{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SM1111-6BA","brand":"Siemens","brandSlug":"siemens","productSlug":"5SM1111-6BA","canonicalUrl":"https://aoctrl.com/siemens/5SM1111-6BA","factsUrl":"https://aoctrl.com/api/mcp/products/5SM1111-6BA","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SM1111-6BA FI Protector Type A (PSE/SSF), D=55mm, 16A, 2-pole, IΔn 10mA, 230V, 2TE.","salesMarkdown":"The Siemens 5SM1111-6BA is a Type A residual current device (RCD) — what Siemens calls an FI Protector — rated 16A, 2-pole, with a 10 mA trip sensitivity at 230 V. The Type A classification means it detects pulsating DC fault currents on top of sinusoidal AC, which covers most modern electronic loads like switched-mode power supplies, VFDs, and single-phase rectifiers. The 10 mA IΔn is the high-sensitivity end of the scale — it catches leakage currents well below what a 30 mA unit would pass, so it's typically specified for circuits where direct contact with live parts is a realistic risk (e.g., hand-held tools in a wet environment, or medical locations). The 16 A rated current matches standard 16 A final subcircuits in IEC 60364. Two modules wide (36 mm), so it replaces a standard 2-pole MCB slot. Wires up with the incoming phase and neutral through the top terminals, load out the bottom. The 55 mm depth (D=55mm) fits flush in most domestic and light-commercial consumer units without hitting the enclosure lid.","metaTitle":"Siemens 5SM1111-6BA FI Protector Type A RCD, 16A 10mA 2-Pole","metaDescription":"Siemens 5SM1111-6BA FI Protector Type A (PSE/SSF), 16A 2-pole, 10mA IΔn, 230V, 2TE. Current lifecycle stage. Quoted to order.","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=350834&mlfb=5SM1111-6BA","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SM1111-6BA/alternatives.json"},"ai":{"faq":[{"question":"What is the 5SM1111-6BA used for?","answer":"It's a Type A residual current device (RCD) rated 16A, 2-pole, with a 10 mA trip threshold at 230 V. Used for personnel protection in circuits with electronic loads that generate pulsating DC fault currents — typical in final subcircuits for hand-held tools, pumps, or lighting in wet areas."},{"question":"How do I get pricing and availability for the 5SM1111-6BA?","answer":"Sourced and quoted 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/5SM1111-6BA","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/5SM1111-6BA 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}}