{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SM1617-0FD","brand":"Siemens","brandSlug":"siemens","productSlug":"5SM1617-0FD","canonicalUrl":"https://aoctrl.com/siemens/5SM1617-0FD","factsUrl":"https://aoctrl.com/api/mcp/products/5SM1617-0FD","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SM1617-0FD FI-Protector type AC, 80A, 2-pole, 0.3A IΔn, 230V, 2.5TE, 55mm width.","salesMarkdown":"The 5SM1617-0FD is a 2-pole FI-Protector (residual current circuit breaker, RCCB) rated 80 A at 230 V, with a rated residual operating current (IΔn) of 0.3 A. The 80 A continuous rating means it can carry the full load current of a submain or feeder circuit up to that ampacity without nuisance tripping. The 'type AC' designation means this device is designed to detect sinusoidal alternating residual currents. It is the standard choice for circuits supplying resistive, inductive, and electronic loads with minimal DC content. For circuits with rectifiers, variable-speed drives, or other sources of pulsating DC fault currents, a type A or type B RCCB would be required — the type AC is not rated for those waveforms. The 55 mm width and 2.5 TE (module width units) determine the DIN-rail space it occupies in the distribution board. At 2.5 TE, it is wider than a standard single-pole MCB (1 TE) but narrower than a 4-pole RCCB (4 TE). ## Deployment Context It is used in commercial building electrical systems, light industrial control cabinets, and infrastructure installations where earth leakage protection is required by local wiring regulations (e.g., VDE 0100, IEC 60364). The 80 A rating suits it for main switchboard incomers or large submain feeders in a TN or TT earthing system.","metaTitle":"Siemens 5SM1617-0FD FI-Protector, 80A 2-Pole, 0.3A IΔn, 230V","metaDescription":"Siemens 5SM1617-0FD FI-Protector type AC, 80A, 2-pole, 0.3A IΔn, 230V. Current lifecycle stage. Sourced to order. Request a quote for pricing and availability.","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=396632&mlfb=5SM1617-0FD","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SM1617-0FD/alternatives.json"},"ai":{"faq":[{"question":"What is the 5SM1617-0FD used for?","answer":"The 5SM1617-0FD is a 2-pole residual current circuit breaker (RCCB) rated 80 A with a 0.3 A residual operating current. It provides earth leakage protection in 230 V AC circuits, typically installed in distribution boards for commercial or light industrial applications. The type AC detection covers sinusoidal AC fault currents."},{"question":"How do I get pricing and availability for the 5SM1617-0FD?","answer":"Pricing and current stock availability are confirmed at the time of quotation. Submit an RFQ against this order code, and we will provide a firm quote with lead time and unit pricing for your required quantity."},{"question":"What is the difference between type AC and type A RCCBs?","answer":"A type AC RCCB, like the 5SM1617-0FD, detects sinusoidal alternating residual currents only. A type A RCCB additionally detects pulsating DC residual currents up to 6 mA. For circuits with rectifiers, switching power supplies, or variable-speed drives, a type A device is needed. The type AC is suitable for standard resistive, inductive, and electronic loads without significant DC content."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SM1617-0FD","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/5SM1617-0FD 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}}