{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1654-7KV25","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1654-7KV25","canonicalUrl":"https://aoctrl.com/siemens/5SU1654-7KV25","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1654-7KV25","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SU1654-7KV25 FI/LS-PROTECTOR TYPE A (PSE/SSF), D=70MM IFN 300MA, 10KA, 1+N-POLE C 25A.","salesMarkdown":"## FI/LS Protector — Type A, 25 A, 300 mA, 10 kA The Siemens 5SU1654-7KV25 is a combined residual current device and miniature circuit breaker (RCBO) in a single 1+N-pole module, rated C-curve 25 A with 300 mA sensitivity and a 10 kA breaking capacity. The Type A designation means it detects pulsating DC fault currents on top of sinusoidal AC — necessary for circuits with single-phase rectifiers, switched-mode power supplies, or variable-speed drives that generate smooth DC ripple. The 300 mA trip threshold suits it for fire-protection or equipment-protection duty rather than personnel shock protection; standard socket-outlet circuits typically call for 30 mA. ## Panel Integration The combined RCBO eliminates the need for a separate RCD and MCB in series, saving one DIN position per circuit. The C-curve (25 A) handles moderate inrush from motor-starting or capacitive loads without nuisance tripping, while the 10 kA breaking capacity coordinates with upstream Type 2 SPDs or a main breaker rated above that fault level. The 300 mA residual sensitivity is a deliberate choice: it avoids nuisance tripping on leakage from long cable runs or filter capacitors while still providing fire protection per IEC 60364. Type A detection covers the residual-current shapes that a pure AC-sensitive (Type AC) device would miss, so it is the minimum type required by many national wiring regulations (e.g., VDE 0100-530) for circuits containing electronic loads.","metaTitle":"Siemens 5SU1654-7KV25 FI/LS Protector Type A, 25A, 300mA, 10","metaDescription":"Siemens 5SU1654-7KV25 FI/LS protector, Type A (PSE/SSF), 1+N-pole, C-curve 25A, 300mA sensitivity, 10kA breaking capacity. Current lifecycle stage. Order to 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=272666&mlfb=5SU1654-7KV25","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1654-7KV25/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity and sensitivity of this RCBO?","answer":"The 5SU1654-7KV25 has a 10 kA breaking capacity and 300 mA residual sensitivity, Type A, in a 1+N-pole C-curve 25 A configuration."},{"question":"Where can I buy the 5SU1654-7KV25?","answer":"This part is available to quote 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/5SU1654-7KV25","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/5SU1654-7KV25 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}}