{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SJ4230-8HG41","brand":"Siemens","brandSlug":"siemens","productSlug":"5SJ4230-8HG41","canonicalUrl":"https://aoctrl.com/siemens/5SJ4230-8HG41","factsUrl":"https://aoctrl.com/api/mcp/products/5SJ4230-8HG41","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, 2 MW, DIN rail mount.","salesMarkdown":"Rated 10 kA breaking capacity per EN 60898 and 15 kA per IEC 60947-2 at 400 V AC, it handles fault currents up to those levels without upstream coordination issues. The 2-pole form switches both phase conductors; no neutral pole is built in. The D-curve is the headline selection parameter here. Unlike a B-curve (for resistive/lighting loads) or C-curve (general-purpose), the D-curve's magnetic trip threshold of 10–20× In is sized for motor feeders and transformer primaries where the inrush can hit 12× full-load current for a few cycles. If your BOM calls for a D-curve MCB, this is the correct family — swapping to a C-curve risks nuisance tripping on start-up. The 10 kA (EN 60898) and 15 kA (IEC 60947-2) ratings cover the two common certification regimes; the higher IEC figure matters for industrial installations where the prospective short-circuit current exceeds 10 kA. Rated operational voltage is 400 V AC and 60 V DC. The DC rating is limited to 60 V — not a 125 V DC rail breaker. For DC circuits at higher voltages, a different 5SJ4 variant with a higher DC rating is needed. Mounting position is unrestricted — vertical, horizontal, or upside-down; the mechanism works the same. Depth is 70 mm, which matches the standard 70 mm installation depth for most 5SJ4 enclosures. IP20 at the terminals (finger-safe with connected conductors) and IP40 in the handle area — fine for enclosed panels; not rated for washdown.","metaTitle":"Siemens 5SJ4230-8HG41 SENTRON MCB, 2-Pole, D-Curve, 10 kA","metaDescription":"Siemens 5SJ4230-8HG41 SENTRON miniature circuit breaker, 2-pole, D-curve, 10 kA (EN 60898) / 15 kA (IEC 60947-2), 400 V AC, 60 V DC. IP20/IP40, DIN rail. Available 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":"5SJ4230-8HG41","Height":"110 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 240 V 10kA, 2-pole, D, 30 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":"3.2 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$104.14","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/20381090046dc20ef17ec28f0fd2611d.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=94155&mlfb=5SJ4230-8HG41"},"ai":{"faq":[{"question":"Where can I buy the 5SJ4230-8HG41 and get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm number."},{"question":"What is the breaking capacity of the 5SJ4230-8HG41?","answer":"10 kA per EN 60898 and 15 kA per IEC 60947-2 at 400 V AC."},{"question":"What compliance documentation does Siemens provide for this MCB?","answer":"The 5SJ4 series carries CE marking per the Low Voltage Directive and is designed to EN 60898 and IEC 60947-2. The unit is halogen-free and silicon-free, which simplifies disposal and avoids outgassing concerns in sealed enclosures."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SJ4230-8HG41","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/5SJ4230-8HG41 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}}