{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1654-7KV40","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1654-7KV40","canonicalUrl":"https://aoctrl.com/siemens/5SU1654-7KV40","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1654-7KV40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SU1654-7KV40 FI/LS-protector, Type A (PSE/SSF), D=70mm, IΔn 300mA, 10kA, 1+N-pole, C-curve 40A.","salesMarkdown":"The Siemens 5SU1654-7KV40 is a combined residual current and overcurrent protective device — an RCBO — in a single 1+N-pole module. It integrates Type A residual current detection at 300 mA with a C-curve thermal-magnetic overcurrent trip set at 40 A, all rated for a 10 kA breaking capacity. The 70 mm depth means it sits flush in a standard DIN-rail distribution board without protruding past the gland plate, which matters when you're packing multiple ways into a tight enclosure. Type A residual detection responds to AC sinusoidal faults and pulsed DC faults. The 300 mA sensitivity is for equipment and fire protection, not personnel protection. In a panel with a 10 kA SCCR rating upstream, this device coordinates without requiring a current-limiting backup fuse — it clears the fault itself. The C-curve (40 A) means the magnetic trip activates between 5× and 10× In, so 200–400 A instantaneous. That suits motor-starting loads, small compressors, and pump circuits where inrush would nuisance-trip a B-curve device. For a purely resistive load like heating elements, a B-curve sibling would be a better match; this one is sized for moderate inductive inrush.","metaTitle":"5SU1654-7KV40 Siemens RCBO Type A, 40A, 300mA, 10kA","metaDescription":"Siemens 5SU1654-7KV40 FI/LS protector Type A, 40A C-curve, 300mA residual, 10kA breaking capacity. Current production lifecycle. Quoted 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=317919&mlfb=5SU1654-7KV40","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1654-7KV40/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1654-7KV40","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/5SU1654-7KV40 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}}