{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1354-0KV40","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1354-0KV40","canonicalUrl":"https://aoctrl.com/siemens/5SU1354-0KV40","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1354-0KV40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SU1354-0KV40, FI/LS-Protector Type AC (WS), D=70mm, IΔn 30mA, 10kA, 1+N-Pole, B 40A.","salesMarkdown":"The Siemens 5SU1354-0KV40 is a combined residual-current and miniature circuit breaker (RCBO) — an FI/LS-Protector Type AC (WS) in a 1+N-pole form factor. It integrates 30 mA earth-leakage protection with a B-curve overcurrent trip rated at 40 A, all in a 70 mm-wide housing that snaps onto a standard DIN rail. The 10 kA breaking capacity (IEC 60898) means it can safely interrupt fault currents up to that level in a 230/400 V AC installation without upstream damage. The 30 mA sensitivity (IΔn) is the standard threshold for personal protection against direct-contact shock in residential and commercial final circuits. The B-curve (40 A) trips between 3 and 5 times rated current, suited for resistive and general-purpose loads with modest inrush — lighting, socket outlets, small appliances. The 10 kA breaking capacity covers most distribution board fault levels; for higher prospective fault currents, a current-limiting upstream MCB or fuse is required.","metaTitle":"Siemens 5SU1354-0KV40 FI/LS-Protector, Type AC, 30mA, 10kA,","metaDescription":"Siemens 5SU1354-0KV40 FI/LS-Protector, Type AC, 30mA, 10kA, 1+N-Pole B 40A. Current lifecycle stage. Sourced to order against an 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=496663&mlfb=5SU1354-0KV40","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1354-0KV40/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SU1354-0KV40 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."},{"question":"What is the description of 5SU1354-0KV40?","answer":"The description is FI/LS-PROTECTOR TYPE AC (WS), D=70MM IFN 30MA, 10KA, 1+N-POLE B 40A."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1354-0KV40","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/5SU1354-0KV40 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}}