{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SJ4140-7HG40","brand":"Siemens","brandSlug":"siemens","productSlug":"5SJ4140-7HG40","canonicalUrl":"https://aoctrl.com/siemens/5SJ4140-7HG40","factsUrl":"https://aoctrl.com/api/mcp/products/5SJ4140-7HG40","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, 18 mm wide, DIN rail mount.","salesMarkdown":"The Siemens 5SJ4140-7HG40 is a 1-pole miniature circuit breaker from the SENTRON 5SJ4 series, with a C-curve trip characteristic that trips between 5 and 10 times rated current — the standard choice for mixed resistive and moderate inductive loads like small motor circuits, lighting banks, and control transformers. Rated 400 V AC, 60 V DC, it fits single-phase branch circuits in 230/400 V networks. Snap-on mounting to standard DIN rail (35 mm per EN 60715). The 70 mm depth (installation depth) is the dimension from rail back to the front of the toggle — check enclosure depth clearance, especially in shallow gland-plate boxes.","metaTitle":"Siemens 5SJ4140-7HG40 SENTRON MCB, 1-Pole C-Curve, 10 kA","metaDescription":"Siemens SENTRON 5SJ4140-7HG40 miniature circuit breaker, 1-pole, C-curve, 10 kA per EN 60898. 18 mm wide, DIN rail mount. Sourced to order.","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","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","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","Value Range Of The Supply Voltage Frequency":"50/60 Hz","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":"4.8 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$35.56","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/ba06dd5bf30b7134b48f21ac94d428c5.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=491723&mlfb=5SJ4140-7HG40","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SJ4140-7HG40/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SJ4140-7HG40?","answer":"10 kA per EN 60898 and 15 kA per IEC 60947-2, both at 400 V AC."},{"question":"Where can I buy the 5SJ4140-7HG40?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"Does the 5SJ4140-7HG40 have a DC rating?","answer":"Yes, rated 60 V DC maximum for DC branch circuits."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SJ4140-7HG40","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/5SJ4140-7HG40 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}