{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SN6120-7CP","brand":"Siemens","brandSlug":"siemens","productSlug":"5SN6120-7CP","canonicalUrl":"https://aoctrl.com/siemens/5SN6120-7CP","factsUrl":"https://aoctrl.com/api/mcp/products/5SN6120-7CP","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SN series MCB, 1-pole, tripping characteristic C, 6 kA (EN 60898) / 15 kA (IEC 60947-2), 400 V AC, 72 V DC, 18 mm wide, 76 mm deep.","salesMarkdown":"## Siemens 5SN6120-7CP — 1-pole MCB, 6 kA / 15 kA, C-curve The Siemens 5SN6120-7CP is a 1-pole miniature circuit breaker from the SENTRON 5SN series, with a C tripping characteristic. It carries a 6 kA breaking capacity per EN 60898 and a 15 kA rating per IEC 60947-2 — the higher IEC figure is the one that governs SCCR coordination in industrial panels where the upstream transformer can deliver more fault current. Rated 400 V AC at 50 Hz for multi-phase operation, with a maximum of 440 V AC; DC rating tops out at 72 V. The 6 kA (EN 60898) figure is the standard for residential and light commercial distribution boards; the 15 kA (IEC 60947-2) rating qualifies it for industrial control panels where fault levels are higher. The 18 mm width and 70 mm installation depth mean it occupies one modular unit on a DIN rail — same footprint as the 5SY and 5SL series, so it drops into an existing panel without busbar or gland-plate rework. The 35 mm² solid conductor capacity handles the larger feed conductors typical of a sub-distribution board. ## Temperature range and environment Rated for -40 °C to +75 °C ambient — wide enough for unheated electrical rooms or outdoor enclosures in temperate climates. The 1.7 W power loss per pole at rated current in hot operating state is modest; no forced cooling needed in a standard IP20 distribution board.","metaTitle":"Siemens 5SN6120-7CP MCB, 1-Pole, 6 kA EN 60898, 15 kA IEC 60","metaDescription":"Siemens 5SN6120-7CP 1-pole MCB, 6 kA per EN 60898, 15 kA per IEC 60947-2, 400 V AC, 72 V DC, 18 mm wide. Active production. Quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"18 mm","title":"5SN6120-7CP","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","description":"MCB 5SN","Number Of Poles":"1","lifecycle_stage":"current","Installation Depth":"70 mm","at DC rated value maximum":"72 V","Number Of Modular Width Units":"1","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":"15 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":"1.7 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/dc7d660f70025299fe46aaade1a9d0d4.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1647231&mlfb=5SN6120-7CP"},"ai":{"faq":[{"question":"Who supplies 5SN6120-7CP and how is it quoted for volume purchases?","answer":"This part is supplied through independent distribution channels. Volume pricing and lead time are confirmed at quote time against an RFQ — no stock count or price figure is published here."},{"question":"Will 5SN6120-7CP drop into a panel that was specified around 5SY4116-7CV without rewiring?","answer":"Yes. Both parts share the same 18 mm width, 76 mm depth, 70 mm installation depth, and 1-pole form factor, so the 5SN6120-7CP fits the same DIN-rail slot and busbar arrangement without rewiring."},{"question":"What is 5SN6120-7CP's listed depth?","answer":"76 mm overall depth, with a 70 mm installation depth behind the panel face."},{"question":"What is 5SN6120-7CP's listed width?","answer":"18 mm, which is one modular width unit on a standard DIN rail."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SN6120-7CP","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/5SN6120-7CP 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}}