{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1654-0KV40","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1654-0KV40","canonicalUrl":"https://aoctrl.com/siemens/5SU1654-0KV40","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1654-0KV40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SU1654-0KV40 FI/LS protector, type AC (WS), 40A B-curve, 10kA breaking capacity, 300mA residual current, 1+N-pole, 70mm width.","salesMarkdown":"The Siemens 5SU1654-0KV40 is a combined residual-current and miniature circuit breaker — an FI/LS protector — in a 1+N-pole form factor. The 70 mm width means it occupies four standard 17.5 mm modular DIN-rail slots in a distribution board. The 300 mA residual-current threshold (type AC, detecting sinusoidal AC earth faults only) suits general socket-outlet and lighting circuits where pulsing DC fault currents are not expected. The B-curve (3–5× In magnetic trip) protects cable runs and loads with limited inrush, typical of resistive and general-purpose circuits.","metaTitle":"Siemens 5SU1654-0KV40 FI/LS Protector, 40A B-Curve 10kA 300m","metaDescription":"Siemens 5SU1654-0KV40 FI/LS protector, type AC, 40A B-curve, 10kA breaking capacity, 300mA residual current. Current lifecycle stage. Quoted 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=354232&mlfb=5SU1654-0KV40","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1654-0KV40/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 5SU1654-0KV40?","answer":"Sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time."},{"question":"What does the description FI/LS-PROTECTOR TYPE AC (WS), D=70MM IFN 300MA, 10KA, 1+N-POLE B 40A mean?","answer":"It is a combined residual-current device (FI) and miniature circuit breaker (LS) — type AC detects sinusoidal AC earth faults. The 70 mm width, 300 mA rated residual current (IFN), 10 kA breaking capacity, 1+N-pole configuration, B-curve trip characteristic, and 40 A rated current are all specified."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1654-0KV40","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/5SU1654-0KV40 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}}