{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SM1314-0","brand":"Siemens","brandSlug":"siemens","productSlug":"5SM1314-0","canonicalUrl":"https://aoctrl.com/siemens/5SM1314-0","factsUrl":"https://aoctrl.com/api/mcp/products/5SM1314-0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SM1314-0 RCCB, 2-pole, 40 A rated, 30 mA trip, Type AC, instantaneous, 230 V AC, DIN rail mount, IP20.","salesMarkdown":"## RCCB for standard AC residual-current protection The Siemens 5SM1314-0 is a 2-pole SENTRON residual-current circuit breaker (RCCB) rated 40 A at 230 V AC, with a 30 mA tripping threshold for Type AC fault currents. The 30 mA trip level provides supplementary protection against electric shock (finger and back-of-hand safe per the evidence,). Mounts on DIN rail (REG profile,) and occupies 2 width units with a 55 mm installation depth. This flexibility simplifies panel layout when integrating into existing SENTRON sub-distribution boards. ## Thermal derating and short-circuit coordination Rated current holds at 40 A up to 45 °C ambient. Above that, derate linearly: 38.4 A at 50 °C, 36.8 A at 55 °C, 35.2 A at 60 °C, 33.6 A at 65 °C, and 32 A at 70 °C. Short-circuit current rating (SCCR) is 10 kA, with a let-through current of 7,500 A and an I²t value of 70,000 A²·s. For coordination with an upstream MCB, the conditional rating per EN 60898 is 0.5 kA, and per IEC 61008-1 also 0.5 kA. This means the RCCB relies on the upstream protective device to limit fault energy below its withstand — verify the upstream breaker's let-through is within these limits.","metaTitle":"Siemens 5SM1314-0 SENTRON RCCB, 40A, 30mA, 2-Pole, 230V AC,","metaDescription":"Siemens 5SM1314-0 SENTRON RCCB, 40A rated, 30mA trip, 2-pole, 230V AC, 10kA SCCR. Current production. Sourced to order. Request quote.","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","Mounting Type":"DIN rail (REG)","Number Of Poles":"2","lifecycle_stage":"current","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","Number Of Width Units":"2","Type Of Fault Current":"AC","I2t value / permissible":"70 000 A²·s","at 40 °C / rated value":"40 A","at 45 °C / rated value":"40 A","at 50 °C / rated value":"38.4 A","at 55 °C / rated value":"36.8 A","at 60 °C / rated value":"35.2 A","at 65 °C / rated value":"33.6 A","at 70 °C / rated value":"32 A","Short-Circuit Current Rating":"10 kA","Product Feature / Silicon-Free":"Yes","acc. to EN 60898 / rated value":"0.5 kA","Position / Of Power Supply Cord":"top or bottom","Let-Through Current / Permissible":"7 500 kA","Protection Against Electrical Shock":"Finger and back-of-hand safe","supply voltage / at AC / rated value":"230 V","according to IEC 61008-1 / rated value":"0.5 kA","Switching Function / Short-Term Delayed":"No","Tripping Residual Current / Rated Value":"30 mA","operating current / at AC / rated value":"40 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":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=239217&mlfb=5SM1314-0","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SM1314-0/alternatives.json"},"ai":{"faq":[{"question":"What is the 5SM1314-0 rated current at different ambient temperatures?","answer":"The RCCB holds 40 A up to 45 °C ambient. Above that, it derates to 38.4 A at 50 °C, 36.8 A at 55 °C, 35.2 A at 60 °C, 33.6 A at 65 °C, and 32 A at 70 °C (–)."},{"question":"What is the short-circuit current rating of the 5SM1314-0?","answer":"The SCCR is 10 kA. The conditional rating with an upstream MCB per EN 60898 and IEC 61008-1 is 0.5 kA. Let-through current is 7,500 A with an I²t of 70,000 A²·s."},{"question":"What compliance documentation does Siemens provide for the 5SM1314-0?","answer":"The device is designed to EN 60898 and IEC 61008-1. It carries overvoltage category III and is silicon-free. Protection against electric shock is finger and back-of-hand safe."},{"question":"Where can I buy the 5SM1314-0 and get current pricing?","answer":"This part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SM1314-0","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/5SM1314-0 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}}