Siemens 5SL4432-8 SENTRON MCB, 4P D 32A, 10kA 400V","metaDescription":"Siemens 5SL4432-8 SENTRON miniature circuit breaker, 4-pole, D-curve, 32 A, 10 kA breaking capacity at 400 V AC. Active production, sourced 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":"5SL4432-8","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 10kA, 4-pole, D, 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","Suitability For Operation":"Residential buildings/infrastructure","at DC rated value maximum":"72 V","Number Of Modular Width Units":"4","Tripping Characteristic Class":"D","supply voltage at AC rated value":"400 V","according to EN 60898 rated value":"10 kA","according to IEC 60947-2 rated value":"10 kA","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","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":"2.7 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$45.72","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/2716fb544c0064b864e9024b22f934fe.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=86128&mlfb=5SL4432-8"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL4432-8","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/5SL4432-8 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}}