{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1656-6KV06","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1656-6KV06","canonicalUrl":"https://aoctrl.com/siemens/5SU1656-6KV06","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1656-6KV06","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SU1656-6KV06 FI/LS-protector Type A (PSE/SSF), D=70mm, IΔn 300mA, 6kA, 1+N-pole B 6A.","salesMarkdown":"The 'FI/LS' label is the German shorthand for this combo device. Type A sensitivity (300 mA IΔn) means it detects pulsating DC fault currents on top of sinusoidal AC — the standard for circuits feeding single-phase electronics, inverters, or variable-speed drives where a pure AC-sensing RCD might not trip on a half-wave fault. The B-curve 6 A overcurrent characteristic trips instantaneously at 3–5× rated current (18–30 A), so it's sized for resistive and general-purpose loads like lighting, small appliance circuits, or control transformers — not high-inrush motor or welding loads where a C or D curve would be needed. The 70 mm depth (D=70 mm) is the standard for Siemens 5SU6 series devices, so it fits alongside other Siemens modular protection gear without a step-out. The 1+N-pole format switches the live and monitors neutral; the neutral is switched internally but not protected against overcurrent.","metaTitle":"Siemens 5SU1656-6KV06 FI/LS Protector, Type A, 6A B-Curve, 3","metaDescription":"Siemens 5SU1656-6KV06 FI/LS-protector Type A, 6kA breaking capacity, 300mA IΔn, 1+N-pole B 6A. 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=134962&mlfb=5SU1656-6KV06","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1656-6KV06/alternatives.json"},"ai":{"faq":[{"question":"What does the description 'FI/LS-PROTECTOR TYPE A (PSE/SSF), D=70MM IFN 300MA, 6KA, 1+N-POLE B 6A' mean in plain terms?","answer":"It's a combined RCD/MCB (RCBO) with Type A earth leakage detection at 300 mA, a 6 kA short-circuit breaking capacity, one switched live plus monitored neutral, and a B-curve 6 A overcurrent trip."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1656-6KV06","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/5SU1656-6KV06 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}}