{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SJ4206-7HG42","brand":"Siemens","brandSlug":"siemens","productSlug":"5SJ4206-7HG42","canonicalUrl":"https://aoctrl.com/siemens/5SJ4206-7HG42","factsUrl":"https://aoctrl.com/api/mcp/products/5SJ4206-7HG42","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SJ4 series, 2-pole miniature circuit breaker, C-curve, 10 kA (EN 60898) / 15 kA (IEC 60947-2), 400 V AC, 60 V DC, 36 mm wide, 70 mm deep, 121 mm tall.","salesMarkdown":"## What this 2-pole C-curve MCB does on the rail Breaking capacity is rated 10 kA per EN 60898 and 15 kA per IEC 60947-2 at 400 V AC. That 15 kA figure under the industrial standard gives you headroom for higher fault-current panels — the EN 60898 rating covers the residential/commercial side, while the IEC 60947-2 rating is what you use for industrial coordination studies. On the DC side, it's rated 60 V maximum, so it handles control-circuit protection and small DC bus feeds within that voltage ceiling. Dimensions: 36 mm wide, 70 mm deep, 121 mm tall. The 70 mm installation depth matches standard DIN-rail enclosures; no extra clearance needed behind the rail. That -40 °C low end is unusual for a standard MCB — it's specified for cold storage, outdoor cabinets, or unheated enclosures in northern climates. The 75 °C high end covers most industrial panel internal temperatures without derating. Protection class: IP20 with connected conductors, IP40 in the handle range. ## Material compliance and terminal details Vibration resistance: 50 m/s² at 25 to 150 Hz and 60 m/s² at 35 Hz (4 seconds). This covers most industrial machinery and conveyor applications without needing additional clamping.","metaTitle":"Siemens 5SJ4206-7HG42 SENTRON MCB, 2P C-curve, 10kA","metaDescription":"Siemens 5SJ4206-7HG42 SENTRON 2-pole miniature circuit breaker, C characteristic, 10 kA per EN 60898, 15 kA per IEC 60947-2, 400 V AC, 60 V DC. Active production, sourced 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":"5SJ4206-7HG42","Height":"121 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Circuit breaker 10kA, 2-pole, C, 6A according to UL 489-480Y/277V","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"2P","Number Of Poles":"2","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":"2","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":"2.7 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$90.17","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/3a7334954586e05f0e6f1b4dd8406da7.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=279721&mlfb=5SJ4206-7HG42"},"ai":{"faq":[{"question":"What is the closest functional alternative to 5SJ4206-7HG42?","answer":"The 5SY4304-7CV is a 2-pole C-curve MCB from the same SENTRON family, but it uses a different breaking capacity rating and physical footprint. The 5SJ4206-7HG42 is 36 mm wide (2 MW) with a 70 mm depth; the 5SY series may differ in width and depth, so panel cutouts and rail spacing need verification before substitution."},{"question":"What compliance documentation does 5SJ4206-7HG42 carry?","answer":"The part is rated per EN 60898 (10 kA) and IEC 60947-2 (15 kA), with insulation voltage 440 V AC and overvoltage category III. It is halogen-free and silicon-free. Standard Siemens SENTRON documentation includes CE declaration and RoHS/REACH compliance data available on request."},{"question":"How do I get current pricing and availability for 5SJ4206-7HG42?","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 a firm price and lead time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SJ4206-7HG42","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/5SJ4206-7HG42 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}}