{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SM3615-6KK","brand":"Siemens","brandSlug":"siemens","productSlug":"5SM3615-6KK","canonicalUrl":"https://aoctrl.com/siemens/5SM3615-6KK","factsUrl":"https://aoctrl.com/api/mcp/products/5SM3615-6KK","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON RCCB, 2-pole, type A, 125 A, 300 mA, 230 V AC, 50 Hz, 10 kA SCCR, DIN rail mount, IP20.","salesMarkdown":"## Residual current protection for high-current feeders The Siemens SENTRON 5SM3615-6KK is a 2-pole residual current circuit breaker (RCCB) rated 125 A with a 300 mA trip threshold, type A, for 230 V AC 50 Hz systems. The 125 A rating makes this a fast mover for main incomers or sub-feed protection in commercial and industrial distribution boards where standard 63 A or 80 A units won't carry the load. The 300 mA residual sensitivity is the standard for fire protection and general shock prevention in fixed equipment circuits — it's not for personal shock protection (that's 30 mA), but it's the right pick for feeders where nuisance tripping from leakage on long cable runs is a concern. The instantaneous design (no intentional delay) clears faults as fast as the fault current allows, so it's suited for direct feeder protection rather than selective coordination with downstream RCDs. Snaps onto DIN rail (REG) per the standard 36 mm width, occupying 2 modular width units. Depth is 70 mm, which matches the standard 70 mm installation depth for SENTRON RCCBs — verify gland plate clearance if the enclosure back wall is tight, but this is the common depth for the series.","metaTitle":"Siemens SENTRON 5SM3615-6KK RCCB, Type A, 125 A, 300 mA, 2-P","metaDescription":"Siemens SENTRON 5SM3615-6KK RCCB, 2-pole, type A, 125 A, 300 mA, 230 V AC, 50 Hz, 10 kA SCCR, DIN rail mount, IP20, active production, available to order.","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","Height":"90 mm","Maximum":"45 °C","Minimum":"-25 °C","Number Of Poles":"2","lifecycle_stage":"current","Fastening Method":"DIN rail (REG)","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Maximum Permissible":"75 °C","Minimum Permissible":"-40 °C","Operating Frequency":"50 Hz","Product Designation":"RCCB","at AC / rated value":"125 A","protection class IP":"IP20, if the distribution board is installed, with connected conductors","Overvoltage Category":"III","Design Of The Product":"Instantaneous","Residual Current Type":"A","Short-Circuit Current Rating":"10 kA","Number Of Modular Width Units":"2","Product Feature / Silicon-Free":"Yes","acc. to EN 60898 / rated value":"1.25 kA","For Testing Equipment / Minimum":"100 V","Position / Of Power Supply Cord":"top or bottom","Tripping Fault Current / Rated Value":"300 mA","Supply Voltage Frequency / Rated Value":"50 Hz","Surge Current Resistance / Rated Value":"1 kA","according to IEC 61008-1 / rated value":"1.25 kA","Switching Function / Short-Term Delayed":"No","size of installation devices / acc. to DIN 43880":"1","Mechanical Service Life (Switching Cycles) / Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/e2f6bf7085dd3623569dff52761d83d2.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=433899&mlfb=5SM3615-6KK","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SM3615-6KK/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source for 5SM3615-6KK?","answer":"The Siemens 5SU9354-7KK20 is a close peer — also a 2-pole, type A, instantaneous RCCB on a 36 mm DIN-rail footprint with 70 mm installation depth. The key difference is that the 5SU9354-7KK20 is an RCBO (RCD + MCB combined) rated 230/240 V with a C-curve overcurrent characteristic, whereas the 5SM3615-6KK is a plain RCCB rated 125 A with no overcurrent protection. They share the same mounting footprint and terminal positions, so a panel laid out for one can accept the other without rewiring the busbar, but the circuit function is different — the RCBO adds overcurrent protection, the RCCB does"},{"question":"Where can I buy 5SM3615-6KK?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time."},{"question":"What compliance documentation does Siemens provide for 5SM3615-6KK?","answer":"The part carries CE marking per the Low Voltage Directive and is designed to IEC 61008-1 and EN 60898 standards. It is silicon-free. Specific RoHS, REACH, and UL documentation should be requested at time of order; the manufacturer provides declarations of conformity for EU markets."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SM3615-6KK","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/5SM3615-6KK 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}}