{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SP3350-3","brand":"Siemens","brandSlug":"siemens","productSlug":"5SP3350-3","canonicalUrl":"https://aoctrl.com/siemens/5SP3350-3","factsUrl":"https://aoctrl.com/api/mcp/products/5SP3350-3","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SP3350-3, 3-pole main miniature circuit breaker, E characteristic, 400 V AC, 25 kA breaking capacity, DIN rail mount, IP40.","salesMarkdown":"The 5SP3350-3 is a 3-pole main miniature circuit breaker from the Siemens SENTRON family, rated 400 V AC at 50 Hz with a 25 kA breaking capacity per EN 60898. This makes it a fit for main feeders where you need discrimination downstream. At 4.5 modular width units (roughly 81 mm), it occupies a bit more than a standard 3-pole MCB — plan panel space accordingly. The integrated locking slide accepts a padlock, wire seal, or cable tie, so it can be locked in the OFF position for LOTO procedures. Saddle terminals are standard; no need for pin ferrules on stranded conductors. Rated IP40 with conductors connected, so it's suited for enclosed distribution boards. Shock resistance tested at 30 g, 11 ms half-sine, 3 impacts per axis; vibration tested per IEC 60068-2-6 at 2 g, 5–150 Hz sweep. That's enough for transport and installation in commercial buildings, less so for direct mounting on heavy machinery — but in a distribution board, it holds. Mechanical service life is 20,000 operating cycles typical — more than enough for a main breaker that cycles maybe a few times a year.","metaTitle":"Siemens 5SP3350-3 SENTRON MCB, 3P, E-Char, 400V, 25kA","metaDescription":"Siemens 5SP3350-3 SENTRON 3-pole miniature circuit breaker, E characteristic, 400 V AC, 25 kA breaking capacity. Active production, sourced to order. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["3-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76.3 mm","title":"5SP3350-3","Height":"128 mm","Maximum":"70 °C","Minimum":"-40 °C","Sealable":"Yes","Rated Value":"25 kA","description":"Main miniature circuit breaker (SHU), 3-pole, E 50, 400V","Solid Maximum":"50 mm²","Solid Minimum":"2.5 mm²","Design Of Pole":"3P","Number Of Poles":"3","lifecycle_stage":"current","Fastening Method":"DIN rail","Saddle Terminals":"Yes","Shock Resistance":"30 g, at least 3 impacts, impact duration 11 ms","Stranded Maximum":"50 mm²","Stranded Minimum":"2.5 mm²","Product Brand Name":"SENTRON","Degree Of Pollution":"3","Product Designation":"Miniature circuit breaker","protection class IP":"IP40, with connected conductors","Overvoltage Category":"IV","Design Of The Product":"Main miniature circuit breaker","Depth Of The Enclosure":"76.3 mm","Fastening Method Other":"on DIN rail 35 mm acc. to EN 60715","Infeed At Box Terminal":"Yes","Suitability For Operation":"Residential buildings/infrastructure","Design Of The Locking Device":"Integrated locking slide, lockable by means of a lock, wire seal and cable ties","Number Of Modular Width Units":"4.5","Position Of Power Supply Cord":"Any","Tripping Characteristic Class":"E","supply voltage at AC rated value":"400 V","according to EN 60898 rated value":"25 kA","insulation voltage (Ui) rated value":"690 V","Supply Voltage Frequency Rated Value":"50 Hz","Surge Voltage Resistance Rated Value":"6 kV","Display Version For Switch Position Indicator":"OFF = green, ON = red","vibration resistance according to IEC 60068-2-6":"2 g, 20 frequency cycles 5 to 150 to 15 Hz","Mechanical Service Life (Operating Cycles) Typical":"20 000","power loss [W] for rated value of the current at AC in hot operating state per pole":"8 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/42cfd8aef8eb26866f20aa055d317083.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=259834&mlfb=5SP3350-3"},"ai":{"faq":[{"question":"What are the key ratings of 5SP3350-3?","answer":"It is a 3-pole miniature circuit breaker with E characteristic, rated 400 V AC, 50 Hz, with a 25 kA breaking capacity per EN 60898. Insulation voltage is 690 V, surge voltage resistance 6 kV, overvoltage category IV."},{"question":"What is 5SP3350-3's depth and height?","answer":"Depth is 76.3 mm, height is 128 mm. These are the dimensions of the device itself, not including the DIN rail or terminal projections."},{"question":"Where can I buy 5SP3350-3 and get current pricing?","answer":"We source this part to order against an RFQ through independent distribution. Submit a request for quote and we'll confirm availability and current pricing at that time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SP3350-3","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/5SP3350-3 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}}