{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL4332-8","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL4332-8","canonicalUrl":"https://aoctrl.com/siemens/5SL4332-8","factsUrl":"https://aoctrl.com/api/mcp/products/5SL4332-8","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL4332-8, miniature circuit breaker, 3-pole, D-curve, 32 A, 400 V AC, 10 kA breaking capacity, 3 MW units.","salesMarkdown":"The Siemens SENTRON 5SL4332-8 is a 3-pole miniature circuit breaker (MCB) with a D tripping characteristic, rated 32 A at 400 V AC. It delivers a 10 kA breaking capacity under both EN 60898 and IEC 60947-2, which means it can safely interrupt fault currents up to that level on a 400 V distribution board — no cascading upstream breakers needed for most residential and light commercial panels. ## D-curve and deployment context The breaker tolerates a short-duration surge without nuisance tripping, then clears a sustained overload. Rated for 50/60 Hz supply and overvoltage category III, it mounts in any position on a DIN rail, occupying 3 modular width units. The 76 mm depth and 54 mm width match the standard SENTRON 5SL family footprint, so it slots into existing distribution boards without re-spacing. The 10 kA SCCR at 400 V AC is the same under both EN 60898 (household) and IEC 60947-2 (industrial) standards — a single rating that satisfies both compliance paths. The D curve vs. the more common C curve is the key decision: if your load is a motor or a transformer bank, D avoids nuisance trips. If the load is resistive or general-purpose, a C-curve sibling like the 5SL4363-7 would trip faster on overload. The 5SL4332-8 runs at 2.7 W power loss per pole in hot operating state — negligible for panel thermal budgeting, but worth noting if you're packing 40+ breakers in a sealed enclosure.","metaTitle":"Siemens 5SL4332-8 SENTRON MCB, 3P D 32A 10kA","metaDescription":"Siemens SENTRON 5SL4332-8 miniature circuit breaker, 3-pole, D-curve, 32 A, 400 V AC, 10 kA breaking capacity per EN 60898/IEC 60947-2. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["3-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"54 mm","title":"5SL4332-8","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 10kA, 3-pole, D, 32 A","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"3P","Number Of Poles":"3","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":"3","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":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/a12587f1d580730a82fb033291f120a1.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=254021&mlfb=5SL4332-8"},"ai":{"faq":[{"question":"What is the closest functional second-source to 5SL4332-8?","answer":"The closest peer is the 5SL4363-7, which shares the same 3-pole, 400 V AC, 10 kA rating and identical dimensions (76 mm depth, 54 mm width, 90 mm height). The difference is the tripping curve: 5SL4363-7 is a C-curve, so it trips faster on moderate overloads. For motor or transformer loads where inrush is expected, the D-curve 5SL4332-8 is the correct choice; for general-purpose or resistive loads, the C-curve sibling would be a drop-in replacement without rewiring."},{"question":"Will 5SL4332-8 drop into a panel specified around 5SL4363-7?","answer":"Yes — the two breakers share the same physical footprint (76 mm depth, 54 mm width, 90 mm height), same 3 MW units width, same DIN-rail mounting, and same terminal layout. No rewiring or busbar adjustment is needed. The only functional difference is the tripping characteristic: D vs. C."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL4332-8","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/5SL4332-8 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}}