{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SM1111-0","brand":"Siemens","brandSlug":"siemens","productSlug":"5SM1111-0","canonicalUrl":"https://aoctrl.com/siemens/5SM1111-0","factsUrl":"https://aoctrl.com/api/mcp/products/5SM1111-0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON series, RCCB, 5SM1111-0, 2-pole, 16 A rated at 40 °C, 10 mA residual trip, 230 V AC, 10 kA SCCR, DIN rail mount.","salesMarkdown":"The Siemens SENTRON 5SM1111-0 is a 2-pole residual current circuit breaker (RCCB) rated for 16 A at 40 °C with a 10 mA residual trip threshold, designed for 230 V AC single-phase circuits. It provides earth leakage protection per IEC 61008-1, tripping instantaneously on AC-type residual currents above 10 mA — the threshold that covers personnel protection against direct contact in wet or conductive environments. The 10 mA trip rating is the critical selection parameter: it is the lowest standard sensitivity for RCCBs, used where the installation requires enhanced protection against ventricular fibrillation — typically in medical locations, wet rooms, or circuits supplying hand-held equipment. The 16 A continuous rating holds through 45 °C ambient, then derates linearly to 11.2 A at 70 °C, so the thermal limit in a warm panel is the real ampacity, not the 16 A nameplate. The short-circuit current rating (SCCR) is 10 kA per IEC 61008-1, but note the conditional rating against EN 60898 is only 0.5 kA — the lower figure applies when the RCCB is used as a stand-alone device without an upstream MCB or fuse to limit the let-through energy. For the 10 kA rating to hold, the RCCB must be backed by a suitable overcurrent protective device with a let-through I²t of 70 000 A²·s or less. The 10 000 mechanical switching cycles are typical for an RCCB in a distribution board — the part is designed for infrequent manual operation (test button and isolation), not for switching loads on every cycle. The IP20 rating is standard for enclosed distribution boards; the protection applies only with conductors connected and the board closed. The 55 mm installation depth fits flush in most domestic and light-commercial distribution boards. The silicon-free construction makes it suitable for use in potting or encapsulation environments where silicone outgassing could contaminate contacts or optical components.","metaTitle":"Siemens SENTRON 5SM1111-0 RCCB, 16A, 10mA, 2-Pole, 230V AC","metaDescription":"Siemens SENTRON 5SM1111-0 RCCB, 16A rated, 10mA trip, 2-pole, 230V AC, 10kA SCCR. Current lifecycle stage. DIN rail mount. 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":{"Maximum":"45 °C","Minimum":"-5 °C","Rated Value":"50 Hz","Number Of Poles":"2","lifecycle_stage":"current","Fastening Method":"DIN rail (REG)","Mounting Position":"any","Installation Depth":"55 mm","Product Brand Name":"SENTRON","Maximum Permissible":"60 °C","Minimum Permissible":"-40 °C","Operating Frequency":"50 Hz","Product Designation":"RCCB","protection class IP":"IP20, if the distribution board is installed, with connected conductors","Overvoltage Category":"III","Design Of The Product":"Instantaneous","Residual Current Type":"AC","I2t value / permissible":"70 000 A²·s","at 40 °C / rated value":"16 A","at 45 °C / rated value":"16 A","at 50 °C / rated value":"15.04 A","at 55 °C / rated value":"14.08 A","at 60 °C / rated value":"13.12 A","at 65 °C / rated value":"12.16 A","at 70 °C / rated value":"11.2 A","Short-Circuit Current Rating":"10 kA","Number Of Modular Width Units":"2","Product Feature / Silicon-Free":"Yes","acc. to EN 60898 / rated value":"0.5 kA","Position / Of Power Supply Cord":"Top or bottom (bottom for SIGRES function also in switched-off state)","Let-Through Current / Permissible":"7 500 kA","Tripping Fault Current / Rated Value":"10 mA","supply voltage / at AC / rated value":"230 V","according to IEC 61008-1 / rated value":"0.5 kA","Switching Function / Short-Term Delayed":"No","Touch Protection Against Electrical Shock":"Finger and back-of-hand safe","operational current / at AC / rated value":"16 A","Supply Voltage / For Testing Equipment / Minimum":"100 V","size of installation devices / acc. to DIN 43880":"1","Mechanical Service Life (Switching Cycles) / Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$328.78","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=392894&mlfb=5SM1111-0","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SM1111-0/alternatives.json"},"ai":{"faq":[{"question":"What is the 5SM1111-0 used for?","answer":"It is a 2-pole residual current circuit breaker (RCCB) that protects a 230 V AC single-phase circuit against earth leakage faults, tripping at 10 mA residual current. Typical applications include personnel protection in wet areas, medical locations, and circuits supplying hand-held equipment where enhanced sensitivity is required."},{"question":"Where can I buy the 5SM1111-0?","answer":"The 5SM1111-0 is sourced and quoted to order against an RFQ through independent industrial-automation distribution. Availability and current pricing are confirmed at the time of quotation — submit an RFQ for a firm price and delivery commitment."},{"question":"Will the 5SM1111-0 drop into a panel built for the 5SY7140-8CC?","answer":"Both are 2-pole, DIN-rail-mounted RCCBs from the Siemens SENTRON family, sharing the same 2-module-width footprint and 55 mm depth. The critical difference is the trip threshold: the 5SM1111-0 trips at 10 mA, while the 5SY7140-8CC is a higher-sensitivity variant. If the panel wiring and upstream protection are sized for a 10 mA device, the 5SM1111-0 will physically and electrically fit without rewiring."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SM1111-0","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/5SM1111-0 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}}