{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1656-6KV10","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1656-6KV10","canonicalUrl":"https://aoctrl.com/siemens/5SU1656-6KV10","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1656-6KV10","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SU1656-6KV10 FI/LS protector, Type A (PSE/SSF), 70mm, 300mA, 6kA, 1+N-pole, B-curve 10A.","salesMarkdown":"The Siemens 5SU1656-6KV10 is an FI/LS protector (RCBO) combining residual current and overcurrent protection in a single 1+N-pole module. Type A sensitivity detects pulsating DC fault currents up to 300 mA, while the B-curve 10 A thermal-magnetic trip handles short-circuit and overload. The 300 mA residual rating is the threshold for Type A earth-leakage detection — it will trip on sinusoidal AC faults and on pulsating DC faults (typical of half-wave rectified loads like switching power supplies or LED drivers). ## Deployment Context The 1+N-pole configuration switches the line conductor only; the neutral is switched internally for isolation but not protected against overcurrent. This is the typical arrangement for single-phase final circuits where the neutral is solidly bonded upstream.","metaTitle":"Siemens 5SU1656-6KV10 FI/LS Protector, Type A, 10A B-Curve,","metaDescription":"Siemens 5SU1656-6KV10 FI/LS protector, Type A, 10A B-curve, 300mA, 6kA. Lifecycle stage: current. 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=516493&mlfb=5SU1656-6KV10","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1656-6KV10/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SU1656-6KV10 and get a price?","answer":"This part is sourced to order against an RFQ through independent distribution channels. Submit an RFQ for current availability and pricing — confirmed at quote time, not before."},{"question":"What is the breaking capacity of 5SU1656-6KV10?","answer":"The FI/LS protector is rated for 6 kA breaking capacity at 230/400 V, which covers final subcircuit fault levels in most residential and light commercial installations."},{"question":"What does Type A residual current detection mean?","answer":"Type A detects both sinusoidal AC earth faults and pulsating DC fault currents (e.g., from half-wave rectified loads). The 300 mA sensitivity is the trip threshold for both waveforms."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1656-6KV10","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/5SU1656-6KV10 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}}