{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SN6302-7CP","brand":"Siemens","brandSlug":"siemens","productSlug":"5SN6302-7CP","canonicalUrl":"https://aoctrl.com/siemens/5SN6302-7CP","factsUrl":"https://aoctrl.com/api/mcp/products/5SN6302-7CP","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SN series, 3-pole miniature circuit breaker, C-curve, 400 V AC, 6 kA (EN 60898) / 30 kA (IEC 60947-2), 3 modular width units.","salesMarkdown":"The Siemens 5SN6302-7CP is a 3-pole miniature circuit breaker (MCB) from the SENTRON 5SN series, in a C-curve tripping characteristic. It snaps onto a standard DIN rail and occupies 3 modular width units (54 mm wide), with a depth of 76 mm and an installation depth of 70 mm — a common footprint that drops into most distribution boards and sub-panels without re-drilling the gland plate. This breaker carries a dual breaking-capacity rating: 6 kA according to EN 60898 for residential and light commercial duty, and 30 kA according to IEC 60947-2 for industrial applications. ## Voltage and temperature range Rated for 400 V AC at 50 Hz, with a maximum operating voltage of 440 V AC in multi-phase or single-phase operation. DC side is rated to 72 V maximum. The operating temperature span is -40 °C to 75 °C, so it works in unheated enclosures or hot machine cabinets without derating for ambient — though you still need to watch the thermal curve above 40 °C for continuous load. ## Wiring and mechanical life Accepts solid conductors up to 35 mm², which covers most panel feed-throughs and branch circuits. Power loss per pole is 1.2 W at rated current in hot state; three poles together add about 3.6 W of heat inside the enclosure, so factor that into your thermal budget if the panel is tightly packed.","metaTitle":"Siemens 5SN6302-7CP MCB, 3-Pole C-Curve, 6kA/30kA, 400V AC","metaDescription":"Siemens 5SN6302-7CP 3-pole miniature circuit breaker, C-curve, 6kA (EN 60898) / 30kA (IEC 60947-2) breaking capacity, 400V AC. Active production. Sourced to order. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Depth":"76 mm","Width":"54 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Number Of Poles":"3","lifecycle_stage":"current","Installation Depth":"70 mm","at DC rated value maximum":"72 V","Number Of Modular Width Units":"3","supply voltage at AC rated value":"400 V","according to EN 60898 rated value":"6 kA","Supply Voltage Frequency Rated Value":"50 Hz","according to IEC 60947-2 rated value":"30 kA","with multi-phase operation at AC maximum":"440 V","with multi-phase operation at AC rated value":"440 V","with single-phase operation at AC rated value":"440 V","Connectable Conductor Cross-Section Solid Maximum":"35 mm²","Mechanical Service Life (Operating Cycles) Typical":"10 000","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":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1647271&mlfb=5SN6302-7CP","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SN6302-7CP/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SN6302-7CP and how do I get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Current pricing and availability are confirmed at quote time — submit an RFQ through the storefront to get a firm quote."},{"question":"Will 5SN6302-7CP drop into a panel specified around 5SY4304-7CV without rewiring?","answer":"Yes — both breakers share the same 3-pole, 3-module-width footprint (54 mm wide, 76 mm deep, 70 mm installation depth) and mount on the same DIN rail. The 5SN6302-7CP has a higher IEC 60947-2 breaking capacity (30 kA vs 15 kA), so it's a drop-in upgrade for the same physical space, but verify the terminal conductor range matches your existing wiring (both accept up to 35 mm² solid)."},{"question":"What is 5SN6302-7CP's breaking capacity?","answer":"It is rated 6 kA according to EN 60898 and 30 kA according to IEC 60947-2, both at 400 V AC."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SN6302-7CP","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/5SN6302-7CP 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}}