{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SP3735-2XX01","brand":"Siemens","brandSlug":"siemens","productSlug":"5SP3735-2XX01","canonicalUrl":"https://aoctrl.com/siemens/5SP3735-2XX01","factsUrl":"https://aoctrl.com/api/mcp/products/5SP3735-2XX01","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SP3 main miniature circuit breaker, 1-pole, 35 A, E tripping characteristic, 25 kA breaking capacity per EN 60898, solid/stranded 2.5–50 mm², busbar mount.","salesMarkdown":"It's designed for residential and infrastructure metering panels — specifically as the main breaker ahead of the meter, installed on a 40-mm busbar system per DIN 43870 Part 2. The E curve means it handles moderate inrush without nuisance tripping, typical for general lighting and socket circuits in European domestic boards. Breaking capacity is 25 kA at 230/400 V per EN 60898 — that's the standard for residential main breakers in most of Europe, so it coordinates with the utility-side fault level without needing an upstream fuse. The 25 kA rating also appears as the rated value per EN 60898, confirming it's tested to that standard. Overvoltage category IV means it's rated for the utility connection point, not just sub-distribution. Wire range covers 2.5 to 50 mm² solid or stranded — that's enough for a 35 A feed with some headroom on the line side. The box terminal infeed and spring-loaded outgoing terminal make wiring straightforward in a meter cabinet. Mechanical life is 20 000 switching cycles typical — fine for a main breaker that sees infrequent operation. Shock resistance is 30 g, 11 ms duration, and vibration resistance is 2 g per IEC 60068-2-6, so it holds up in transport and light industrial environments. Mounts on a 40-mm busbar system per DIN 43870 Part 2 — that's the standard for European meter panels. The 1.5 width units (about 27 mm) fit in a single module space. Depth is 76.3 mm, which fits standard meter cabinets. The switch position indicator shows OFF = green, ON = red, a quick visual check during commissioning or troubleshooting.","metaTitle":"Siemens 5SP3735-2XX01 SENTRON MCB, 1P, 35 A, E-Char, 25 kA","metaDescription":"Siemens SENTRON 5SP3735-2XX01 miniature circuit breaker, 1-pole, 35 A, E tripping characteristic, 25 kA breaking capacity per EN 60898. Solid/stranded 2.5–50 mm². Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Solid":"2.5 ... 50 mm²","Maximum":"440 V","Minimum":"110 V","Sealable":"Yes","Stranded":"2.5 ... 50 mm²","Rated Value":"25 kA","Mounting type":"Busbar","During Storage":"-40 ... +70 °C","Number of poles":"1","lifecycle_stage":"current","Shock resistance":"30 g, at least 3 impacts, impact duration 11 ms","Product brand name":"SENTRON","Ambient temperature":"-25 ... +55 °C","Product designation":"Miniature circuit breaker","Protection class IP":"IP40, with connected conductors","Overvoltage category":"IV","Design of the product":"Main miniature circuit breaker","Number of width units":"1.5","Infeed at box terminal":"Yes","Number of poles / Note":"1P","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","Depth / of the enclosure":"76.3 mm","circuit-breaker / Design":"5SP3","Suitability for operation":"Residential buildings/infrastructure","Current / at AC / rated value":"35 A","Tripping characteristic class":"E","acc. to EN 60898 / rated value":"25 kA","Position / of power supply cord":"Stipulated by installation in the lower section of the meter panel","Insulation voltage / rated value":"690 V","Supply voltage / at AC / rated value":"230 V","Supply voltage frequency / rated value":"50 Hz","Surge voltage resistance / rated value":"6 kV","Mounting type / other installation / Note":"On 40-mm busbar system in compliance with DIN 43870 Part 2","Outgoing Feeder Via Spring-Loaded Terminal":"Yes","Vibration resistance / acc. to IEC 60068-2-6":"2 g, 20 frequency cycles 5 to 150 to 15 Hz","Display version / for switch position indicator":"OFF = green, ON = red","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=253948&mlfb=5SP3735-2XX01","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SP3735-2XX01/alternatives.json"},"ai":{"faq":[{"question":"What wire sizes does 5SP3735-2XX01 accept?","answer":"Solid and stranded conductors from 2.5 to 50 mm²."},{"question":"What is the breaking capacity of 5SP3735-2XX01?","answer":"25 kA rated value per EN 60898 at 230/400 V."},{"question":"Where can I buy 5SP3735-2XX01 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."},{"question":"Will 5SP3735-2XX01 drop into a panel specified for 5SL3120-6MB?","answer":"No — the 5SP3735-2XX01 is a main breaker for busbar mounting in meter panels, while the 5SL3120-6MB is a standard DIN-rail MCB. They are not footprint-compatible without rewiring."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SP3735-2XX01","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/5SP3735-2XX01 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}}