{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SJ4105-7HG41","brand":"Siemens","brandSlug":"siemens","productSlug":"5SJ4105-7HG41","canonicalUrl":"https://aoctrl.com/siemens/5SJ4105-7HG41","factsUrl":"https://aoctrl.com/api/mcp/products/5SJ4105-7HG41","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SJ4 series, miniature circuit breaker, 1-pole, C-curve, 0.5 A rated current, DIN rail mount, IP20, 70 mm depth, 18 mm width.","salesMarkdown":"## Siemens 5SJ4105-7HG41 — SENTRON 1-pole C-curve MCB, 0.5 A The Siemens 5SJ4105-7HG41 is a 1-pole miniature circuit breaker from the SENTRON 5SJ4 series, rated 0.5 A at 30 °C with a C-curve tripping characteristic — the standard choice for general-purpose branch-circuit protection in industrial control panels where moderate inrush (transformers, contactor coils, small motor starters) is expected. Rated for 60 V DC maximum, it also covers DC control circuits common in 24 V and 48 V automation loops, though the C-curve is primarily selected for AC applications. At elevated panel temperatures the breaker derates linearly: 0.48 A at 45 °C, 0.46 A at 50 °C, 0.44 A at 55 °C, and 0.42 A at 60 °C. C-curve trips at 5–10× rated current, so a 0.5 A breaker clears between 2.5 A and 5 A magnetic trip — appropriate for protecting a 0.5 A control transformer or a small solenoid bank where the inrush is a few times the load current. The part is sealable, halogen-free, and silicon-free — relevant for panels that require clean-room or food-grade material restrictions.","metaTitle":"Siemens 5SJ4105-7HG41 SENTRON MCB, 1-pole C-curve 0.5 A","metaDescription":"Siemens 5SJ4105-7HG41 SENTRON miniature circuit breaker, 1-pole, C-curve, 0.5 A rated at 30 °C. DIN rail mount, IP20, -40 to 75 °C. Active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"70 mm","Width":"18 mm","title":"5SJ4105-7HG41","Height":"110 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 240 V 14kA, 1-pole, C, 0.5A, D=70 mm according to UL 489","Halogen-Free":"Yes","Silicon-Free":"Yes","Number Of Poles":"1","lifecycle_stage":"current","Fastening Method":"on standard mounting rail","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"3","Product Designation":"Miniature circuit breakers","at AC / rated value":"0.5 A","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","according to EN 61346-2":"F","at 30 °C / rated value":"0.5 A","at 40 °C / rated value":"0.5 A","at 45 °C / rated value":"0.48 A","at 50 °C / rated value":"0.46 A","at 55 °C / rated value":"0.44 A","at 60 °C / rated value":"0.42 A","Combined Terminal Bottom":"Yes","according to IEC 81346-2":"F","Suitability For Operation":"Mechanical engineering / industry","Number Of Modular Width Units":"1","Tripping Characteristic Class":"C","at DC / rated value / maximum":"60 V","Position / Of Power Supply Cord":"Any","Product Feature / Touch Protection":"Yes","according to EN 60898 / rated value":"10 kA","supply voltage / at AC / rated value":"400 V","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","Product Component / Neutral Conductor Switching":"No","Mechanical Service Life (Switching Cycles) / Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/01d909d3ed0d936b09beaa476823b47d.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=394019&mlfb=5SJ4105-7HG41"},"ai":{"faq":[{"question":"Will 5SJ4105-7HG41 drop into a panel specified around 5SY4140-7 without rewiring?","answer":"Both are 1-pole C-curve MCBs on standard DIN rail with the same 18 mm width, so mechanical fit is identical. However, 5SY4140-7 is rated 40 A versus 0.5 A — the conductor sizing and upstream protection must match the 0.5 A rating. If the panel wiring is sized for 40 A, you cannot simply swap in a 0.5 A breaker without rewiring the branch circuit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SJ4105-7HG41","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/5SJ4105-7HG41 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}}