{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1356-1DA25","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1356-1DA25","canonicalUrl":"https://aoctrl.com/siemens/5SU1356-1DA25","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1356-1DA25","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SU1356-1DA25 FI/LS protector, Type AC (WS), 30mA, 6kA, 1+N-pole, C-curve 25A, pigtail connection.","salesMarkdown":"The Siemens 5SU1356-1DA25 is a combined residual current device and miniature circuit breaker (RCBO) — what Siemens calls an FI/LS protector. The 30 mA sensitivity is the common touch-protection threshold; it covers the human body path to ground in a fault. This is a 1+N-pole unit — it switches and protects the line conductor and switches the neutral, but the neutral is not overload-protected. The pigtail connection (factory-fitted neutral tail) simplifies wiring in DIN-rail distribution boards: the neutral bus bar connects to the pigtail, and the line side clips onto the bus bar or is fed from the upstream device. The 70 mm depth (D=70mm) is standard for Siemens 5SU series RCBOs, so it fits flush in a standard enclosure without protruding past the cover.","metaTitle":"Siemens 5SU1356-1DA25 RCBO, Type AC, 30mA, 6kA, 25A, 1+N","metaDescription":"Siemens 5SU1356-1DA25 FI/LS protector, Type AC, 30mA, 6kA, 25A C-curve, 1+N pole, pigtail. Current 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=493983&mlfb=5SU1356-1DA25","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1356-1DA25/alternatives.json"},"ai":{"faq":[{"question":"What is the 5SU1356-1DA25 used for?","answer":"It is a combined RCD/MCB (RCBO) for protecting final circuits against earth faults and overloads/short-circuits — typically in residential or light commercial distribution boards where Type AC residual current detection is sufficient."},{"question":"Where can I buy the 5SU1356-1DA25 and how is it quoted?","answer":"The part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1356-1DA25","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/5SU1356-1DA25 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}}