{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY6404-7CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY6404-7CC","canonicalUrl":"https://aoctrl.com/siemens/5SY6404-7CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SY6404-7CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY6404-7CC, 4-pole miniature circuit breaker, 4 A rated, C tripping characteristic, 6 kA breaking capacity per EN 60898, 400 V AC.","salesMarkdown":"## 4 A, 4-pole C-curve MCB for panel distribution The Siemens 5SY6404-7CC is a SENTRON miniature circuit breaker rated 4 A at 400 V AC, 4-pole (4P), with a C tripping characteristic. Breaking capacity is 6 kA per EN 60898 (the standard for household and similar installations) and 5 kA per UL 1077 / CSA C22.2 No.235, so it clears fault currents up to those levels without welding contacts or rupturing the case. That dual rating covers both IEC and North American acceptance — useful for machinery shipped across jurisdictions. Conductor termination accepts solid or stranded wire from 0.75 mm² up to 35 mm², with a screw-terminal torque spec of 2.5 to 3.5 N·m. Ambient temperature range spans -25 °C to +55 °C operating, with storage from -40 °C to +75 °C; derate humidity per the spec: 95% at 55 °C, 55% at 70 °C, 35% at 75 °C. Width is 72 mm (4 width units at 18 mm each), height 90 mm, depth 76 mm with an installation depth of 70 mm. Any mounting position is allowed, and the supply cord can enter from any side. Touch protection is built into the terminals. Energy limiting class 3 means it restricts let-through energy during a fault — helps with downstream device coordination and reduces arc-flash stress on cables.","metaTitle":"Siemens 5SY6404-7CC SENTRON MCB, 4A 4P C-Curve, 6kA","metaDescription":"Siemens 5SY6404-7CC SENTRON miniature circuit breaker, 4 A, 4-pole, C characteristic, 6 kA IEC/5 kA UL. Current lifecycle stage. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["4-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Solid":"0.75 ... 35 mm²","Width":"72 mm","title":"5SY6404-7CC","Height":"90 mm","Sealable":"Yes","Stranded":"0.75 ... 35 mm²","Rated Value":"50/60 Hz","description":"Miniature circuit breaker 400 V 6kA, 4-pole, C, 4 A","Halogen-Free":"Yes","Silicon-Free":"Yes","Wertebereich":"-25 ... +55 °C","Mounting type":"Quick assembly system","Number of poles":"4","Type of voltage":"AC","lifecycle_stage":"current","Mounting position":"any","Installation depth":"70 mm","Product brand name":"SENTRON","Ambient temperature":"-40 ... +75 °C","Product designation":"Miniature circuit breaker","Protection class IP":"IP20, with connected conductors","at AC / rated value":"400 V","Overvoltage category":"III","Combined Terminal Top":"Yes","Energy limiting class":"3","Number of width units":"4","Number of poles / Note":"4P","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","Combined Terminal Bottom":"Yes","circuit-breaker / Design":"5SY6CC","Suitability for operation":"Mechanical engineering / industry","Current / at AC / rated value":"4 A","Tripping characteristic class":"C","at DC / rated value / maximum":"72 V","acc. to EN 60898 / rated value":"6 kA","Position / of power supply cord":"Any","Product feature / Touch protection":"Yes","Influence of the surrounding temperature":"max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C","at AC / acc. to UL 1077 and CSA C22.2 No.235":"5 kA","Tightening torque / with screw-type terminals":"2.5 ... 3.5 N·m","Product function / neutral conductor switching":"No","with multi-phase operation / at AC / rated value":"440 V","with single-phase operation / at AC / rated value":"440 V","Mechanical service life (switching cycles) / typical":"10 000","Tightening torque [lbf·in] / with screw-type terminals":"22 ... 31 lbf·in"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/3e9cc65e6f2bc892e9c99cb4fbfc8e87.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=146038&mlfb=5SY6404-7CC"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SY6404-7CC?","answer":"6 kA per EN 60898 and 5 kA per UL 1077 / CSA C22.2 No.235 at 400 V AC."},{"question":"What conductor sizes does 5SY6404-7CC accept?","answer":"Solid or stranded conductors from 0.75 mm² up to 35 mm², terminated with screw terminals torqued to 2.5–3.5 N·m."},{"question":"Where can I buy 5SY6404-7CC?","answer":"Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing confirmed at quote time."},{"question":"Does 5SY6404-7CC have UL or CSA approval?","answer":"Yes, it carries a 5 kA rating per UL 1077 and CSA C22.2 No.235, along with IEC 60898 compliance."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY6404-7CC","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/5SY6404-7CC 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}}