{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SM3316-6KK12","brand":"Siemens","brandSlug":"siemens","productSlug":"5SM3316-6KK12","canonicalUrl":"https://aoctrl.com/siemens/5SM3316-6KK12","factsUrl":"https://aoctrl.com/api/mcp/products/5SM3316-6KK12","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SM3 series RCCB, 2-pole, 63 A rated, Type A fault current, 230 V AC, instantaneous, DIN rail mount, 70 mm depth, IP20.","salesMarkdown":"Type A means it catches both pure AC fault currents and pulsating DC from rectified loads — think VFDs, switching power supplies, or lighting ballasts that can fool a standard AC-only RCCB. The instantaneous design (no short-time delay) gives it the fastest possible trip for a fault, so it's your first line of defense on general-purpose circuits. Rated 63 A continuous at 45 °C ambient without derating. Push it to 50 °C and you're good for 60.48 A; at 70 °C it still holds 50.4 A. ## Mounting and wiring reality Snaps onto standard DIN rail (REG profile). Takes up 2.5 width units (45 mm) — that's a hair wider than a standard 2-pole MCB, so check your rail budget if you're retrofitting into a tight row. That's a wide enough range to handle both the outgoing circuit conductors and the incoming supply tails. Supply feeds from the bottom per the design. Finger and back-of-hand safe terminals — you can work live in a panel if you're careful, though I wouldn't make a habit of it. IP20 with the distribution board closed and conductors connected. ## Coordination and selectivity notes Rated surge current resistance at 1 kA. Permissible I²t is 70,000 A²·s. Silicon-free construction, which matters in potting or conformal-coating environments where silicone outgassing can cause contact reliability issues.","metaTitle":"Siemens 5SM3316-6KK12 SENTRON RCCB, 63 A, Type A, 2-pole","metaDescription":"Siemens SENTRON 5SM3316-6KK12 RCCB, 63 A rated, Type A fault current, 2-pole, 230 V AC, DIN rail mount. Current production. 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":"1.5 ... 25 mm²","Width":"36 mm","Height":"90 mm","Stranded":"1.5 ... 25 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 ... +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":"2.5","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","Current / at AC / rated value":"63 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=370175&mlfb=5SM3316-6KK12","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SM3316-6KK12/alternatives.json"},"ai":{"faq":[{"question":"What is 5SM3316-6KK12's depth and how does it fit in a panel?","answer":"70 mm deep, 36 mm wide (2.5 width units), 90 mm tall. Snaps onto standard DIN rail. The 70 mm depth is typical for this class; verify your enclosure door clearance before wiring."},{"question":"What wire sizes does this RCCB accept?","answer":"Solid or stranded copper from 1.5 mm² up to 25 mm². That covers most branch circuit conductors from lighting circuits up to subfeed sizes."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SM3316-6KK12","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/5SM3316-6KK12 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}}