{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SP3780-1","brand":"Siemens","brandSlug":"siemens","productSlug":"5SP3780-1","canonicalUrl":"https://aoctrl.com/siemens/5SP3780-1","factsUrl":"https://aoctrl.com/api/mcp/products/5SP3780-1","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON selective main miniature circuit breaker, 3-pole, 80 A, 25 kA breaking capacity at 400 V AC, Class E tripping characteristic, 6 MWU, IP20.","salesMarkdown":"## Selective main MCB for infrastructure panels The Siemens SENTRON 5SP3780-1 is a selective main miniature circuit breaker (SHU) for residential and infrastructure distribution boards. ## Class E selectivity and breaking capacity Class E tripping characteristic means this breaker delays its trip under short-circuit conditions to let downstream MCBs clear first — essential for a main disconnector feeding sub-distribution. The 25 kA rated short-circuit capacity at 400 V AC (EN 60898) is well above the 4.5–10 kA range of standard SENTRON branch MCBs like the 5SL3340-7CC or 5SL4363-7, so it holds up under a panel-level fault without cascading upstream. Overvoltage category IV and pollution degree 3 suit it for utility-side installation where surge and contamination risk is higher than a clean indoor sub-panel. Vibration resistance per IEC 60068-2-6 at 2 g over 5–150 Hz and shock resistance to 30 g (3 impacts, 11 ms duration) confirm it holds calibration under transport and seismic events. The 20 000 mechanical switching cycles typical service life is standard for a main breaker not cycled daily. Occupies 6 modular width units on 35 mm DIN rail. Saddle terminals accept copper conductors; the pre-assembled adapter and locking caps reduce installation steps. Depth of 92 mm fits standard enclosures.","metaTitle":"Siemens 5SP3780-1 SENTRON Selective MCB, 80 A, 25 kA, Class","metaDescription":"Siemens SENTRON 5SP3780-1 selective miniature circuit breaker, 3-pole, 80 A, 25 kA breaking capacity at 400 V AC, Class E tripping characteristic. Available to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Maximum":"70 °C","Minimum":"-40 °C","Sealable":"Yes","Rated Value":"25 kA","Design Of Pole":"3P","Number Of Poles":"3","lifecycle_stage":"current","Fastening Method":"standard rail","Saddle Terminals":"Yes","Shock Resistance":"30 g, at least 3 impacts, impact duration 11 ms","Product Brand Name":"SENTRON","Degree Of Pollution":"3","Product Designation":"Miniature circuit breaker","at AC / rated value":"80 A","protection class IP":"IP20, with connected conductors","Overvoltage Category":"IV","Design Of The Product":"Main miniature circuit breaker","according to EN 61346-2":"F","Depth / Of The Enclosure":"92 mm","Fastening Method / Other":"with accessories on 35-mm DIN rail or busbar or screw mounting","according to IEC 81346-2":"F","Suitability For Operation":"Residential buildings/infrastructure","Number Of Modular Width Units":"6","Tripping Characteristic Class":"E","Position / Of Power Supply Cord":"Any","according to EN 60898 / rated value":"25 kA","supply voltage / at AC / rated value":"400 V","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 (Switching Cycles) / Typical":"20 000"}},"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=195029&mlfb=5SP3780-1","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SP3780-1/alternatives.json"},"ai":{"faq":[{"question":"Will 5SP3780-1 drop into a panel specified for 5SL3340-7CC?","answer":"No — the 5SP3780-1 is a selective main breaker (Class E, 80 A, 25 kA, 6 MWU) while the 5SL3340-7CC is a standard branch MCB (Class C, 40 A, 4.5 kA, 3 MWU). The 5SP3780-1 is physically wider and has a different tripping characteristic; it cannot be swapped without rewiring and re-evaluating the panel's fault discrimination scheme."},{"question":"What is the maximum ambient temperature for 5SP3780-1?","answer":"The maximum operating ambient temperature is 70 °C, with a minimum of -40 °C."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SP3780-1","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/5SP3780-1 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}}