{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1656-0KV16","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1656-0KV16","canonicalUrl":"https://aoctrl.com/siemens/5SU1656-0KV16","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1656-0KV16","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SU1656-0KV16 FI/LS protector, Type AC (WS), 1+N-pole, B-curve 16A, 300mA, 6kA, width 70mm.","salesMarkdown":"The Siemens 5SU1656-0KV16 is a combined residual-current device and miniature circuit breaker — an FI/LS protector — in a single 1+N-pole module. It combines Type AC (sinusoidal AC fault detection) with a B-curve overcurrent trip at 16 A, a rated residual operating current of 300 mA, and a short-circuit breaking capacity of 6 kA. The 70 mm wide housing snaps onto DIN rail, so it fits standard consumer units and distribution boards. The B-curve 16 A overcurrent trip means the magnetic release operates at 3 to 5 times rated current (48–80 A), suited for resistive and moderate inductive loads like lighting, socket outlets, and small motor circuits. The 300 mA residual-current threshold is a delayed or selective trip level — it provides fire protection and equipment protection rather than personal shock protection (which typically requires 30 mA). Type AC detection covers sinusoidal AC faults only; if the installation includes non-sinusoidal loads (VFDs, switched-mode supplies), a Type A or Type F device would be required.","metaTitle":"Siemens 5SU1656-0KV16 FI/LS Protector, Type AC, 16A B-Curve,","metaDescription":"Siemens 5SU1656-0KV16 FI/LS protector, Type AC, 16A B-curve, 300mA, 6kA, 1+N-pole. Current production. 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=212844&mlfb=5SU1656-0KV16","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1656-0KV16/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SU1656-0KV16 and how do I get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current availability and pricing — confirmed at quote time."},{"question":"What is 5SU1656-0KV16's listed description?","answer":"The listed description is FI/LS-PROTECTOR TYPE AC (WS), D=70MM IFN 300MA, 6KA, 1+N-POLE B 16A."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1656-0KV16","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/5SU1656-0KV16 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}}