{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SM1616-8","brand":"Siemens","brandSlug":"siemens","productSlug":"5SM1616-8","canonicalUrl":"https://aoctrl.com/siemens/5SM1616-8","factsUrl":"https://aoctrl.com/api/mcp/products/5SM1616-8","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SM1 series, RCCB, 2-pole, type A, selective, In: 63 A, 300 mA, Un AC: 230 V, 10 kA SCCR, DIN rail mount, IP20.","salesMarkdown":"The Siemens 5SM1616-8 is a 2-pole SENTRON residual current circuit breaker (RCCB) rated 63 A at 230 V AC, 50 Hz, with a 300 mA type A tripping characteristic. It's a selective (time-delayed) device, meaning it coordinates with downstream RCCBs to isolate only the faulted branch — a key feature for panel builders who need to keep the rest of the line running during a ground fault. The 63 A rating holds at 40 °C and 45 °C; above that it derates to 60.48 A at 50 °C, down to 50.4 A at 70 °C. Type A detection catches both sinusoidal AC residual currents and pulsed DC (from rectifiers, VFDs, or switching supplies). The 300 mA threshold is typical for fire-protection or selective main-switch applications — not for personnel protection, which needs 30 mA or lower. Conductor range is 1 mm² minimum to 16 mm² maximum — covers everything from a 1.5 mm² lighting circuit to a 10 mm² feeder. Mounting position is any — no top/bottom restriction for the line/load connection. IP20 with conductors connected; suitable for enclosed distribution boards only.","metaTitle":"Siemens 5SM1616-8 SENTRON RCCB, 2-pole, 63A, 300mA, Type A,","metaDescription":"Siemens 5SM1616-8 SENTRON 2-pole RCCB, 63A, 300mA, type A, selective. 10kA SCCR, 16mm² max conductor. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Maximum":"16 mm²","Minimum":"1 mm²","at 40 Cel":"63 A","at 45 Cel":"63 A","at 50 Cel":"60.48 A","at 55 Cel":"57.96 A","at 60 Cel":"55.44 A","at 65 Cel":"52.92 A","at 70 Cel":"50.4 A","Rated Value":"50 Hz","Mounting type":"DIN rail (REG)","Number of poles":"2","lifecycle_stage":"current","Mounting position":"any","Installation depth":"55 mm","Product brand name":"SENTRON","Operating frequency":"50Hz","Product designation":"RCCB","Protection class IP":"IP20, if the distribution board is installed, with connected conductors","at AC / rated value":"230 V","Overvoltage category":"III","Design of the product":"Selective","Number of width units":"2","Type of fault current":"A","I2t-value / permissible":"70 000 A²·s","circuit-breaker / Design":"5SM1","Short-circuit current rating":"10 kA","Current / at AC / rated value":"63 A","Product feature / silicon-free":"Yes","For Testing Equipment / Minimum":"100 V","Position / of power supply cord":"top or bottom","Protection against electrical shock":"Finger and back-of-hand safe","Surge current resistance / rated value":"5 kA","Switching function / short-term delayed":"No","Tripping residual current / rated value":"300 mA","Size of installation devices / acc. to DIN 43880":"1","Mechanical service life (switching cycles) / typical":"10 000"}},"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=94107&mlfb=5SM1616-8","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SM1616-8/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SM1616-8 and how do I get a price?","answer":"This part is 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."},{"question":"What is 5SM1616-8's listed maximum conductor size?","answer":"Maximum conductor cross-section is 16 mm², minimum is 1 mm²."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SM1616-8","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/5SM1616-8 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}}