{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1354-7KV40","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1354-7KV40","canonicalUrl":"https://aoctrl.com/siemens/5SU1354-7KV40","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1354-7KV40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SU1354-7KV40 FI/LS-protector Type A (PSE/SSF), D=70mm, IΔn 30mA, 10kA, 1+N-pole, C 40A.","salesMarkdown":"The Siemens 5SU1354-7KV40 is a combined residual-current device and miniature circuit breaker (RCBO) in a 1+N-pole form factor, rated C 40A with 30 mA earth-leakage trip sensitivity and a 10 kA short-circuit breaking capacity. The Type A detection means it catches both sinusoidal AC fault currents and pulsating DC fault currents — the kind you get from single-phase rectifiers in switched-mode power supplies, LED drivers, or VFD front ends. That 30 mA IΔn is the standard for personal protection in most residential and light-commercial circuits (IEC 60364-7-710 for medical locations goes lower, but this is the common spec for socket-outlet circuits in offices and homes). The 70 mm depth from the mounting rail to the front of the device is a standard dimension that fits most domestic and light-commercial consumer units, but it's worth checking the enclosure depth if you're retrofitting into a shallow panel. The 1+N-pole configuration switches the line conductor and provides neutral disconnection on the residual-current side — the neutral is switched, so it's suitable for single-phase circuits where you need to isolate both poles on a fault. The C-curve (40 A) means the magnetic trip operates at 5 to 10 times rated current (200–400 A), so it's sized for motor-starting or transformer inrush loads that would nuisance-trip a B-curve device.","metaTitle":"Siemens 5SU1354-7KV40 FI/LS Protector, Type A, 30mA, 10kA, C","metaDescription":"Siemens 5SU1354-7KV40 FI/LS-protector Type A (PSE/SSF), 30mA, 10kA, 1+N-pole C 40A. Current production 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=436319&mlfb=5SU1354-7KV40","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1354-7KV40/alternatives.json"},"ai":{"faq":[{"question":"What does the Type A designation mean on this RCBO?","answer":"Type A means the device detects both sinusoidal AC residual currents and pulsating DC residual currents. That covers the fault signature from single-phase rectifiers in common electronic loads like switched-mode power supplies, LED drivers, and variable-speed drives."},{"question":"What is the breaking capacity and sensitivity of 5SU1354-7KV40?","answer":"The 5SU1354-7KV40 has a 10 kA short-circuit breaking capacity and a 30 mA residual-current sensitivity (IΔn). It's a 1+N-pole device with a C-curve at 40 A rated current."},{"question":"How do I get current pricing and availability for 5SU1354-7KV40?","answer":"The part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at the time of quote."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1354-7KV40","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/5SU1354-7KV40 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}}