{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1656-7KV10","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1656-7KV10","canonicalUrl":"https://aoctrl.com/siemens/5SU1656-7KV10","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1656-7KV10","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SU1656-7KV10 FI/LS protector, Type A (PSE/SSF), D=70mm, IΔn 300mA, 6kA, 1+N-pole C 10A.","salesMarkdown":"The Siemens 5SU1656-7KV10 is an FI/LS combination unit — a residual current circuit breaker with integral overcurrent protection (RCBO) — in a 1+N-pole form factor. It combines Type A residual current detection at 300 mA with a C-curve thermal-magnetic trip rated at 10 A, all in a single 70 mm wide module that snaps onto DIN rail. The Type A classification means it detects pulsating DC residual currents in addition to sinusoidal AC — a requirement for circuits with single-phase rectifiers, switched-mode power supplies, or variable-speed drives. The 300 mA sensitivity is typical for fire-protection or sub-distribution, not personnel protection (which would be 30 mA). The C-curve (10 A) handles moderate inrush from motorized or capacitive loads without nuisance tripping. The 1+N-pole construction switches both phase and neutral, with the neutral pole opening after the phase pole for safety.","metaTitle":"Siemens 5SU1656-7KV10 FI/LS Protector Type A, 10A C-Curve, 3","metaDescription":"Siemens 5SU1656-7KV10 FI/LS protector Type A (PSE/SSF), 1+N-pole C 10A, 300mA residual current, 6kA breaking capacity. Current lifecycle stage. 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=518179&mlfb=5SU1656-7KV10","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1656-7KV10/alternatives.json"},"ai":{"faq":[{"question":"What is the 5SU1656-7KV10 used for?","answer":"It is a combined residual current and overcurrent protective device (RCBO) for 1+N-pole circuits, providing Type A residual current protection at 300 mA and C-curve overcurrent protection at 10 A, with a 6 kA breaking capacity."},{"question":"What does Type A mean on this FI/LS protector?","answer":"Type A detects pulsating DC residual currents in addition to sinusoidal AC, making it suitable for circuits with rectifiers, SMPS, or drives that generate DC fault currents."},{"question":"Where can I buy the 5SU1656-7KV10?","answer":"This part is sourced to order against an RFQ through independent distribution. Submit a request for current pricing and availability."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1656-7KV10","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/5SU1656-7KV10 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}}