{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1656-1KV16","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1656-1KV16","canonicalUrl":"https://aoctrl.com/siemens/5SU1656-1KV16","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1656-1KV16","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SU1656-1KV16 FI/LS protector, Type AC (WS), 16A C-curve, 300mA residual current, 6kA breaking capacity, 1+N-pole, width 70mm.","salesMarkdown":"The Siemens 5SU1656-1KV16 is an FI/LS combination unit — a residual-current circuit breaker (RCD) and miniature circuit breaker (MCB) in one 70 mm wide module. That means a single device provides both earth-leakage protection and overcurrent/short-circuit protection for a final subcircuit, saving a DIN-rail position compared to separate RCD and MCB units. The 16 A C-curve thermal-magnetic trip handles motor inrush and general-purpose loads; the 300 mA Type AC residual-current element catches sinusoidal AC fault currents to ground. On a DIN-rail panel, the 70 mm width is the footprint to plan for.","metaTitle":"Siemens 5SU1656-1KV16 FI/LS Protector, 16A C-curve, 300mA, 6","metaDescription":"Siemens 5SU1656-1KV16 FI/LS protector, Type AC, 16A C-curve, 300mA sensitivity, 6kA breaking capacity, 1+N pole. Current lifecycle stage. Available to order.","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=414874&mlfb=5SU1656-1KV16","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1656-1KV16/alternatives.json"},"ai":{"faq":[{"question":"What is the 5SU1656-1KV16 used for?","answer":"The Siemens 5SU1656-1KV16 is a combination RCD/MCB (FI/LS protector) used for protecting final circuits against both earth leakage (300 mA Type AC) and overcurrent/short-circuit (16 A C-curve) in a single 70 mm wide DIN-rail module."},{"question":"Where can I buy the 5SU1656-1KV16?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Current pricing and availability are confirmed at the time of quotation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1656-1KV16","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/5SU1656-1KV16 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}}