{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SP3725-2KK02","brand":"Siemens","brandSlug":"siemens","productSlug":"5SP3725-2KK02","canonicalUrl":"https://aoctrl.com/siemens/5SP3725-2KK02","factsUrl":"https://aoctrl.com/api/mcp/products/5SP3725-2KK02","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SP3 miniature circuit breaker, 1-pole, 25 A, E-curve, 25 kA per EN 60898, busbar mount, 89.5 mm depth.","salesMarkdown":"The Siemens 5SP3725-2KK02 is a 1-pole miniature circuit breaker from the SENTRON 5SP3 series, rated 25 A with an E tripping characteristic and a 25 kA breaking capacity per EN 60898. It mounts on a 40 mm busbar system per DIN 43870 Part 2, making it the standard fit for residential and infrastructure meter panels where the supply cord enters at the lower section of the enclosure. The E-curve (tripping characteristic E) means it holds through moderate inrush — typical for transformer or capacitor loads — while still tripping fast on a hard fault. Both solid and stranded conductors from 2.5 mm² up to 50 mm² are accepted at the box terminal. The outgoing feeder uses a spring-loaded terminal — no tool needed for the load side, which speeds up panel wiring. Infeed is at the box terminal, so the line side lands on a fixed clamp. The breaker occupies 1.5 width units (roughly 27 mm) on the busbar. Depth is 89.5 mm overall; the enclosure itself is 76.3 mm deep, so the extra 13 mm is the terminal projection. Height is 151.3 mm. That footprint matches the standard 40 mm busbar spacing in DIN 43870 meter panels — no adapter needed. Protection class IP40 with conductors connected — fine for indoor panel environments but not for washdown. Overvoltage category IV (mains-level) with a 6 kV surge voltage rating. Vibration resistance is 2 g per IEC 60068-2-6 (20 cycles, 5 to 150 Hz); shock resistance is 30 g for at least 3 impacts of 11 ms duration. The switch position indicator shows OFF = green, ON = red. ## Locking and sealing The breaker is sealable. The locking device uses a locking slide with a lock, plus provision for an additional wire seal, cable ties, and Antilux. This is typical for utility-meter compartments where tamper evidence is required.","metaTitle":"Siemens 5SP3725-2KK02 SENTRON MCB, 1P 25A E-Curve, 25kA","metaDescription":"Siemens 5SP3725-2KK02 SENTRON miniature circuit breaker, 1-pole 25 A, tripping characteristic E, 25 kA breaking capacity per EN 60898. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"89.5 mm","Solid":"2.5 ... 50 mm²","title":"5SP3725-2KK02","Height":"151.3 mm","Maximum":"440 V","Minimum":"110 V","Sealable":"Yes","Stranded":"2.5 ... 50 mm²","Rated Value":"25 kA","description":"Main miniature circuit breaker (SHU), 1-pole, E25A L2, 230/400 V","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","Design of the locking device":"Locking slide with lock, additional wire seal, cable ties and Antilux","Current / at AC / rated value":"25 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,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/cbb0ab46cb1324066cc0407d83113d87.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=119042&mlfb=5SP3725-2KK02"},"ai":{"faq":[{"question":"Where can I buy 5SP3725-2KK02 and how do I get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What is 5SP3725-2KK02's listed depth?","answer":"The overall depth is 89.5 mm; the enclosure itself is 76.3 mm deep, with the remaining 13 mm being terminal projection."},{"question":"What conductor sizes does 5SP3725-2KK02 accept?","answer":"Both solid and stranded conductors from 2.5 mm² up to 50 mm² are accepted at the box terminal."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SP3725-2KK02","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/5SP3725-2KK02 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}}