{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL3432-7MB","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL3432-7MB","canonicalUrl":"https://aoctrl.com/siemens/5SL3432-7MB","factsUrl":"https://aoctrl.com/api/mcp/products/5SL3432-7MB","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL3432-7MB, miniature circuit breaker, 4-pole, C-curve, 32 A rated current, 4.5 kA breaking capacity.","salesMarkdown":"At 32 A, this breaker handles a 7.3 kW resistive load at 230 V per pole, or a 22 kW three-phase load at 400 V. Temperature derating is built in: at 40 °C ambient the continuous rating drops to 30.4 A, and at 45 °C it's 29.76 A. In a warm enclosure or summer attic install, that's the number to use for load calculations, not the 30 °C figure. This is a DIN-rail mounted MCB for residential buildings and infrastructure — think consumer units, sub-distribution boards, and commercial lighting panels. The 76 mm depth (70 mm installation depth) fits standard shallow enclosures. Touch protection is built in — no live parts exposed when installed in a proper distribution board.","metaTitle":"Siemens 5SL3432-7MB SENTRON MCB, 4P C-Curve 32A 4.5kA","metaDescription":"Siemens 5SL3432-7MB SENTRON miniature circuit breaker, 4-pole, C-curve, 32 A rated current, 4.5 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":["4-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"72 mm","title":"5SL3432-7MB","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breakers Icn: 4.5 kA, 4P, C-Char, In: 32 A","Halogen-Free":"Yes","Silicon-Free":"Yes","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","acc. to IEC 81346-2":"F","at AC / rated value":"32 A","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","acc. to DIN EN 61346-2":"F","Energy Limitation Class":"3","at 30 °C / rated value":"32 A","at 40 °C / rated value":"30.4 A","at 45 °C / rated value":"29.76 A","Suitability For Operation":"Residential buildings/infrastructure","Number Of Modular Width Units":"4","Tripping Characteristic Class":"C","at DC / rated value / maximum":"72 V","acc. to EN 60898 / rated value":"4.5 kA","acc. to IEC 60947-2 / rated value":"4.5 kA","Product Feature / Touch Protection":"Yes","supply voltage / at AC / rated value":"400 V","with multi-phase operation / at AC / maximum":"440 V","Product Function / Neutral Conductor Switching":"No","with multi-phase operation / at AC / rated value":"440 V","Mechanical Service Life (Switching Cycles) / Typical":"20 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/b7b83d11b4215d508c9a970150b7f9af.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=882897&mlfb=5SL3432-7MB"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SL3432-7MB?","answer":"The breaking capacity is 4.5 kA per both EN 60898 and IEC 60947-2. That's the standard rating for residential and light commercial distribution boards."},{"question":"What is the width of 5SL3432-7MB?","answer":"The width is 72 mm, which corresponds to 4 modular width units on a standard DIN rail."},{"question":"Will 5SL3432-7MB drop into a panel specified around 5SL3232-6MB?","answer":"No — the 5SL3232-6MB is a 2-pole, B-curve, 32 A unit with a 36 mm width (2 modular units). The 5SL3432-7MB is 4-pole, C-curve, and 72 mm wide, so it takes twice the rail space and has different trip characteristics. They are not drop-in interchangeable."},{"question":"Where can I buy 5SL3432-7MB and get current pricing?","answer":"This part is sourced to order through our independent distribution network. Submit an RFQ for current pricing and availability — we confirm both at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL3432-7MB","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/5SL3432-7MB 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}}