{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1656-7KV20","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1656-7KV20","canonicalUrl":"https://aoctrl.com/siemens/5SU1656-7KV20","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1656-7KV20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SU1656-7KV20 FI/LS-Protector Type A (PSE/SSF), D=70mm, IΔn 300mA, 6kA, 1+N-pole, C 20A.","salesMarkdown":"The Siemens 5SU1656-7KV20 is an FI/LS-protector (RCBO) combining Type A residual current protection at 300 mA sensitivity with a C-curve 20 A overcurrent trip in a single 1+N-pole module. The Type A residual current detection handles pulsating DC fault currents from rectified loads — modern electronics, LED drivers, and variable-speed drives — which a standard Type AC would miss. At 300 mA sensitivity it is sized for fire protection rather than personnel protection (30 mA), so it is appropriate for fixed equipment circuits where the earth leakage from normal operation is too high for a 30 mA device.","metaTitle":"Siemens 5SU1656-7KV20 FI/LS-Protector Type A, 300mA, 6kA, C","metaDescription":"Siemens 5SU1656-7KV20 FI/LS-protector Type A, 300mA sensitivity, 6kA breaking capacity, 1+N-pole C 20A. 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=534529&mlfb=5SU1656-7KV20","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1656-7KV20/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity and sensitivity of 5SU1656-7KV20?","answer":"It is rated 6 kA breaking capacity with 300 mA residual sensitivity (Type A), 1+N-pole, C-curve 20 A overcurrent protection."},{"question":"Where can I buy 5SU1656-7KV20 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1656-7KV20","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/5SU1656-7KV20 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}}