{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1356-6KV10","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1356-6KV10","canonicalUrl":"https://aoctrl.com/siemens/5SU1356-6KV10","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1356-6KV10","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SU1356-6KV10 FI/LS-protector, Type A (PSE/SSF), D=70mm, IΔn 30mA, 6kA, 1+N-pole B-curve 10A.","salesMarkdown":"The Siemens 5SU1356-6KV10 is a combined residual-current device and miniature circuit breaker (RCBO) — an FI/LS-protector in Siemens' terminology. It integrates Type A residual-current detection at 30 mA with a B-curve overcurrent trip at 10 A, all in a 1+N-pole, 6 kA breaking-capacity package. The 30 mA IΔn is the standard threshold for personal protection against direct contact (per IEC 60364), while the B-curve 10 A trips between 3 and 5 times rated current for resistive or low-surge loads. The 70 mm depth (D=70mm) is a standard modular dimension for Siemens' 5SU series, fitting into their distribution boards and enclosures without overhang. The Type A residual-current detection covers pulsating DC faults (from rectified loads like electronics or LED drivers) in addition to sinusoidal AC — a requirement for circuits feeding single-phase power supplies or appliances with rectifiers. ## Deployment context The Type A residual-current detection is the deciding factor for circuits with electronic loads — if the downstream equipment includes switched-mode power supplies, LED drivers, or variable-speed drives, a Type A device is required over a basic Type AC. The B-curve 10 A is suited for lighting circuits, socket outlets in residential or light commercial use, and control transformers where inrush is modest.","metaTitle":"Siemens 5SU1356-6KV10 FI/LS Protector, Type A, 30mA, 6kA, B","metaDescription":"Siemens 5SU1356-6KV10 FI/LS-protector, Type A (PSE/SSF), 30mA residual, 6kA breaking capacity, 1+N-pole B-curve 10A. 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=291680&mlfb=5SU1356-6KV10","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1356-6KV10/alternatives.json"},"ai":{"faq":[{"question":"What is 5SU1356-6KV10's rated breaking capacity and residual current?","answer":"The 5SU1356-6KV10 is rated for 6 kA breaking capacity and 30 mA residual current (IΔn). The 6 kA is the short-circuit breaking capacity at 230/400 V; the 30 mA is the earth-leakage threshold for personal protection."},{"question":"What does the Type A designation mean on this FI/LS-protector?","answer":"Type A residual-current detection means the device trips on sinusoidal AC faults and pulsating DC faults (from rectified loads). This is required for circuits feeding electronics, LED drivers, or appliances with rectifiers — a Type AC device alone would not detect pulsating DC leakage."},{"question":"Where can I buy 5SU1356-6KV10?","answer":"The 5SU1356-6KV10 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time; no stock or lead-time figure is stated here."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1356-6KV10","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/5SU1356-6KV10 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}}