{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY6401-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY6401-7","canonicalUrl":"https://aoctrl.com/siemens/5SY6401-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SY6401-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY6401-7 miniature circuit breaker, 4-pole, C-curve, 6 kA (EN 60898-1) / 30 kA (IEC 60947-2), 400 V AC, 72 mm wide, IP20.","salesMarkdown":"## What it is and what it does The Siemens 5SY6401-7 is a SENTRON miniature circuit breaker (MCB) with four poles, a C-tripping characteristic, and a double-rated breaking capacity: 6 kA per EN 60898-1 for general distribution and 30 kA per IEC 60947-2 for industrial feeder duty. That 30 kA rating at 400 V AC means it can interrupt high-fault-current faults in an industrial panel without upstream fuses having to clear first — a real selectivity headroom advantage when you're coordinating a main-tie-main lineup. ## Mounting and panel fit Snaps onto DIN rail via the quick-assembly system, occupies 4 modular width units (72 mm wide), and can be mounted in any position. Installation depth is 70 mm; overall depth is 76 mm. The combined top and bottom terminals accept conductors up to the standard MCB range, and the unit is sealable for panel-lockout programs. ## Standards and compliance Rated under IEC / EN 60898-1 and IEC / EN 60947-2 / UL1077, so it carries the dual certification for both residential-style distribution boards and industrial switchgear. Pollution degree 3, overvoltage category III. Halogen-free and silicon-free construction. IP20 with connected conductors — fine for enclosed panel use, not for wet-area exposure.","metaTitle":"Siemens 5SY6401-7 SENTRON MCB, 4P C-curve, 6kA IEC, 30kA IEC","metaDescription":"Siemens 5SY6401-7 SENTRON miniature circuit breaker, 4-pole, C-curve, 6 kA per EN 60898-1 / 30 kA per IEC 60947-2. Active production. Quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Depth":"76 mm","Width":"72 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Standard":"IEC / EN 60898-1, IEC / EN 60947-2 / UL1077","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"4P","Number Of Poles":"4","lifecycle_stage":"current","Fastening Method":"Quick assembly system","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 breaker","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Combined Terminal Top":"Yes","Energy Limitation Class":"3","Combined Terminal Bottom":"Yes","Suitability For Operation":"Mechanical engineering / industry","Neutral Conductor Switching":"No","Number Of Modular Width Units":"4","Position Of Power Supply Cord":"Any","Tripping Characteristic Class":"C","according to EN 60898 rated value":"6 kA","according to IEC 60947-2 rated value":"30 kA","Influence Of The Surrounding Temperature":"max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C","Type Of Voltage Of The Operating Voltage":"AC","at DC according to IEC 60947-2 rated value":"15 kA","Value Range Of The Supply Voltage Frequency":"50/60 Hz","operating voltage at DC rated value maximum":"72 V","with multi-phase operation at AC rated value":"440 V","with single-phase operation at AC rated value":"440 V","at AC according to UL 1077 and CSA C22.2 No.235":"5 kA","vibration resistance according to IEC 60068-2-6":"±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz","Mechanical Service Life (Operating Cycles) Typical":"10 000","Product Extension Installable Supplementary Devices":"Yes","supply voltage with single-phase operation at AC rated value":"230 V","power loss [W] for rated value of the current at AC in hot operating state per pole":"1.2 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$62.23","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=224499&mlfb=5SY6401-7","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY6401-7/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SY6401-7 and how do I get a price?","answer":"It is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current availability and pricing — no stock or price figures are published here."},{"question":"What is 5SY6401-7's listed depth (76 mm) on this component line?","answer":"Overall depth is 76 mm; installation depth (behind the panel face) is 70 mm."},{"question":"What is 5SY6401-7's listed width (72 mm) on this component line?","answer":"Width is 72 mm, which corresponds to 4 modular width units on a standard DIN-rail panel."},{"question":"What compliance documentation does this brand provide for 5SY6401-7 (RoHS, REACH, UL, IEC)?","answer":"It is certified to IEC / EN 60898-1, IEC / EN 60947-2, and UL1077. Halogen-free and silicon-free. For RoHS/REACH declarations, the manufacturer provides compliance documentation upon request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY6401-7","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/5SY6401-7 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}}