{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SJ4145-7HG41","brand":"Siemens","brandSlug":"siemens","productSlug":"5SJ4145-7HG41","canonicalUrl":"https://aoctrl.com/siemens/5SJ4145-7HG41","factsUrl":"https://aoctrl.com/api/mcp/products/5SJ4145-7HG41","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SJ4 series, miniature circuit breaker, 1-pole C-curve, 10 kA (EN 60898) / 15 kA (IEC 60947-2), 400 V AC / 60 V DC, 18 mm width, DIN-rail mount.","salesMarkdown":"The Siemens 5SJ4145-7HG41 is a SENTRON 1-pole miniature circuit breaker with a C-curve trip characteristic, rated 10 kA interrupting capacity per EN 60898 and 15 kA per IEC 60947-2 at 400 V AC. At 60 V DC the same breaker handles control-circuit protection on a DC bus — common in 24 V or 48 V automation supplies, though the DC rating is a single-pole break, so it's one wire only. The IP20 rating (IP40 in the handle area) is standard for panel-mount breakers — not for wet washdown, but fine inside a sealed enclosure. Designed for mechanical engineering and industrial environments per the manufacturer's suitability listing. The 50 m/s² vibration resistance (25–150 Hz) and 60 m/s² at 35 Hz for 4 seconds mean it holds calibration and contact pressure on a machine-tool panel or conveyor drive cabinet — not just a static distribution board. Halogen-free and silicon-free construction avoids outgassing issues near sensitive electronics or in clean-room adjacent zones. Sealable with a lead or tag (yes, the spec confirms it), which matters for applications requiring tamper-evident isolation — think safety circuits or metering points where you need to prove the breaker hasn't been reset without authorization.","metaTitle":"Siemens 5SJ4145-7HG41 SENTRON MCB, 1P C-curve, 10 kA","metaDescription":"Siemens 5SJ4145-7HG41 SENTRON miniature circuit breaker, 1-pole, C-curve, 10 kA (EN 60898) / 15 kA (IEC 60947-2), 400 V AC / 60 V DC, 18 mm wide, DIN-rail mount. Active production,","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":"5SJ4145-7HG41","Height":"110 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Rated Value":"50 Hz","description":"Miniature circuit breaker 240 V 10kA, 1-pole, C, 45 A, D=70 mm according to UL 489","Halogen-Free":"Yes","Silicon-Free":"Yes","Number Of Poles":"1","Type Of Voltage":"AC/DC","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","acc. to IEC 81346-2":"F","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","Number Of Poles / Note":"1P","acc. to DIN EN 61346-2":"F","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","Number Of Modular Width Units":"1","Tripping Characteristic Class":"C","at DC / rated value / maximum":"60 V","acc. to EN 60898 / rated value":"10 kA","Position / Of Power Supply Cord":"Any","acc. to IEC 60947-2 / rated value":"15 kA","Product Feature / Touch Protection":"Yes","supply voltage / at AC / rated value":"400 V","installation environment regarding EMC":"Suitable for environment B (immunity to interference not applicable)","Influence Of The Surrounding Temperature":"max. 95% humidity","insulation voltage / at AC / rated value":"440 V","operational current / at AC / rated value":"45 A","vibration resistance / acc. to IEC 60068-2-6":"50 m/s² at 25 to 150Hz and 60m/s² at 35Hz (4sec)","Product Function / Neutral Conductor Switching":"No","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/e5207c4e8e27a2459de89b987ca213c7.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=456521&mlfb=5SJ4145-7HG41"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SJ4145-7HG41","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/5SJ4145-7HG41 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}}