{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SP4391-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SP4391-7","canonicalUrl":"https://aoctrl.com/siemens/5SP4391-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SP4391-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SP Miniature circuit breaker, 3-pole, C-curve, 100 A, 10 kA (EN 60898), 400/440 VAC, DIN rail mount, 70 mm installation depth.","salesMarkdown":"The Siemens 5SP4391-7 is a SENTRON 5SP miniature circuit breaker — 3-pole, C-curve, rated 100 A with a 10 kA breaking capacity per EN 60898 at 400 VAC. The C characteristic (5–10× In magnetic trip) suits it for mixed loads where motor inrush and lighting ballasts share the circuit — common in distribution sub-panels feeding contactor panels or small VFD banks. The 4.5 modular-width footprint (81 mm wide) is wider than a typical 3-pole MCB — check your rail space if you're retrofitting into a crowded enclosure. The C-curve trips between 5 and 10 times rated current, so a 100 A C-curve breaker holds through a 500–1000 A inrush — fine for groups of contactors or small transformers, but verify against your specific load's starting current.","metaTitle":"Siemens 5SP4391-7 SENTRON MCB, 3P C-curve 100A 10kA","metaDescription":"Siemens 5SP4391-7 SENTRON miniature circuit breaker, 3-pole, C characteristic, 100 A, 10 kA per EN 60898, 400/440 VAC. Active production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["3-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"81 mm","title":"5SP4391-7","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 10kA, 3-pole, C, 100 A, D=70 mm","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"3P","Number Of Poles":"3","lifecycle_stage":"current","Fastening Method":"DIN rail and screw fixing","Mounting Position":"any","at AC rated value":"440 V","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"3","Product Designation":"Miniature circuit breaker","protection class IP":"IP20 with connected conductors, IP40 in the area of the handle with distribution cover","Overvoltage Category":"3","Tunnel Terminals Top":"Yes","Design Of The Product":"5SP Miniature circuit breakers","Tunnel Terminals Bottom":"Yes","Number Of Modular Width Units":"4.5","Position Of Power Supply Cord":"Any","Tripping Characteristic Class":"C","supply voltage at AC rated value":"400 V","according to EN 60898 rated value":"10 kA","Influence Of The Surrounding Temperature":"Max. 95% rel. humidity","Type Of Voltage Of The Operating Voltage":"AC","Value Range Of The Supply Voltage Frequency":"50/60 Hz","shock resistance according to IEC 60068-2-27":"150m/s² at 11ms half-sine","with multi-phase operation at AC rated value":"440 V","vibration resistance according to IEC 60068-2-6":"50m/s² at 25 to 150Hz and 60m/s² at 35Hz (4sec)","Mechanical Service Life (Operating Cycles) Typical":"10 000","Product Extension Installable Supplementary Devices":"Yes","power loss [W] for rated value of the current at AC in hot operating state per pole":"8 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$87.63","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/7edb527cec28c5f929b9206e98a816d4.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=31759&mlfb=5SP4391-7"},"ai":{"faq":[{"question":"Where can I buy the 5SP4391-7?","answer":"We source the 5SP4391-7 to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the breaking capacity of the 5SP4391-7?","answer":"10 kA per EN 60898 at 400 VAC. That's the standard rating for this class of MCB — sufficient for most light-industrial distribution panels."},{"question":"Will the 5SP4391-7 drop into a panel designed for a 5SP4380-7?","answer":"The 5SP4380-7 is a lower-current variant in the same 5SP family. Same 3-pole C-curve, same DIN-rail footprint, same 70 mm depth — so yes, it's a direct mechanical swap. Just verify the amp rating matches your circuit."},{"question":"What compliance documentation is available for the 5SP4391-7?","answer":"As a Siemens SENTRON product, it carries CE marking and is designed to EN 60898 and IEC 60947-2 standards. The halogen-free and silicon-free construction supports RoHS compliance. Specific certificates (UL, CSA, UKCA) should be confirmed at quote time for your jurisdiction."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SP4391-7","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/5SP4391-7 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}}