{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1353-1KK25","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1353-1KK25","canonicalUrl":"https://aoctrl.com/siemens/5SU1353-1KK25","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1353-1KK25","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON series, RCBO, order code 5SU1353-1KK25, 25 A rated at 30 °C, C-curve trip characteristic, 1P+N, 4.5 kA per EN 60898, 15 kA per IEC 60947-2.","salesMarkdown":"It protects a single-phase final subcircuit (1P+N, neutral switched) against overload, short-circuit, and earth leakage. The C-curve trip characteristic means it holds 5–10× rated current momentarily, so it's the standard choice for motor-starter and general-purpose loads that draw a moderate inrush without nuisance tripping. ## Thermal derating matters here At 40 °C it derates to 23.5 A, at 50 °C to 21.75 A, and at 70 °C to 18.25 A. ## Breaking capacity — two standards, two numbers Rated short-circuit breaking capacity is 4.5 kA per EN 60898 (the household-standard test) and 15 kA per IEC 60947-2 (the industrial-standard test). The higher IEC figure applies when the device is installed in an industrial distribution board with a higher prospective fault current — that's the number the panel designer needs for the SCCR label. ## Integration notes Two modular-width units (36 mm) snap onto standard DIN rail. Depth is 77 mm, installation depth 70 mm — check gland-plate clearance before wiring. IP20 rating applies only with the distribution board closed and conductors connected; open-door work requires a lockout.","metaTitle":"Siemens SENTRON 5SU1353-1KK25 RCBO, 25A C-curve, 1P+N, 4.5kA","metaDescription":"Siemens SENTRON 5SU1353-1KK25 RCBO, 25A rated at 30°C, C-curve, 1P+N, 4.5kA per EN 60898, 15kA per IEC 60947-2. Current lifecycle. Sourced to order. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"77 mm","Width":"36 mm","title":"5SU1353-1KK25","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","description":"RCBO, 4.5 kA, 1P+N, Type AC, 30 mA, C-Char, In: 25 A, Un AC: 230 V","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"1P+N","Number Of Poles":"2","lifecycle_stage":"current","Mounting Position":"any","at AC rated value":"230/240 V","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"2","Operating Frequency":"50 Hz","Product Designation":"RCBO","protection class IP":"IP20, if the distribution board is installed, with connected conductors","Overvoltage Category":"III","Design Of The Product":"Instantaneous","Weight With Packaging":"281 g","at 30 °C rated value":"25 A","at 40 °C rated value":"23.5 A","at 45 °C rated value":"22.75 A","at 50 °C rated value":"21.75 A","at 55 °C rated value":"20.25 A","at 60 °C rated value":"20.25 A","at 65 °C rated value":"19.25 A","at 70 °C rated value":"18.25 A","Energy Limitation Class":"3","For Testing Equipment Minimum":"195 V","Number Of Modular Width Units":"2","Position Of Power Supply Cord":"Either top or bottom","Tripping Characteristic Class":"C","Number Of Poles With Protection":"1","according to EN 60898 rated value":"4.5 kA","insulation voltage (Ui) rated value":"264 V","Supply Voltage Frequency Rated Value":"50 Hz","Surge Voltage Resistance Rated Value":"4 000 V","according to IEC 60947-2 rated value":"15 kA","Surge Current Resistance At (8/20) μS":"1 kA","Influence Of The Surrounding Temperature":"Max. 95% humidity","Type Of Voltage Of The Operating Voltage":"AC","Mechanical Service Life (Operating Cycles) Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$30.48","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/40ce1d6ec338ce832dda1a730eca5e1b.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=483375&mlfb=5SU1353-1KK25"},"ai":{"faq":[{"question":"Where can I buy 5SU1353-1KK25 and how do I get a price?","answer":"This part is sourced to order against an RFQ through independent distribution. Submit a quote request; availability and current pricing are confirmed at quote time."},{"question":"Will 5SU1353-1KK25 drop into a panel that was specified around 5SU9354-7KK16 without rewiring?","answer":"Both are 2-module-wide SENTRON RCBOs with the same DIN-rail footprint and 1P+N pole configuration, so mechanical fit is identical. The key difference is the current rating: 5SU1353-1KK25 is 25 A (C-curve), while 5SU9354-7KK16 is a different rating — verify the load before swapping."},{"question":"What compliance documentation does this brand provide for 5SU1353-1KK25?","answer":"The part is halogen-free and silicon-free. It carries ratings per EN 60898 and IEC 60947-2, and is designed for overvoltage category III, pollution degree 2. Specific RoHS/REACH/UL declarations are available from the manufacturer on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1353-1KK25","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/5SU1353-1KK25 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}}