{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SJ4203-8HG41","brand":"Siemens","brandSlug":"siemens","productSlug":"5SJ4203-8HG41","canonicalUrl":"https://aoctrl.com/siemens/5SJ4203-8HG41","factsUrl":"https://aoctrl.com/api/mcp/products/5SJ4203-8HG41","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SJ4 miniature circuit breaker, 2-pole, D tripping characteristic, 10 kA (EN 60898) / 15 kA (IEC 60947-2), 400 V AC, 60 V DC, width 36 mm, depth 70 mm, height 110 mm.","salesMarkdown":"The Siemens 5SJ4203-8HG41 is a SENTRON 5SJ4 miniature circuit breaker (MCB) with a 2-pole design and D tripping characteristic, sized for 400 V AC and 60 V DC circuits. Its 10 kA breaking capacity per EN 60898 and 15 kA per IEC 60947-2 mean it handles moderate fault currents in industrial panelboards — the higher IEC figure gives headroom for motor-starting or transformer inrush where coordination studies demand the 60947-2 rating. The D curve (10–20× In) avoids nuisance trips on high-inrush loads like small motors or solenoid banks. IP20 with connected conductors (IP40 in the handle area) — suitable for enclosed panels; not rated for washdown. Halogen-free and silicon-free construction, sealable for tamper-proofing. Vibration resistance: 50 m/s² at 25–150 Hz and 60 m/s² at 35 Hz (4 s). Listed as current-production (active lifecycle stage). No official successor — this is the current catalog number.","metaTitle":"Siemens 5SJ4203-8HG41 SENTRON MCB, 2P D-10kA, 70mm","metaDescription":"Siemens 5SJ4203-8HG41 SENTRON miniature circuit breaker, 2-pole, D-curve, 10 kA (EN 60898), 15 kA (IEC 60947-2), 400 V AC. Halogen-free, sealable, DIN-rail mount. Available to orde","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":"5SJ4203-8HG41","Height":"110 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 240 V 14kA, 2-pole, D, 3 A, D=70 mm according to UL 489","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":"400 V","at DC rated value":"60 V","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","Tunnel Terminals Bottom":"No","Combined Terminal Bottom":"Yes","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","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)","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 (Operating 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":"1.8 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$104.14","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/5061a140d5cc5d24176b4e1479c3265b.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=215042&mlfb=5SJ4203-8HG41"},"ai":{"faq":[{"question":"Where can I buy 5SJ4203-8HG41 and get a price?","answer":"Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time."},{"question":"What are the key ratings of 5SJ4203-8HG41?","answer":"2-pole, D-curve, 10 kA (EN 60898) / 15 kA (IEC 60947-2), 400 V AC / 60 V DC, 50 Hz, insulation voltage 440 V AC."},{"question":"What is the physical size of 5SJ4203-8HG41?","answer":"Width 36 mm (2 MW), depth 70 mm, height 110 mm. Mounts on standard DIN rail."},{"question":"Does 5SJ4203-8HG41 have any special environmental certifications?","answer":"Halogen-free, silicon-free, sealable, rated -40 °C to 75 °C, IP20/IP40, pollution degree 3, overvoltage category III."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SJ4203-8HG41","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/5SJ4203-8HG41 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}}