{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1656-6KV13","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1656-6KV13","canonicalUrl":"https://aoctrl.com/siemens/5SU1656-6KV13","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1656-6KV13","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SU1656-6KV13, FI/LS protector Type A (PSE/SSF), D=70mm IΔn 300mA, 6kA, 1+N-pole B 13A.","salesMarkdown":"The Siemens 5SU1656-6KV13 is a combined residual-current device (RCD) and miniature circuit breaker (MCB) — an FI/LS protector — in a single 1+N-pole unit. It integrates Type A earth-leakage detection at 300 mA IΔn with a B-curve overcurrent trip at 13 A, rated for a 6 kA breaking capacity. Type A sensitivity means it catches pulsating DC fault currents as well as sinusoidal AC, which matters for modern loads with rectified front ends (variable-speed drives, switched-mode supplies, LED drivers). The 300 mA threshold is a common specification for socket-outlet circuits in commercial and light-industrial distribution boards where a lower 30 mA trip would cause nuisance tripping on leakage from connected electronics. The 70 mm depth (D=70 mm) is the dimension to watch when planning enclosure fill and gland-plate clearance — standard DIN-rail mounting, but the combined RCD+MCB module is deeper than a standalone MCB. The 1+N-pole format (switched phase plus switched neutral) means it occupies a single modular width on the rail, not two. For a retrofit into an existing Siemens distribution board, verify that the busbar comb profile matches the 1+N arrangement; some older boards use a 1-pole busbar that leaves the neutral terminal unconnected.","metaTitle":"Siemens 5SU1656-6KV13 FI/LS Protector Type A, 13A B-Curve, 3","metaDescription":"Siemens 5SU1656-6KV13 FI/LS protector Type A (PSE/SSF), 1+N-pole B 13A, 300mA IΔn, 6kA breaking capacity. Current-production 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=331989&mlfb=5SU1656-6KV13","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1656-6KV13/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 5SU1656-6KV13 and get current pricing?","answer":"The 5SU1656-6KV13 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What does the description FI/LS-PROTECTOR TYPE A (PSE/SSF) mean?","answer":"FI/LS is the German abbreviation for a combined RCD/MCB (Fehlerstrom-/Leitungsschutzschalter). Type A means the device detects sinusoidal AC and pulsating DC fault currents. PSE/SSF refers to the product standard (PSE = Prüfzeichen für Schutzeinrichtungen, SSF = Schalter-Schutz-Fein). The unit is a 1+N-pole B-curve 13 A overcurrent trip with a 300 mA residual-current threshold and 6 kA breaking capacity."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1656-6KV13","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/5SU1656-6KV13 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}}