{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SM3418-6KK","brand":"Siemens","brandSlug":"siemens","productSlug":"5SM3418-6KK","canonicalUrl":"https://aoctrl.com/siemens/5SM3418-6KK","factsUrl":"https://aoctrl.com/api/mcp/products/5SM3418-6KK","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON RCCB, 5SM3418-6KK, 2-pole, Type A, 100 A rated current, 100 mA residual, 230 V AC, 10 kA SCCR, DIN rail mount.","salesMarkdown":"The Siemens SENTRON 5SM3418-6KK is a 2-pole residual current operated circuit breaker (RCCB), Type A, rated 100 A with a 100 mA residual trip threshold, for 230 V AC 50 Hz single-phase circuits. Type A detection means it catches sinusoidal AC faults plus pulsating DC faults — the kind you get from rectified loads like VFDs, switched-mode supplies, and single-phase drives. That 100 mA sensitivity is not for personnel protection (30 mA is the touch-safe threshold); it is sized for equipment and fire protection on larger feeders where leakage from filters and drives would nuisance-trip a finer unit. Depth is 70 mm, height 90 mm — standard SENTRON RCCB footprint. The supply can land top or bottom, which simplifies busbar routing in a crowded enclosure. ## Environmental and service life Rated for ambient temperatures from -25 °C to +45 °C, with storage down to -40 °C. That -25 °C floor matters for unheated electrical rooms in cold climates — the mechanism and the electronic trip circuit are rated to operate at that low end, not just survive it. It is silicon-free, which matters if the panel environment involves potting compounds or conformal coatings that can be contaminated by silicone outgassing. ## Breaking capacity and standards compliance The rated short-circuit breaking capacity is 1 kA per EN 60898 and per IEC 61008-1, with an ultimate SCCR of 10 kA. The 1 kA figure is the Icn for the RCCB under the product standard; the 10 kA is the Icu or conditional rating with an upstream backup fuse or MCB. In practice, this means the RCCB coordinates with a 10 kA-rated MCB upstream — the MCB clears the fault, and the RCCB survives. If your panel's prospective fault current exceeds 1 kA, you need that upstream coordination. No short-time delay on this unit — it trips instantaneously on residual fault.","metaTitle":"Siemens SENTRON 5SM3418-6KK RCCB, 2P, 100 A, 100 mA, Type A","metaDescription":"Siemens SENTRON 5SM3418-6KK RCCB, 2-pole, Type A, 100 A, 100 mA, 230 V AC, 10 kA SCCR. Active production. Quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"70 mm","Width":"36 mm","title":"5SM3418-6KK","Height":"90 mm","Maximum":"45 °C","Minimum":"-25 °C","description":"Residual current operated circuit breaker, 2-pole, type A, In: 100 A, 100 mA, Un AC: 230 V","Number Of Poles":"2","lifecycle_stage":"current","Fastening Method":"DIN rail (REG)","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Product Designation":"RCCB","protection class IP":"IP20, if the distribution board is installed, with connected conductors","Overvoltage Category":"III","Design Of The Product":"Instantaneous","Product Feature Silicon-Free":"Yes","Short-Circuit Current Rating":"10 kA","Number Of Modular Width Units":"2","Position Of Power Supply Cord":"top or bottom","according to EN 60898 rated value":"1 kA","according to IEC 61008-1 rated value":"1 kA","Switching Function Short-Term Delayed":"No","Value Range Of The Operating Frequency":"50 Hz","value range of the supply voltage at AC":"230 V","Ambient Temperature During Storage Minimum":"-40 °C","Value Range Of The Supply Voltage Frequency":"50 Hz","Supply Voltage For Testing Equipment Minimum":"100 V","Mechanical Service Life (Operating Cycles) Typical":"10 000","Product Extension Installable Supplementary Devices":"Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/00cc3b4dfda7d982c8ea2684c55a535c.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=258877&mlfb=5SM3418-6KK"},"ai":{"faq":[{"question":"What is the difference between the 5SM3418-6KK and a standard MCB like the 5SL6550-7BB?","answer":"The 5SM3418-6KK is an RCCB (residual current protection) rated 100 A / 100 mA Type A, while the 5SL6550-7BB is a miniature circuit breaker (MCB) rated 50 A with a C-curve trip characteristic. They serve different functions: the RCCB detects earth leakage; the MCB protects against overload and short circuit. They are often used together in a panel — the MCB upstream and the RCCB downstream — but they are not direct substitutes."},{"question":"Where can I buy the 5SM3418-6KK?","answer":"The 5SM3418-6KK is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What compliance documentation is available for the 5SM3418-6KK?","answer":"The 5SM3418-6KK is designed and tested to EN 60898 and IEC 61008-1, with a 1 kA breaking capacity per those standards. As a Siemens SENTRON product, it carries CE marking and is manufactured under Siemens' quality system; RoHS and REACH declarations are standard for the SENTRON range."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SM3418-6KK","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/5SM3418-6KK 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}}