{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SM3612-6BA","brand":"Siemens","brandSlug":"siemens","productSlug":"5SM3612-6BA","canonicalUrl":"https://aoctrl.com/siemens/5SM3612-6BA","factsUrl":"https://aoctrl.com/api/mcp/products/5SM3612-6BA","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SM3612-6BA, 2-pole RCCB, Type A, 25 A rated current, 300 mA residual, 230 V AC, 10 kA short-circuit rating, DIN rail mount.","salesMarkdown":"## What it is and what the ratings mean The Siemens SENTRON 5SM3612-6BA is a 2-pole RCCB from the 5SM3 design series, rated 25 A at 230 V AC with a 300 mA tripping residual current. Type A detects pulsating DC fault currents in addition to sinusoidal AC. The 10 kA short-circuit current rating (SCCR) at 230 V AC means the device can safely interrupt a fault current up to that level without welding contacts or rupturing the enclosure — a standard requirement for distribution boards fed from a transformer of typical impedance. Overvoltage category III confirms it is rated for fixed installation downstream of the main distribution board, not for outlet or appliance-level use. ## Panel integration and wiring Snaps onto DIN rail (REG profile) and occupies 2 width units. Installation depth is 70 mm. Screw terminals accept solid or stranded conductors from 1 to 16 mm². Tightening torque is 2.5 to 3 N·m. Supply can enter from top or bottom. Mounting position is any, and the housing is finger and back-of-hand safe (IP20 with conductors connected) — standard for enclosed distribution boards. The silicon-free construction matters if the panel is in a painting or coating environment where silicone outgassing can cause adhesion failures.","metaTitle":"Siemens 5SM3612-6BA SENTRON RCCB, 2-pole, 25 A, 300 mA, Type","metaDescription":"Siemens SENTRON 5SM3612-6BA RCCB, 2-pole, 25 A, 300 mA residual, Type A, 230 V AC, 10 kA SCCR, DIN rail. Current production. Sourced to order.","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","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","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","circuit-breaker / Design":"5SM3","Short-circuit current rating":"10 kA","Current / at AC / rated value":"25 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=615900&mlfb=5SM3612-6BA","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SM3612-6BA/alternatives.json"},"ai":{"faq":[{"question":"What are the solid and stranded conductor ranges for 5SM3612-6BA?","answer":"The screw terminals accept solid conductors from 1 to 16 mm² and stranded conductors from 1 to 16 mm²."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SM3612-6BA","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/5SM3612-6BA 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}}