{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1353-0KV25","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1353-0KV25","canonicalUrl":"https://aoctrl.com/siemens/5SU1353-0KV25","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1353-0KV25","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SU1353-0KV25 FI/LS-PROTECTOR, Type AC (WS), 30mA, 4.5kA, 1+N-pole, B 25A.","salesMarkdown":"The Siemens 5SU1353-0KV25 is a combination residual-current device and miniature circuit breaker (RCBO) in a single 1+N-pole module. It integrates Type AC residual-current protection at 30 mA sensitivity with a B-curve overcurrent trip set at 25 A, all rated for a 4.5 kA short-circuit capacity. The 70 mm depth fits standard Siemens distribution boards and consumer units. The 30 mA residual sensitivity (IΔn) is the standard threshold for personnel protection against direct contact in TN and TT systems — it clears a ground fault before the let-through energy reaches a dangerous level. ## Integration note The 1+N-pole format occupies a single modular width on a DIN rail, with the neutral switched and protected. The 70 mm depth is consistent with Siemens 5SU1 series RCBOs, so it aligns with standard enclosure gland-plate clearances. Wire termination follows the terminal markings on the housing; no special tooling beyond a standard screwdriver is required.","metaTitle":"Siemens 5SU1353-0KV25 RCBO, Type AC 30mA, B 25A, 1+N","metaDescription":"Siemens 5SU1353-0KV25 FI/LS protector, Type AC, 30mA, 4.5kA, 1+N-pole B 25A. Current lifecycle. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"lifecycle_stage":"current"}},"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=294648&mlfb=5SU1353-0KV25","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1353-0KV25/alternatives.json"},"ai":{"faq":[{"question":"What is the closest alternative to 5SU1353-0KV25?","answer":"Within the same Siemens 5SU1 family, the closest alternative would be a unit with the same Type AC 30 mA residual and B-curve but a different current rating (e.g., 16 A or 32 A) if the 25 A rating does not match the load. No pin-compatible drop-in with identical ratings exists outside the 5SU1 series."},{"question":"Where can I buy 5SU1353-0KV25?","answer":"This part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1353-0KV25","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/5SU1353-0KV25 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}}