{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1656-7KV16","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1656-7KV16","canonicalUrl":"https://aoctrl.com/siemens/5SU1656-7KV16","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1656-7KV16","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SU1656-7KV16 FI/LS-PROTECTOR, Type A (PSE/SSF), D=70mm, IΔn 300mA, 6kA, 1+N-pole, C 16A.","salesMarkdown":"It's a Type A RCD with a 300 mA trip sensitivity, paired with a C-curve 16 A overcurrent characteristic and 6 kA breaking capacity. Type A RCD means it detects pulsating DC fault currents — the kind you get from single-phase rectifiers, switched-mode power supplies, and variable-frequency drives. If your panel feeds electronics or motor drives downstream, a Type A is the minimum residual-current protection that won't nuisance-trip on smooth DC ripple. The 300 mA IΔn is a common specification for whole-circuit protection (not personnel shock protection, which typically uses 30 mA): it catches insulation faults and arcing without being so sensitive that cable capacitance trips it. The C-curve 16 A trips magnetically between 5× and 10× rated current (80–160 A), so it handles motor-starting inrush and transformer energization on loads up to roughly 3.5 kW single-phase.","metaTitle":"Siemens 5SU1656-7KV16 FI/LS RCBO Type A, 16A C, 300mA, 6kA","metaDescription":"Siemens 5SU1656-7KV16 FI/LS protector Type A (PSE/SSF), 1+N-pole, C 16A, 300mA IΔn, 6kA breaking capacity. Current lifecycle stage. Sourced to order against an 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=50388&mlfb=5SU1656-7KV16","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1656-7KV16/alternatives.json"},"ai":{"faq":[{"question":"What does the 300 mA IΔn rating mean for this RCBO?","answer":"The 300 mA residual operating current (IΔn) is a protection level for insulation faults and fire prevention, not direct personnel shock protection. It's typically used on whole circuits where cable capacitance and equipment leakage would cause nuisance trips at 30 mA."},{"question":"Where can I buy the 5SU1656-7KV16?","answer":"This part 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 commercial response."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1656-7KV16","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/5SU1656-7KV16 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}}