{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1154-1KV16","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1154-1KV16","canonicalUrl":"https://aoctrl.com/siemens/5SU1154-1KV16","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1154-1KV16","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SU1154-1KV16 FI/LS protector, Type AC (WS), D=70mm, IΔn 10mA, 10kA, 1+N-pole, C-curve 16A.","salesMarkdown":"The Siemens 5SU1154-1KV16 is a combined residual-current device and miniature circuit breaker — an FI/LS protector — in a single 1+N-pole module. The C-curve 16 A overcurrent trip handles motor-starting inrush and general-purpose branch circuits up to 16 A, while the 10 mA residual-current element (Type AC, sinusoidal only) catches the leakage a person or livestock would receive in a direct line-to-ground fault. The 70 mm width (D=70 mm) is a standard 4-module DIN-rail footprint, so it occupies four adjacent 18 mm slots in a consumer unit or sub-distribution board. The Type AC designation means it detects only sinusoidal AC residual currents — not pulsed DC or smooth DC — so it is suitable for circuits without electronic loads that generate DC fault components. Snap-on DIN-rail mounting for standard 35 mm rail in a distribution board or enclosure. The 1+N-pole arrangement switches the line conductor and provides a switched neutral — the neutral pole is not overload-protected but is switched with the line for isolation. The 10 mA sensitivity is below the 30 mA threshold used for general socket-outlet protection in most IEC 60364 installations, so this unit is typically specified for circuits where a lower trip threshold is required — such as wet rooms, medical locations, or equipment that demands a higher touch-voltage safety margin.","metaTitle":"Siemens 5SU1154-1KV16 FI/LS Protector, 10mA, 10kA, 1+N C16A","metaDescription":"Siemens 5SU1154-1KV16 FI/LS protector, Type AC, 10mA IΔn, 10kA breaking capacity, 1+N-pole, C-curve 16A. Current production 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=287232&mlfb=5SU1154-1KV16","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1154-1KV16/alternatives.json"},"ai":{"faq":[{"question":"What is the 5SU1154-1KV16 used for?","answer":"It is a combined FI/LS protector (RCD + MCB) for 1+N-pole circuits, rated C-curve 16 A overcurrent with 10 mA Type AC residual-current detection and 10 kA breaking capacity. Typical use is in distribution boards where a lower-than-standard 30 mA RCD trip threshold is needed alongside branch-circuit overcurrent protection."},{"question":"Where can I buy the 5SU1154-1KV16?","answer":"The 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 offer."},{"question":"What does Type AC mean on this FI/LS protector?","answer":"Type AC means the residual-current element detects only sinusoidal AC residual currents. It is not suitable for circuits with electronic loads that generate pulsed or smooth DC fault components — for those, a Type A or Type B device would be required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1154-1KV16","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/5SU1154-1KV16 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}}