{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SM1614-0FD","brand":"Siemens","brandSlug":"siemens","productSlug":"5SM1614-0FD","canonicalUrl":"https://aoctrl.com/siemens/5SM1614-0FD","factsUrl":"https://aoctrl.com/api/mcp/products/5SM1614-0FD","rawCanonicalId":null},"summary":{"shortDescription":"Siemens FI-Protector Type AC (WS), 55mm, 40A, 2-pole, IΔn 0.3A, 230V, 2TE.","salesMarkdown":"The Siemens 5SM1614-0FD is a Type AC residual current device (RCD) from the FI-Protector family, rated 40A, 2-pole, with a residual operating current (IΔn) of 0.3A at 230V. The Type AC designation means it detects sinusoidal AC residual currents only — the standard choice for general-purpose circuits without non-sinusoidal or pulsating DC fault profiles. The 0.3A trip threshold is higher than the common 30mA (0.03A) for personnel protection; this unit is sized for equipment or fire protection where a higher leakage tolerance is acceptable, or where nuisance tripping from downstream electronics would be an issue. The 55mm width and 2TE (two module spaces) form factor snap onto standard DIN rail. The 0.3A IΔn means this RCD coordinates with downstream MCBs rated up to 40A without nuisance tripping from normal cable capacitance or equipment leakage.","metaTitle":"Siemens 5SM1614-0FD FI-Protector Type AC RCD, 40A 2P 0.3A 23","metaDescription":"Siemens 5SM1614-0FD FI-Protector Type AC residual current device. 40A, 2-pole, 0.3A IΔn, 230V. 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=147122&mlfb=5SM1614-0FD","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SM1614-0FD/alternatives.json"},"ai":{"faq":[{"question":"What is the form factor and mounting of the 5SM1614-0FD?","answer":"The 5SM1614-0FD is a 55mm wide, 2TE module that snaps onto standard DIN rail in a distribution board. It is a 2-pole device switching both phase and neutral."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SM1614-0FD","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/5SM1614-0FD 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}}