{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SJ4232-8HG42","brand":"Siemens","brandSlug":"siemens","productSlug":"5SJ4232-8HG42","canonicalUrl":"https://aoctrl.com/siemens/5SJ4232-8HG42","factsUrl":"https://aoctrl.com/api/mcp/products/5SJ4232-8HG42","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SJ4232-8HG42, 2-pole miniature circuit breaker, 32 A rated at 30 °C, DIN rail mount.","salesMarkdown":"## 32 A, 2-pole — the panel fit check The Siemens 5SJ4232-8HG42 is a 2-pole miniature circuit breaker from the SENTRON 5SJ4 series, rated 32 A at 30 °C. That 32 A holds steady up to 40 °C ambient, then derates to 30.4 A at 50 °C and 28.8 A at 60 °C — so if the panel runs hot, you budget the derate rather than the nameplate. The IP20 rating (IP40 on the handle) is typical for a DIN-rail enclosure; it needs the panel door to keep washdown out. Vibration resistance at 50 m/s² from 25 to 150 Hz (and 60 m/s² at 35 Hz for 4 seconds) covers the shock and vibe you see on machine-tool panels or conveyors bolted to a steel frame. The sealable design lets the installer lock the handle position after commissioning. DC-rated up to 60 V maximum — so it works on 24 VDC control circuits but not on a 125 VDC battery bank. The neutral conductor is not switched (2-pole, both poles are line/load). ## Lifecycle and sourcing — active, no replacement drama","metaTitle":"Siemens 5SJ4232-8HG42 2-Pole MCB, 32 A, SENTRON","metaDescription":"Siemens 5SJ4232-8HG42 2-pole MCB, 32 A rated, SENTRON series, DIN rail mount. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["2-Pole MCB (DIN Rail)"],"specifications":{"Depth":"70 mm","Width":"36 mm","title":"5SJ4232-8HG42","Height":"121 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Circuit breaker 10kA, 2-pole, D, 32A according to UL 489-480Y/277V","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"2P","Number Of Poles":"2","lifecycle_stage":"current","Fastening Method":"on standard mounting rail","Mounting Position":"any","at AC rated value":"32 A","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"3","Product Designation":"Miniature circuit breakers","protection class IP":"IP20, with connected conductors, IP 40 in the handle range","Overvoltage Category":"3","Tunnel Terminals Top":"No","Vibration Resistance":"50 m/s² at 25 to 150Hz and 60m/s² at 35Hz (4sec)","Combined Terminal Top":"Yes","Design Of The Product":"Miniature circuit-breaker 5SJ4","Product Function Note":"Terminal tightening torque for Cu, 60/75°C; 3.5Nm/31lb.in","at 30 °C rated value":"32 A","at 40 °C rated value":"32 A","at 45 °C rated value":"31 A","at 50 °C rated value":"30.4 A","at 55 °C rated value":"29.6 A","at 60 °C rated value":"28.8 A","Tunnel Terminals Bottom":"No","according to EN 61346-2":"F","Combined Terminal Bottom":"Yes","according to IEC 81346-2":"F","Suitability For Operation":"Mechanical engineering / industry","at DC rated value maximum":"60 V","Neutral Conductor Switching":"No","Number Of Modular Width Units":"2","Position Of Power Supply Cord":"Any","Tripping Characteristic Class":"D","supply voltage at AC rated value":"400 V","according to EN 60898 rated value":"10 kA","Ambient Temperature During Operation":"max. 95% humidity","Supply Voltage Frequency Rated Value":"50 Hz","according to IEC 60947-2 rated value":"15 kA","installation environment regarding EMC":"Suitable for environment B (immunity to interference not applicable)","Type Of Voltage Of The Operating Voltage":"AC/DC","insulation voltage (Ui) at AC rated value":"440 V","Value Range Of The Supply Voltage Frequency":"50/60 Hz","vibration resistance according to IEC 60068-2-6":"±1 mm at 5 to 25 Hz; 50 m/s² at 25 to 150 Hz","Mechanical Service Life (Switching Cycles) Typical":"10 000","Product Extension Installable Supplementary Devices":"Yes","Tightening Torque With Screw-Type Terminals Maximum":"3.5 N·m","power loss [W] for rated value of the current at AC in hot operating state per pole":"3.7 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$243.13","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/f9f22fe1587ef0942a26b6e98bad6bed.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=507528&mlfb=5SJ4232-8HG42"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SJ4232-8HG42","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/5SJ4232-8HG42 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}}