{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SM3412-6","brand":"Siemens","brandSlug":"siemens","productSlug":"5SM3412-6","canonicalUrl":"https://aoctrl.com/siemens/5SM3412-6","factsUrl":"https://aoctrl.com/api/mcp/products/5SM3412-6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SM3 RCCB, 5SM3412-6, Type A, 25 A rated, 100 mA trip, 2-pole, 230 V AC, 50 Hz, DIN rail.","salesMarkdown":"The Siemens 5SM3412-6 is a 2-pole residual current circuit breaker (RCCB) from the SENTRON 5SM3 series, rated for 25 A at 230 V AC, 50 Hz, with a 100 mA trip threshold. That 100 mA sensitivity is a step above the standard 30 mA personal-protection level; it's sized for equipment protection or for circuits where nuisance tripping from leakage on long cable runs or filter caps would be a problem. The 2-pole form factor (switching both line and neutral) and the 36 mm width (2 width units on DIN rail) mean it drops into a standard distribution board without crowding adjacent breakers. ## Mounting and environment — no special treatment needed Mounts on DIN rail (REG) in any position — top or bottom feed, horizontal or vertical panel orientation — which gives the panel builder flexibility when laying out a crowded enclosure. The IP20 rating (finger-safe, with conductors connected) is standard for enclosed distribution boards; no washdown or outdoor pretensions here. The current derating curve is published: full 25 A up to 45 °C, then linearly down to 17.5 A at 70 °C. If the RCCB sits next to high-draw breakers in a sealed enclosure, that derating matters — account for the internal temperature rise. ## Wire termination and panel integration Terminals accept 1 to 16 mm² solid or stranded copper — covers everything from a 1.5 mm² lighting circuit up to a 16 mm² feeder. Installation depth is 70 mm, height 90 mm, width 36 mm.","metaTitle":"Siemens 5SM3412-6 SENTRON RCCB, Type A, 25 A, 100 mA, 2-pole","metaDescription":"Siemens 5SM3412-6 SENTRON 5SM3 RCCB, 25 A rated, 100 mA trip, Type A, 2-pole, 230 V AC, 50 Hz. DIN rail mount, current lifecycle. 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":"25 A","at 45 Cel":"25 A","at 50 Cel":"23.5 A","at 55 Cel":"22 A","at 60 Cel":"20.5 A","at 65 Cel":"19 A","at 70 Cel":"17.5 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","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","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":"100 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=91328&mlfb=5SM3412-6","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SM3412-6/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between Type A and Type AC RCCBs, and why does this one use Type A?","answer":"Type A detects both sinusoidal AC fault currents and pulsating DC fault currents, which Type AC does not. This matters for circuits with electronic loads like VFDs, switch-mode power supplies, or single-phase rectifiers that can produce pulsating DC leakage. The 5SM3412-6 is Type A, so it's the correct choice for modern mixed-load panels."},{"question":"What wire sizes does 5SM3412-6 accept?","answer":"Terminals accept 1 to 16 mm² solid or stranded copper conductors."},{"question":"Where can I buy 5SM3412-6 and how is it quoted?","answer":"This part is sourced through independent distribution channels and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time — no blanket stock or lead-time figure applies across all supply points."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SM3412-6","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/5SM3412-6 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}}