{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY61 MCB B16","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY61-MCB-B16","canonicalUrl":"https://aoctrl.com/siemens/5SY61-MCB-B16","factsUrl":"https://aoctrl.com/api/mcp/products/5SY61%20MCB%20B16","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SY61 series, MCB B16, single-pole miniature circuit breaker, 16 A rated current, B-curve, 1.8 W power loss, IP20.","salesMarkdown":"The 5SY61 MCB B16: The Siemens 5SY6116-6 is a single-pole miniature circuit breaker from the 5SY61 series, rated at 16 A with a B-trip curve. It's the part you reach for when you need a standard MCB for a 16 A final subcircuit — lighting, general-purpose socket outlets, or small motor loads that don't need a C-curve's higher inrush tolerance. Single-pole construction means it protects one phase only, so it's a fit for single-phase branch circuits or for individual phase protection in a three-phase panel where you're using separate breakers per phase. At 18 mm width (one module), it occupies a single 18 mm slot in the enclosure. The 90 x 18 x 76 mm dimensions mean it fits standard distribution boards and sub-distribution panels without crowding — you can stack up to about 12 of these per 225 mm of rail before you need a busbar extension. IP20 finger-safe terminals on the line and load sides. That's standard for indoor panel mounting; if this breaker goes into a washdown area or outdoors, it needs an IP54 or higher enclosure around it. The operating temperature range of -25 to 55 °C covers most indoor industrial and commercial environments, but derate the continuous current if ambient exceeds 40 °C — Siemens typically recommends 10% derating per 10 °C above 40 °C for the 5SY series.","metaTitle":"5SY61 MCB B16 Siemens 5SY6116-6 MCB B16, 16A 1-Pole Circuit","metaDescription":"Siemens 5SY61 MCB B16 (5SY6116-6) single-pole 16A miniature circuit breaker, B-curve, 1.8W power loss, IP20. Current lifecycle stage. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"MNR":"5SY6116-6","MRN":"5SY6116-6","Type":"Circuit Breaker","Model":"5SY61 MCB B16","Weight":"Approx 0.15 kg","Condition":"Used","Shelf No.":"220901","Dimensions":"90 x 18 x 76 mm","Power Loss":"1.8 W","Manufacturer":"Siemens","Number of Poles":"1","lifecycle_stage":"current","Protection Class":"IP20","Operating Frequency":"50/60 Hz","Operational Current":"16 A","Operation Temperature":"-25…55 °C"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY61%20MCB%20B16/alternatives.json"},"ai":{"faq":[{"question":"What is the MNR and MRN for the 5SY61 MCB B16?","answer":"Both the manufacturer part number (MNR) and the material reference number (MRN) for this breaker are 5SY6116-6. Use this single string for ordering, documentation, and cross-referencing."},{"question":"Where can I buy the Siemens 5SY6116-6?","answer":"This part is sourced and quoted to order through independent industrial-automation distribution. Submit an RFQ against the order code 5SY6116-6; the desk will confirm current availability and pricing at quote time. No live stock or price is published here due to daily market movement on these breakers."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY61-MCB-B16","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/5SY61-MCB-B16 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}}