{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SJ4345-7HG41","brand":"Siemens","brandSlug":"siemens","productSlug":"5SJ4345-7HG41","canonicalUrl":"https://aoctrl.com/siemens/5SJ4345-7HG41","factsUrl":"https://aoctrl.com/api/mcp/products/5SJ4345-7HG41","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SJ4345-7HG41, 3-pole miniature circuit breaker, C-curve, 10 kA (EN 60898) / 15 kA (IEC 60947-2), 400 V AC / 60 V DC, 3 modular width units, DIN-rail mount.","salesMarkdown":"## C-curve trip and breaking capacity for panel protection Rated breaking capacity is 10 kA per EN 60898 and 15 kA per IEC 60947-2 at 400 V AC — the higher IEC figure covers industrial panel SCCR requirements where the breaker is listed as a branch-circuit protective device. ## AC and DC voltage envelope Insulation voltage (Ui) is 440 V AC, and the overvoltage category is III with pollution degree 3 — suitable for fixed-installation panels in industrial environments where transient overvoltages are expected. ## DIN-rail footprint and mounting Occupies 3 modular width units (54 mm wide) on standard mounting rail, with a depth of 70 mm and height of 110 mm — the 70 mm installation depth leaves room for wiring behind the breaker in a shallow enclosure. ## Environmental and compliance specs Halogen-free and silicon-free construction, with IP20 protection (IP40 in the handle area when conductors are connected) — the halogen-free spec matters for panels in high-occupancy buildings where low-smoke, zero-halogen cabling is mandated. Vibration resistance tested to 50 m/s² at 25–150 Hz and 60 m/s² at 35 Hz (4-second dwell) — relevant for installation on machinery or near rotating equipment where the panel sees continuous vibration.","metaTitle":"Siemens 5SJ4345-7HG41 SENTRON 3-Pole MCB, C-Curve, 10 kA","metaDescription":"Siemens 5SJ4345-7HG41 SENTRON 3-pole MCB, C-curve, 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":["Miniature Circuit Breakers (MCB)"],"specifications":{"Depth":"70 mm","Width":"54 mm","Height":"110 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"3P","Number Of Poles":"3","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":"3","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":"6.1 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$431.73","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/799922558449806fa093639ee1e427d3.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=463075&mlfb=5SJ4345-7HG41","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SJ4345-7HG41/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for 5SJ4345-7HG41?","answer":"C-curve tripping characteristic, 10 kA breaking capacity per EN 60898 and 15 kA per IEC 60947-2 at 400 V AC, rated 60 V DC maximum. Three poles, 3 modular width units (54 mm), depth 70 mm."},{"question":"Where can I buy the Siemens 5SJ4345-7HG41?","answer":"Sourced and quoted to order against your RFQ through independent distribution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SJ4345-7HG41","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/5SJ4345-7HG41 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}}