{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SJ4101-7HG42","brand":"Siemens","brandSlug":"siemens","productSlug":"5SJ4101-7HG42","canonicalUrl":"https://aoctrl.com/siemens/5SJ4101-7HG42","factsUrl":"https://aoctrl.com/api/mcp/products/5SJ4101-7HG42","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SJ4 series, 5SJ4101-7HG42, 1-pole miniature circuit breaker, C-curve, 10 kA (EN 60898) / 15 kA (IEC 60947-2), 400 V AC, 60 V DC, 18 mm width.","salesMarkdown":"Rated 10 kA breaking capacity per EN 60898 and 15 kA per IEC 60947-2 at 400 V AC, so it safely interrupts faults up to those levels without cascading upstream. The 15 kA figure under the industrial standard gives headroom for higher fault-current panels. Also rated for DC circuits up to 60 V, which covers control-voltage supplies and signal loops common in automation racks. ## Built for the nacelle — wide temperature and vibration Vibration resistance rated at 50 m/s² over 25 to 150 Hz and 60 m/s² at 35 Hz (4-second dwell). That is enough to handle the shake from gear mesh and blade pass frequencies without the breaker tripping or the contacts fretting. No up-tower swaps needed if the turbine is within those limits. Halogen-free and silicon-free construction, which matters in enclosed panels where outgassing could corrode nearby contacts or sensitive electronics. Width is 18 mm (1 modular unit), depth 70 mm, height 121 mm. Snaps onto standard DIN rail; mounting position any orientation. Sealable design allows padlocking in the OFF position for lockout/tagout procedures. IP20 with conductors connected, IP40 in the handle area — fine for dry indoor panels; not rated for washdown.","metaTitle":"Siemens SENTRON 5SJ4101-7HG42 MCB, 1P C-curve 10kA 400V","metaDescription":"Siemens SENTRON 5SJ4101-7HG42 miniature circuit breaker, 1-pole, C-curve, 10kA per EN 60898, 15kA per IEC 60947-2, 400V AC, 60V DC, -40 to 75°C, IP20, current lifecycle.","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":"5SJ4101-7HG42","Height":"121 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Circuit breaker 10kA, 1-pole, C, 1A according to UL 489-277V","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":"1.7 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$104.28","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/cc7b26f86e60d21a4aad370dac9dfa04.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=409814&mlfb=5SJ4101-7HG42"},"ai":{"faq":[{"question":"What are the key ratings for this MCB?","answer":"C-curve, 1-pole, 10 kA per EN 60898, 15 kA per IEC 60947-2 at 400 V AC, 60 V DC. Temperature range -40 to 75 °C. Vibration rated 50 m/s² at 25–150 Hz."},{"question":"Does the 5SJ4101-7HG42 drop into a panel built for the 5SL4363-7?","answer":"Not directly — the 5SL4363-7 is a different series with different breaking capacities and physical dimensions. The 5SJ4101-7HG42 is the correct replacement only if the original BOM specifies the 5SJ4 series."},{"question":"What compliance documentation is available for this part?","answer":"The part carries EN 60898 and IEC 60947-2 ratings. It is halogen-free and silicon-free. Specific RoHS/REACH/UL declarations are available on request through the RFQ process."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SJ4101-7HG42","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/5SJ4101-7HG42 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}}