{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY7402-7CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY7402-7CC","canonicalUrl":"https://aoctrl.com/siemens/5SY7402-7CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SY7402-7CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY7402-7CC, 4-pole miniature circuit breaker, 2 A rated current, C tripping characteristic, 50 kA breaking capacity per IEC 60947-2, 400 V AC.","salesMarkdown":"The Siemens 5SY7402-7CC is a 4-pole miniature circuit breaker from the SENTRON 5SY7CC design series, rated 2 A at 400 V AC with a C tripping characteristic. ## Wire range and terminal details for the panel builder Combined terminals at both top and bottom simplify busbar or daisy-chain wiring. The breaker is sealable, which helps if the panel requires tamper-evident metering or lockout-tagout compliance. ## Breaking capacity and standards coverage For UL 1077 and CSA C22.2 No. 235 (North American supplementary protector recognition), the rating is 5 kA. If your panel requires UL 489 listing (branch circuit protection), this part does not carry it; it's a supplementary protector under UL 1077. The 72 V DC maximum rating means it can also serve in DC control circuits up to that voltage, though the DC breaking capacity is not separately stated here.","metaTitle":"Siemens 5SY7402-7CC SENTRON MCB, 4P, 2A, C-Curve, 50kA IEC","metaDescription":"Siemens 5SY7402-7CC SENTRON 4-pole miniature circuit breaker, 2A C-curve, 50 kA IEC 60947-2, 400 V AC. 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":"5SY7402-7CC","Height":"90 mm","Sealable":"Yes","Stranded":"0.75 ... 35 mm²","Rated Value":"50/60 Hz","description":"Miniature circuit breaker 400 V 15kA, 4-pole, C, 2A","Halogen-Free":"Yes","Silicon-Free":"Yes","Mounting type":"Quick assembly system","During Storage":"-40 ... +75 °C","Number of poles":"4","Type of voltage":"AC","lifecycle_stage":"current","Mounting position":"any","Installation depth":"70 mm","Product brand name":"SENTRON","Ambient temperature":"-25 ... +55 °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","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":"5SY7CC","Suitability for operation":"Mechanical engineering / industry","Current / at AC / rated value":"2 A","Tripping characteristic class":"C","at DC / rated value / maximum":"72 V","Position / of power supply cord":"Any","acc. to IEC 60947-2 / rated value":"50 kA","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/e35a1851b4384482481a22cad910bc58.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=472563&mlfb=5SY7402-7CC"},"ai":{"faq":[{"question":"Where can I buy 5SY7402-7CC and how do I get a price?","answer":"The part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current pricing and availability — no stock or lead-time figures are published here."},{"question":"What is the closest functional second-source for 5SY7402-7CC?","answer":"The 5SY6602-8 is a 4-pole, 2 A, C-curve MCB from the same SENTRON family but from an earlier 5SY6 series. It shares the same pole count, current rating, and tripping characteristic, but the 5SY7402-7CC offers a higher 50 kA IEC breaking capacity versus the 5SY6 series' typical 25 kA. Verify the required SCCR before substituting — the 5SY6602-8 may not coordinate at the same fault level."},{"question":"What is 5SY7402-7CC's listed depth?","answer":"The overall depth is 76 mm, with an installation depth of 70 mm (the portion that sits inside the panel behind the DIN rail)."},{"question":"What is 5SY7402-7CC's listed solid wire range?","answer":"Solid conductors from 0.75 mm² up to 35 mm² are accepted at the terminals."},{"question":"Will 5SY7402-7CC drop into a panel specified around 5SY6602-8 without rewiring?","answer":"Both are 4-pole, 72 mm wide (4 width units) DIN-rail MCBs with the same terminal wire range (0.75–35 mm² solid/stranded), so the physical footprint and wiring connections are identical. The main difference is the higher 50 kA IEC breaking capacity on the 5SY7402-7CC versus the 5SY6602-8's typical 25 kA — no rewiring needed, but verify the fault level coordination study still holds."},{"question":"What compliance documentation does Siemens provide for 5SY7402-7CC?","answer":"The breaker carries IEC 60947-2 certification (50 kA rating), UL 1077 and CSA C22.2 No. 235 supplementary protector recognition (5 kA), and is halogen-free and silicon-free. Standard Siemens documentation includes the declaration of conformity (CE/UKCA), RoHS and REACH compliance statements, and the product datasheet. Contact your Siemens channel partner or request the documentation package with your RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY7402-7CC","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/5SY7402-7CC 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}}