{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1354-0KV20","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1354-0KV20","canonicalUrl":"https://aoctrl.com/siemens/5SU1354-0KV20","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1354-0KV20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SU1354-0KV20 FI/LS-protector, Type AC (WS), D=70mm, IΔn 30mA, 10kA, 1+N-pole, B 20A.","salesMarkdown":"The Siemens 5SU1354-0KV20 is a combined residual-current device (RCD) and miniature circuit breaker (MCB) — an FI/LS-protector — in a single 1+N-pole module. ## Where it goes in the panel The 1+N-pole format (switched phase plus switched neutral) means it occupies a single module width — 70 mm deep, per the description — and the neutral pole opens with the phase, which is required in some regional wiring regulations for RCD-protected circuits. The Type AC designation limits it to sinusoidal AC residual currents; if the downstream load includes electronics with half-wave rectification (e.g., switched-mode power supplies, LED drivers, variable-speed drives), a Type A or Type F device would be needed to detect pulsating DC fault currents that Type AC cannot see.","metaTitle":"Siemens 5SU1354-0KV20 FI/LS Protector, Type AC, 30mA, 10kA,","metaDescription":"Siemens 5SU1354-0KV20 FI/LS protector, Type AC, 30mA sensitivity, 10kA breaking capacity, 1+N-pole B-curve 20A. 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=395930&mlfb=5SU1354-0KV20","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1354-0KV20/alternatives.json"},"ai":{"faq":[{"question":"What is the 5SU1354-0KV20's breaking capacity and sensitivity?","answer":"It has a breaking capacity of 10 kA and a rated residual operating current IΔn of 30 mA, with a B-curve trip characteristic at 20 A."},{"question":"Where can I buy the 5SU1354-0KV20?","answer":"This part is sourced and quoted 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/5SU1354-0KV20","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/5SU1354-0KV20 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}}