{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY3002-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY3002-7","canonicalUrl":"https://aoctrl.com/siemens/5SY3002-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SY3002-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY3002-7 miniature circuit breaker, 1P+N, C-curve 2 A, 4.5 kA breaking capacity, 230 V AC, 1 MW width, IP20.","salesMarkdown":"## What it is and what the ratings mean The Siemens SENTRON 5SY3002-7 is a 1P+N miniature circuit breaker rated 2 A with a C tripping characteristic and a 4.5 kA breaking capacity per EN 60898. The C-curve means it trips between 5 and 10 times rated current — suited for moderate inrush loads like small motors, lighting banks, and transformer primaries where you need short-circuit protection without nuisance tripping on startup. The 4.5 kA interrupting rating at 230 V AC tells you it can safely clear a fault up to that level on the secondary side of a residential or light commercial distribution board; anything above that and you need an upstream limiting device. Rated current derates with ambient temperature: 2 A at 30 °C, 1.92 A at 40 °C, 1.88 A at 45 °C. If the breaker sits in a warm enclosure or next to other heat-generating devices, factor the derating into the load calculation — the 40 °C figure is the one to use for a typical closed panel. ## Panel fit and deployment Snaps onto standard DIN rail (EN 60715), occupies one modular width (18 mm). Depth is 76 mm, installation depth 70 mm — fits standard distribution boards and sub-panels without bottoming out on the gland plate. Mounting position is any, so it works in vertical or horizontal busbar arrangements. IP20 with connected conductors; fine for enclosed distribution boards, not for wet or dusty environments without an outer enclosure. Touch protection is built in (finger-safe terminals per the spec), and the breaker is sealable — useful for utility metering or rental applications where tamper evidence matters. Halogen-free and silicon-free construction matters if the panel serves sensitive environments like clean rooms or medical areas where outgassing during a fault could contaminate the space.","metaTitle":"Siemens 5SY3002-7 SENTRON MCB, 2 A C-Curve, 1P+N, 4.5 kA","metaDescription":"Siemens 5SY3002-7 SENTRON miniature circuit breaker, 2 A rated, C tripping characteristic, 1P+N, 4.5 kA breaking capacity per EN 60898. Current production, sourced to order. Reques","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","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Halogen-Free":"Yes","Silicon-Free":"Yes","lifecycle_stage":"current","Fastening Method":"standard rail","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"2","Product Designation":"Miniature circuit breaker","acc. to IEC 81346-2":"F","at AC / rated value":"2 A","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Combined Terminal Top":"No","Design Of The Product":"Miniature circuit breaker compact","Energy Limitation Class":"3","at 30 °C / rated value":"2 A","at 40 °C / rated value":"1.92 A","at 45 °C / rated value":"1.88 A","Combined Terminal Bottom":"No","Suitability For Operation":"Residential buildings/infrastructure","Number Of Modular Width Units":"1","Tripping Characteristic Class":"C","acc. to EN 60898 / rated value":"4.5 kA","Position / Of Power Supply Cord":"Any","Product Feature / Touch Protection":"Yes","insulation voltage / at AC / rated value":"250 V","vibration resistance / acc. to IEC 60068-2-6":"Yes","with single-phase operation / at AC / maximum":"250 V","Product Function / Neutral Conductor Switching":"Yes","Mechanical Service Life (Switching Cycles) / Typical":"4 000"}},"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=291115&mlfb=5SY3002-7","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY3002-7/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SY3002-7?","answer":"4.5 kA per EN 60898 at 230 V AC. That is the standard interrupting rating for this class of 1P+N MCB in residential and light commercial distribution."},{"question":"Will 5SY3002-7 drop into a panel specified around 5SY3025-7KL?","answer":"Yes — same 18 mm width, same 76 mm depth, same DIN-rail mounting, same SENTRON platform. The only difference is the current rating: 2 A here versus 25 A on the 5SY3025-7KL. No rewiring needed if the circuit load is within the 2 A rating."},{"question":"Where can I buy 5SY3002-7 and how is it quoted?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for your volume and delivery window."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY3002-7","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/5SY3002-7 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}}