{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SJ4314-8HG41","brand":"Siemens","brandSlug":"siemens","productSlug":"5SJ4314-8HG41","canonicalUrl":"https://aoctrl.com/siemens/5SJ4314-8HG41","factsUrl":"https://aoctrl.com/api/mcp/products/5SJ4314-8HG41","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SJ4314-8HG41, miniature circuit breaker, 3-pole, D tripping characteristic, 0.3 A rated current at 30 °C, DIN rail mount, IP20/IP40.","salesMarkdown":"The Siemens SENTRON 5SJ4314-8HG41 is a 3-pole miniature circuit breaker with a D tripping characteristic, rated at 0.3 A at 30 °C. It's part of the 5SJ4 series, designed for DIN-rail mounting in control panels and distribution boards. At 0.3 A, it's sized for small control transformers or signal circuits, not main power feeds. The D characteristic provides a magnetic trip threshold of 10 to 20 times the rated current, so this 0.3 A breaker will hold through short-duration surges up to roughly 3 to 6 A before the magnetic coil reacts. That's the right choice for a small control transformer or a relay coil bank where the inrush is brief but high. The thermal element handles the continuous overload side — at 40 °C it still carries the full 0.3 A, but at 60 °C it derates to 0.25 A. Rated for AC/DC operation with a maximum DC voltage of 60 V. That covers most 24 VDC control circuits and 48 VDC telecom supplies, but not a 125 VDC battery bank. The housing carries IP20 with connected conductors, and IP40 in the handle range. That's standard for a DIN-rail MCB inside a closed panel — no special washdown rating. If the breaker is mounted where operators can touch the handle, the IP40 on the toggle is enough for accidental splashes, but not hose-down. Sealable — you can wire a seal through the housing to prevent tampering, which matters for revenue-grade metering or safety-critical circuits where the breaker setting must stay locked. Halogen-free and silicon-free construction reduces toxic smoke and corrosive byproducts in a fault scenario, a consideration for enclosed switchgear or clean-room adjacent panels.","metaTitle":"Siemens SENTRON 5SJ4314-8HG41 MCB, D Curve, 0.3 A, 3-Pole","metaDescription":"Siemens SENTRON 5SJ4314-8HG41 miniature circuit breaker, 0.3 A rated, D tripping characteristic, 3-pole, DIN rail mount. Current lifecycle stage. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["3-Pole MCB (DIN Rail)"],"specifications":{"Depth":"70 mm","Width":"54 mm","title":"5SJ4314-8HG41","Height":"110 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 240 V 14kA, 3-pole, D, 0.3A, D=70 mm according to UL 489","Halogen-Free":"Yes","Silicon-Free":"Yes","Number Of Poles":"3","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","at AC / rated value":"0.3 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","Number Of Poles / Note":"3P","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","at 30 °C / rated value":"0.3 A","at 40 °C / rated value":"0.3 A","at 45 °C / rated value":"0.29 A","at 50 °C / rated value":"0.28 A","at 55 °C / rated value":"0.26 A","at 60 °C / rated value":"0.25 A","Combined Terminal Bottom":"Yes","Suitability For Operation":"Mechanical engineering / industry","Number Of Modular Width Units":"3","Tripping Characteristic Class":"D","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","Product Function / Neutral Conductor Switching":"No","Mechanical Service Life (Operating Cycles) / Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/9ff6b604a50c01252b61e732ee07f015.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=354397&mlfb=5SJ4314-8HG41"},"ai":{"faq":[{"question":"What is the 5SJ4314-8HG41 used for?","answer":"It's a 3-pole miniature circuit breaker with a D tripping characteristic, rated 0.3 A. The D curve suits loads with high inrush current — small motors, control transformers, solenoid banks — where a standard C curve would nuisance-trip on startup."},{"question":"What is the depth of the 5SJ4314-8HG41?","answer":"The depth is 70 mm, which is also the installation depth. It sits flush with other 5SJ4 series breakers on the same DIN rail."},{"question":"What is the width of the 5SJ4314-8HG41?","answer":"The width is 54 mm, which corresponds to 3 modular width units at 18 mm per pole — the standard Siemens footprint."},{"question":"Where can I buy the 5SJ4314-8HG41 and get current pricing?","answer":"This part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What compliance documentation does Siemens provide for the 5SJ4314-8HG41?","answer":"The product carries the SENTRON brand and is designed to IEC standards. The housing is halogen-free and silicon-free. For specific RoHS, REACH, or UL documentation, request the manufacturer's declaration with your RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SJ4314-8HG41","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/5SJ4314-8HG41 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}}