{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SM3418-0KK","brand":"Siemens","brandSlug":"siemens","productSlug":"5SM3418-0KK","canonicalUrl":"https://aoctrl.com/siemens/5SM3418-0KK","factsUrl":"https://aoctrl.com/api/mcp/products/5SM3418-0KK","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SM3 series RCCB, 2-pole, type AC, In 100 A, IΔn 100 mA, Un AC 230 V, 10 kA SCCR, DIN rail mount.","salesMarkdown":"It carries a 100 A rated current and trips at 100 mA residual current — a setting used where a higher threshold is acceptable (e.g., feeder or submain protection, not individual socket-outlet circuits where 30 mA is typical). Rated at 100 A and 230 V AC, this RCCB handles the full load of a typical main switchboard feeder. The 100 mA trip threshold is deliberate — it avoids nuisance tripping from leakage currents that accumulate on long cable runs or equipment with natural capacitive leakage, while still providing earth-fault protection. The instantaneous design (no intentional delay) means it clears a fault within tens of milliseconds, which is the default for most RCCB applications. The 10 kA SCCR at 230 V AC means the device is rated to withstand and interrupt a short-circuit current up to that magnitude, matching the prospective fault level of a standard domestic or small commercial supply. Accepts solid or stranded conductors from 1.5 mm² up to 50 mm² — the 50 mm² upper end is generous for a 100 A device, allowing direct connection of the incoming feeder without a separate terminal block. Screw terminals require 3 to 3.5 N·m torque.","metaTitle":"Siemens 5SM3418-0KK SENTRON RCCB, 2-pole, 100 A, 100 mA, 230","metaDescription":"Siemens SENTRON 5SM3418-0KK RCCB, 2-pole, type AC, 100 A rated current, 100 mA trip, 230 V AC, 10 kA SCCR. Current production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Solid":"1.5 ... 50 mm²","title":"5SM3418-0KK","Stranded":"1.5 ... 50 mm²","Rated Value":"50 Hz","description":"Residual current operated circuit breaker, 2-pole, type AC, In: 100 A, 100 mA, Un AC: 230 V","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":"-5 ... +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":"AC","circuit-breaker / Design":"5SM3","Short-circuit current rating":"10 kA","Current / at AC / rated value":"100 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","Switching function / short-term delayed":"No","Tripping residual current / rated value":"100 mA","Tightening torque / with screw-type terminals":"3 ... 3.5 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,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/aca4e343967415bce5f3ce99d832482c.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=393968&mlfb=5SM3418-0KK"},"ai":{"faq":[{"question":"Where can I buy 5SM3418-0KK and get a price?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm quote."},{"question":"What is the conductor size range for 5SM3418-0KK?","answer":"Solid and stranded conductors from 1.5 mm² up to 50 mm² are accepted, which covers the full range for a 100 A feeder."},{"question":"Will 5SM3418-0KK drop into a panel specified around 5SU9304-1KK32?","answer":"No — the 5SU9304-1KK32 is an RCBO (RCD + MCB combined) with a 32 A rating and 30 mA trip, while the 5SM3418-0KK is a plain RCCB at 100 A / 100 mA. The 5SM3418-0KK is 2 width units (36 mm) versus 1 unit (18 mm) for the 5SU9304-1KK32, so the panel cutout and wiring differ. They are not drop-in substitutes."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SM3418-0KK","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/5SM3418-0KK when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}