{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SM3314-6KK12","brand":"Siemens","brandSlug":"siemens","productSlug":"5SM3314-6KK12","canonicalUrl":"https://aoctrl.com/siemens/5SM3314-6KK12","factsUrl":"https://aoctrl.com/api/mcp/products/5SM3314-6KK12","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SM3 series, RCCB, 2-pole, 40 A rated, Type A, 10 kA SCCR, 50 Hz, DIN rail mount.","salesMarkdown":"The Siemens 5SM3314-6KK12 is a 2-pole residual current circuit breaker (RCCB) from the SENTRON 5SM3 series, rated 40 A at 230 V AC, 50 Hz, with a 10 kA short-circuit current rating. It detects Type A fault currents — AC sinusoidal and pulsating DC — making it the standard choice for circuits with electronic loads like switched-mode power supplies or variable-speed drives where pure AC detection would miss half-wave faults. The 40 A rating holds steady at 40 A up to 45 °C ambient, then derates linearly to 32 A at 70 °C — a useful curve if the RCCB shares a crowded DIN rail with heat-generating contactors or power supplies. Type A detection is required by IEC 60364 for circuits with single-phase rectifiers; if your load is purely resistive (heater, incandescent lighting), a Type AC would also work, but Type A is the safer default for mixed loads. Snaps onto a standard 35 mm DIN rail, occupies 2 width units (36 mm wide), and accepts solid or stranded conductors from 1 to 16 mm² — covers everything from 1.5 mm² lighting circuits up to 10 mm² feeder tails. The 70 mm depth fits flush in most 80 mm deep enclosures; no extra gland plate clearance needed. No last-time-buy or phase-out notice is associated with this order code.","metaTitle":"Siemens 5SM3314-6KK12 SENTRON RCCB, 2-pole, 40 A, Type A, 10","metaDescription":"Siemens 5SM3314-6KK12 SENTRON RCCB, 2-pole, 40 A rated, Type A fault current, 10 kA SCCR, 50 Hz, DIN rail mount. Current lifecycle stage. 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":{"Depth":"70 mm","Solid":"1 ... 16 mm²","Width":"36 mm","Height":"90 mm","Stranded":"1 ... 16 mm²","at 40 Cel":"40 A","at 45 Cel":"40 A","at 50 Cel":"38.4 A","at 55 Cel":"36.8 A","at 60 Cel":"35.2 A","at 65 Cel":"33.6 A","at 70 Cel":"32 A","Rated Value":"50 Hz","Mounting type":"DIN rail (REG)","During Storage":"-40 ... +75 °C","Number of poles":"2","lifecycle_stage":"current","Mounting position":"any","Installation depth":"70 mm","Product brand name":"SENTRON","Product variations":"SIGRES (harsh ambient conditions)","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","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","I2t-value / permissible":"70 000 A²·s","circuit-breaker / Design":"5SM3","Short-circuit current rating":"10 kA","Current / at AC / rated value":"40 A","Product feature / silicon-free":"Yes","Position / of power supply cord":"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":"30 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=447377&mlfb=5SM3314-6KK12","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SM3314-6KK12/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SM3314-6KK12 and how do I get a price?","answer":"This part is sourced to order against an RFQ through independent distribution. Submit a request for quote to confirm current availability and pricing."},{"question":"What is 5SM3314-6KK12's listed depth?","answer":"The depth is 70 mm, which fits standard 80 mm deep enclosures."},{"question":"What conductor sizes does 5SM3314-6KK12 accept?","answer":"It accepts solid and stranded conductors from 1 to 16 mm²."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SM3314-6KK12","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/5SM3314-6KK12 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}}