{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY7304-8CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY7304-8CC","canonicalUrl":"https://aoctrl.com/siemens/5SY7304-8CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SY7304-8CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY7304-8CC, 3-pole miniature circuit breaker, D tripping characteristic, 4 A rated current, 30 kA breaking capacity at 400 V AC per IEC 60947-2.","salesMarkdown":"It's built for industrial control panels and machinery where you need a high inrush tolerance — D-curve holds through motor-start and transformer-magnetizing surges that'd trip a B or C curve too early. Rated breaking capacity hits 30 kA at 400 V AC per IEC 60947-2, and 5 kA per UL 1077 and CSA C22.2 No. 235, so it covers both IEC and North American fault-current specs in one package. ## Where it fits — panel and environment Overall depth is 76 mm, so it clears a standard 80 mm deep enclosure backplate. Mount it in any position; the breaker doesn't care if it's vertical, horizontal, or upside down. The D-curve trips magnetically between 10 and 20 times the rated current (40–80 A for this 4 A unit). That's what you want for motor feeders, solenoid banks, or transformer primaries where the inrush lasts a few cycles and a standard C-curve would nuisance-trip. Sealable terminals allow the panel builder to lock the cover screws after commissioning, preventing unauthorized access to the live connections. Touch protection is built in per the product feature set.","metaTitle":"Siemens 5SY7304-8CC SENTRON MCB, 3P D 4A 30kA","metaDescription":"Siemens 5SY7304-8CC SENTRON miniature circuit breaker, 3-pole, D-curve, 4 A, 30 kA IEC breaking capacity. Active production. Sourced to order. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["3-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"54 mm","title":"5SY7304-8CC","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Rated Value":"50/60 Hz","description":"Miniature circuit breaker 400 V 15kA, 3-pole, D, 4 A","Halogen-Free":"Yes","Silicon-Free":"Yes","Mounting type":"Quick assembly system","Number of poles":"3","Type of voltage":"AC","lifecycle_stage":"current","Mounting position":"any","Installation depth":"70 mm","Product brand name":"SENTRON","Degree of pollution":"3","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":"3","Number of poles / Note":"3P","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","Tripping characteristic class":"D","at DC / rated value / maximum":"72 V","Position / of power supply cord":"Any","acc. to IEC 60947-2 / rated value":"30 kA","Product feature / Touch protection":"Yes","Operating current / at AC / rated value":"4 A","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","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"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/e7120e508fe7d33c033cc71b257cb215.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=372755&mlfb=5SY7304-8CC"},"ai":{"faq":[{"question":"Who supplies 5SY7304-8CC and how is it quoted for volume purchases?","answer":"Sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for your volume requirement."},{"question":"What is 5SY7304-8CC's listed depth (76 mm) on this component line?","answer":"The overall depth is 76 mm, with an installation depth of 70 mm behind the panel face."},{"question":"What is 5SY7304-8CC's listed width (54 mm) on this component line?","answer":"The width is 54 mm, which corresponds to 3 standard DIN-rail width units (each unit is 18 mm)."},{"question":"What compliance documentation does this brand provide for 5SY7304-8CC (RoHS, REACH, UL, IEC)?","answer":"The breaker carries IEC 60947-2 certification for 30 kA breaking capacity, plus UL 1077 and CSA C22.2 No. 235 ratings at 5 kA. It is halogen-free and silicon-free. Specific RoHS/REACH declarations are available from the manufacturer upon request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY7304-8CC","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/5SY7304-8CC 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}}