{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1354-0KV25","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1354-0KV25","canonicalUrl":"https://aoctrl.com/siemens/5SU1354-0KV25","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1354-0KV25","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SU1354-0KV25 FI/LS protector, Type AC (WS), 1+N-pole, B-curve 25A, 30mA residual sensitivity, 10kA breaking capacity, 70mm width.","salesMarkdown":"The Siemens 5SU1354-0KV25 is an FI/LS combination unit — an RCBO that packs both overcurrent protection and residual current detection into a single 70mm-wide module. It's a Type AC device rated for sinusoidal AC fault currents, with a 30mA trip threshold and 10kA breaking capacity. The B-curve 25A thermal-magnetic characteristic handles general-purpose and resistive loads without nuisance tripping on modest inrush. The B-curve (3-5x In magnetic trip) is the right choice for lighting, socket outlets, and general-purpose circuits; if you're feeding motor or transformer loads with higher inrush, you'd want a C-curve instead. ## Integration note The 70mm width occupies three standard 18mm DIN-rail modules. It snaps onto the DIN rail without tools and the tunnel terminals accept up to 25mm² conductor — common for the 25A feed-through. The Type AC designation means it detects only sinusoidal AC residual currents; if your circuit includes variable-speed drives, UPS systems, or LED drivers that generate pulsed DC fault currents, you need a Type A or Type F device instead.","metaTitle":"Siemens 5SU1354-0KV25 FI/LS Protector, Type AC, 25A B-Curve,","metaDescription":"Siemens 5SU1354-0KV25 FI/LS protector, Type AC, 25A B-curve, 30mA sensitivity, 10kA breaking capacity. Current lifecycle stage. 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=33469&mlfb=5SU1354-0KV25","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1354-0KV25/alternatives.json"},"ai":{"faq":[{"question":"What is the 5SU1354-0KV25 used for?","answer":"It is a combined overcurrent and residual current protective device (RCBO) for 1+N-pole final circuits, rated 25A B-curve with 30mA residual sensitivity and 10kA breaking capacity."},{"question":"How do I get current pricing and availability for the 5SU1354-0KV25?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1354-0KV25","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/5SU1354-0KV25 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}}