{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1356-0DV25","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1356-0DV25","canonicalUrl":"https://aoctrl.com/siemens/5SU1356-0DV25","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1356-0DV25","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SU1356-0DV25, FI/LS-protector Type AC (WS), 1+N-pole, B-curve 25A, rated residual current 30mA, breaking capacity 6kA, pig-tail connection, D=70mm.","salesMarkdown":"The Siemens 5SU1356-0DV25 is a combined residual-current device and miniature circuit breaker (RCBO) — an FI/LS-protector in Siemens' 5SU series. It packs ground-fault and overcurrent protection into a single 1+N-pole unit, saving a DIN-rail slot over separate RCD + MCB. The Type AC designation means it detects sinusoidal AC residual currents only; for pulsed DC or mixed-frequency faults you would need Type A or F. The pig-tail connection (factory-fitted neutral tail) simplifies wiring in distribution boards that use a separate neutral busbar. The 70 mm depth (D=70mm) fits standard enclosures; check clearance if the board has a shallow cover or door-mounted equipment. The pig-tail neutral is factory-terminated — no field crimp required, but verify the tail length reaches the neutral busbar before tightening. 1+N-pole configuration: the switched phase and neutral are both disconnected on fault, meeting isolation requirements for single-phase final circuits. The neutral pole is not overload-protected (the B-curve thermal-magnetic element is on the phase side only).","metaTitle":"Siemens 5SU1356-0DV25 FI/LS Protector, 25A 30mA 6kA Type AC","metaDescription":"Siemens 5SU1356-0DV25 FI/LS-protector, Type AC, 30mA, 6kA, 1+N-pole, 25A B-curve. Lifecycle stage: current. 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=235249&mlfb=5SU1356-0DV25","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1356-0DV25/alternatives.json"},"ai":{"faq":[{"question":"What does Type AC mean on this FI/LS-protector?","answer":"Type AC means the device detects sinusoidal AC residual currents only. It is the standard type for general-purpose circuits without electronic loads that generate pulsed or smooth DC fault currents. For circuits with variable-speed drives, LED lighting, or UPS-fed equipment, a Type A or Type F device would be required."},{"question":"Where can I buy the 5SU1356-0DV25?","answer":"This part is sourced and quoted to order against an RFQ through our independent distribution channel. 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/5SU1356-0DV25","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/5SU1356-0DV25 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}}