{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SJ4104-7HG40","brand":"Siemens","brandSlug":"siemens","productSlug":"5SJ4104-7HG40","canonicalUrl":"https://aoctrl.com/siemens/5SJ4104-7HG40","factsUrl":"https://aoctrl.com/api/mcp/products/5SJ4104-7HG40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SJ4 series, miniature circuit breaker, 1-pole, C characteristic, 10 kA (EN 60898), 15 kA (IEC 60947-2), 400 V AC, 60 V DC, width 18 mm, depth 70 mm, height 90 mm.","salesMarkdown":"The C tripping characteristic handles moderate inrush currents from motor starters or contactor coils, while the 10 kA breaking capacity per EN 60898 (15 kA per IEC 60947-2) covers most industrial fault levels up to 400 V AC. Rated at 400 V AC (60 V DC), this MCB is suited for single-phase branch circuits in 400/230 V distribution boards. The 10 kA rating per EN 60898 is the standard for residential and light-commercial panels; the 15 kA per IEC 60947-2 applies when the breaker is used in industrial applications where higher prospective fault currents are expected — the higher figure is what governs in a factory-floor sub-distribution board. For purely resistive loads or long cable runs, a B-curve would trip faster; for high-inrush transformers, a D-curve is the better call. This one splits the difference for typical mixed loads in a machine panel. With an insulation voltage (Ui) of 440 V AC and overvoltage category III, the breaker is rated for fixed-installation distribution boards where transient overvoltages from the grid are expected. Mounting position is unrestricted, and the supply can come from either end — no top/bottom orientation rules to remember during wiring. Halogen-free and silicon-free construction matters in clean-room or semiconductor-adjacent installations where outgassing can contaminate optics or contacts. The breaker also carries IP20 protection (finger-safe with connected conductors) and IP40 in the handle area, so it's fine for enclosed panels but not for washdown zones.","metaTitle":"Siemens 5SJ4104-7HG40 SENTRON MCB, 1P, C-Curve, 10kA","metaDescription":"Siemens 5SJ4104-7HG40 SENTRON miniature circuit breaker, 1-pole, C characteristic, 10 kA per EN 60898, 15 kA per IEC 60947-2, 400 V AC, 60 V DC, 18 mm wide, IP20. Available to orde","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":"5SJ4104-7HG40","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 240 V 14kA, 1-pole, C, 4A, D=70 mm according to UL 489, equal polarity","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"1P","Number Of Poles":"1","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":"1","Position Of Power Supply Cord":"Any","Tripping Characteristic Class":"C","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","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":"1.8 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/2fe2213bece422299c444c6e47cb4b3a.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=235400&mlfb=5SJ4104-7HG40"},"ai":{"faq":[{"question":"What are the key ratings for the 5SJ4104-7HG40?","answer":"It is a 1-pole C-curve MCB rated at 400 V AC / 60 V DC, with a breaking capacity of 10 kA per EN 60898 and 15 kA per IEC 60947-2. It measures 18 mm wide, 70 mm deep, and 90 mm high, and mounts on a standard DIN rail."},{"question":"Where can I buy the 5SJ4104-7HG40?","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 your quantity and delivery window."},{"question":"Will the 5SJ4104-7HG40 drop into a panel designed for the 5SY4116-7CV?","answer":"Both are 1-pole DIN-rail MCBs with the same 18 mm width, so the mechanical fit is identical. The 5SJ4104-7HG40 has a C-curve and 10/15 kA breaking capacity, while the 5SY4116-7CV has a different characteristic — verify the tripping curve and rated current against your circuit before swapping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SJ4104-7HG40","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/5SJ4104-7HG40 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}}