{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1653-1KV25","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1653-1KV25","canonicalUrl":"https://aoctrl.com/siemens/5SU1653-1KV25","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1653-1KV25","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SU1653-1KV25 FI/LS protector, Type AC (WS), 1+N-pole, C-curve 25 A, rated residual current 300 mA, breaking capacity 4.5 kA, 70 mm wide.","salesMarkdown":"The 5SU1653-1KV25 is a Siemens FI/LS combination unit — an RCBO that packs both overcurrent protection and residual-current detection into a single 1+N-pole module, 70 mm wide on the DIN rail. The C-curve 25 A thermal-magnetic trip handles motor-starting inrush and moderate inductive loads without nuisance tripping; the 300 mA Type AC residual element catches sinusoidal AC earth faults. ## Deployment context The 70 mm width occupies four standard 17.5 mm DIN-rail modules in a consumer unit or sub-distribution board. Type AC detection means it is intended for sinusoidal AC residual currents — not pulsed DC or smooth DC fault types, so it suits general lighting and socket-outlet circuits but not equipment with rectifiers or VFDs that generate DC fault components.","metaTitle":"Siemens 5SU1653-1KV25 FI/LS Protector, Type AC, 25A C-Curve,","metaDescription":"Siemens 5SU1653-1KV25 FI/LS protector, Type AC, 25A C-curve, 300mA residual, 4.5kA breaking capacity. Current lifecycle stage. 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=449134&mlfb=5SU1653-1KV25","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1653-1KV25/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SU1653-1KV25?","answer":"The rated breaking capacity is 4.5 kA (Icn), which covers standard domestic and light commercial sub-distribution boards where the prospective short-circuit current is limited by upstream protection."},{"question":"Where can I buy 5SU1653-1KV25 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — no stock count or price is published here."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1653-1KV25","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/5SU1653-1KV25 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}}