{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SJ4214-7HG41","brand":"Siemens","brandSlug":"siemens","productSlug":"5SJ4214-7HG41","canonicalUrl":"https://aoctrl.com/siemens/5SJ4214-7HG41","factsUrl":"https://aoctrl.com/api/mcp/products/5SJ4214-7HG41","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SJ4 miniature circuit breaker, 2-pole, C-curve, 0.3 A rated current at 30/40 °C, snap-on DIN rail, IP20/IP40, halogen-free.","salesMarkdown":"The Siemens 5SJ4214-7HG41 is a 2-pole miniature circuit breaker from the SENTRON 5SJ4 series, rated 0.3 A at 30/40 °C with a C tripping characteristic. ## Ratings that govern the real load The 0.3 A rating is not a single number — it derates with ambient temperature. At 30 °C and 40 °C it holds 0.3 A; at 45 °C it drops to 0.29 A; at 50 °C to 0.28 A; at 55 °C to 0.26 A; and at 60 °C to 0.25 A. For a 0.3 A control transformer or a small relay bank, that derating is manageable — but for a load near the limit, factor in the peak ambient. Vibration resistance is 50 m/s² at 25–150 Hz and 60 m/s² at 35 Hz (4 s), so it holds up on a machine frame or conveyor drive.","metaTitle":"Siemens 5SJ4214-7HG41 SENTRON MCB, 2-Pole C 0.3 A","metaDescription":"Siemens 5SJ4214-7HG41 SENTRON miniature circuit breaker, 2-pole, C-curve, 0.3 A rated current at 30/40 °C. IP20/IP40, snap-on DIN rail, -40 to 75 °C. 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":"5SJ4214-7HG41","Height":"110 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 240 V 14kA, 2-pole, C, 0.3A, D=70 mm according to UL 489","Halogen-Free":"Yes","Silicon-Free":"Yes","Number Of Poles":"2","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":"0.3 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","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":"0.3 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","according to IEC 81346-2":"F","Suitability For Operation":"Mechanical engineering / industry","Number Of Modular Width Units":"2","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)","Type Of Voltage / Of The Operating Voltage":"AC/DC","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/d2749008ba0e3784137ede59b33860b6.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=242683&mlfb=5SJ4214-7HG41"},"ai":{"faq":[{"question":"Where can I buy 5SJ4214-7HG41?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the rated current of 5SJ4214-7HG41?","answer":"Rated 0.3 A at 30 °C and 40 °C, with derating to 0.25 A at 60 °C. The C-curve trips magnetically between 5 and 10 times In."},{"question":"Does 5SJ4214-7HG41 drop into a panel designed for 5SJ6220-6?","answer":"Both are 2-pole MCBs on a 36 mm wide DIN-rail footprint, so the mechanical fit is identical. The difference is the current rating and curve — verify the load requirements before swapping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SJ4214-7HG41","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/5SJ4214-7HG41 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}}