{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SM1616-6","brand":"Siemens","brandSlug":"siemens","productSlug":"5SM1616-6","canonicalUrl":"https://aoctrl.com/siemens/5SM1616-6","factsUrl":"https://aoctrl.com/api/mcp/products/5SM1616-6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SM1 series RCCB, 2-pole, Type A instantaneous, 63 A at 230 V AC, 300 mA residual trip, 10 kA short-circuit rating, DIN rail mount.","salesMarkdown":"The Siemens 5SM1616-6 is a SENTRON 5SM1-series residual-current circuit breaker (RCCB) — two poles, Type A instantaneous trip, rated 63 A at 230 V AC with a 300 mA residual trip threshold. That 300 mA trip is a common choice for general protection in distribution boards where you need earth-leakage detection but want to avoid nuisance tripping on normal leakage from filters or long cable runs. ## Ratings that matter for the panel Mounts on DIN rail (REG), any position, and takes 2 width units (about 36 mm at 18 mm per unit). Installation depth is 55 mm — fits standard enclosures without crowding the gland plate. Terminal torque: 2.5 to 3 N·m on the screw terminals, which accept solid or stranded copper from 1 to 16 mm². That range covers most distribution tails and sub-feed conductors you'd see downstream of a 63 A breaker. ## Thermal derating — the real-world current limit The 63 A rating holds at ambient up to 45 °C. Above that, the continuous current drops: 60.48 A at 50 °C, 57.96 A at 55 °C, 55.44 A at 60 °C, 52.92 A at 65 °C, and 50.4 A at 70 °C. The storage range (-40 to +60 °C) is wider, but that's handling, not running.","metaTitle":"Siemens 5SM1616-6 SENTRON RCCB, 63A 30mA 2P Type A, 10kA","metaDescription":"Siemens 5SM1616-6 SENTRON RCCB, 63A rated, 300mA residual, 2-pole Type A instantaneous. 10kA SCCR, DIN rail mount. Current production. Quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Solid":"1 ... 16 mm²","Stranded":"1 ... 16 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)","During Storage":"-40 ... +60 °C","Number of poles":"2","lifecycle_stage":"current","Mounting position":"any","Installation depth":"55 mm","Product brand name":"SENTRON","Ambient temperature":"-25 ... +45 °C","Operating frequency":"50Hz","Product designation":"RCCB","Protection class IP":"IP20, if the distribution board is installed, with connected conductors","Overvoltage category":"III","Design of the product":"Instantaneous","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","Position / of power supply cord":"top or bottom","Protection against electrical shock":"Finger and back-of-hand safe","Supply voltage / at AC / rated value":"230 V","Surge current resistance / rated value":"1 kA","Switching function / short-term delayed":"No","Tripping residual current / rated value":"300 mA","Tightening torque / with screw-type terminals":"2.5 ... 3 N·m","Size of installation devices / acc. to DIN 43880":"1","Supply voltage / for testing equipment / minimum":"100 V","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=250271&mlfb=5SM1616-6","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SM1616-6/alternatives.json"},"ai":{"faq":[{"question":"What conductor sizes does the 5SM1616-6 accept?","answer":"Solid and stranded copper from 1 mm² up to 16 mm². The screw terminals tighten to 2.5–3 N·m."},{"question":"Where can I buy the 5SM1616-6 and how is it quoted?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What does Type A instantaneous mean on this RCCB?","answer":"Type A detects sinusoidal AC residual currents plus pulsating DC residual currents up to 6 mA of smooth DC. Instantaneous means no intentional time delay — it trips as soon as the residual exceeds 300 mA."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SM1616-6","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/5SM1616-6 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}}