{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SM3616-8KL","brand":"Siemens","brandSlug":"siemens","productSlug":"5SM3616-8KL","canonicalUrl":"https://aoctrl.com/siemens/5SM3616-8KL","factsUrl":"https://aoctrl.com/api/mcp/products/5SM3616-8KL","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SM3 series, 5SM3616-8KL, 2-pole RCCB, type A, selective, In: 63 A, IΔn: 300 mA, Un AC: 230 V, 10 kA, DIN rail.","salesMarkdown":"The selective design (short-time delayed) means it coordinates with downstream RCDs — in a fault, the downstream device trips first, keeping this unit as the backup, which is essential for supply continuity in distribution boards where you need to isolate only the faulty branch. Snaps onto a DIN rail (REG profile) and occupies 2.5 width units (roughly 45 mm). ## Selectivity and coordination — why the 300 mA matters The 300 mA trip threshold and selective characteristic are the key differentiators here. Standard RCCBs (non-selective) trip at 30 mA or 100 mA within milliseconds. This unit is engineered to withstand transient earth faults and let downstream 30 mA devices clear the fault first. That means you can place it as the main incoming RCCB feeding multiple sub-circuits, each with its own 30 mA RCCB, without nuisance tripping on the main. The 10 kA short-circuit current rating (IEC 60947-2) confirms it can handle a hard fault upstream without welding contacts. The 5 kA surge current resistance (8/20 µs impulse) means it survives lightning-induced surges common in industrial mains without degrading. Overvoltage category III (distribution level) is standard for fixed-installation switchgear. Terminals accept solid or stranded conductors from 1.5 mm² up to 25 mm² — covers everything from a 2.5 mm² lighting circuit tail to a 16 mm² main feed. Tightening torque is 2.5 to 3 N·m, typical for screw terminals on this class of device. If your panel uses a right-neutral busbar, you will need the 5SM3616-8KR variant instead. Finger and back-of-hand safe construction (VDE 0660) means no exposed live parts when the front cover is closed.","metaTitle":"Siemens 5SM3616-8KL SENTRON RCCB, 63 A, 300 mA, Type A, Sele","metaDescription":"Siemens SENTRON 5SM3616-8KL 2-pole RCCB, 63 A, 300 mA, type A, selective, 230 V AC, 10 kA SCCR. Current lifecycle stage. Available to order; RFQ for pricing and lead time.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Solid":"1.5 ... 25 mm²","Stranded":"1.5 ... 25 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","Product variations":"N left","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":"Selective","Number of width units":"2.5","Type of fault current":"A","circuit-breaker / Design":"5SM3","Short-circuit current rating":"10 kA","Current / at AC / rated value":"63 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":"5 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=230204&mlfb=5SM3616-8KL","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SM3616-8KL/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between this selective RCCB and a standard 30 mA RCCB?","answer":"The 5SM3616-8KL is a selective (time-delayed) type with a 300 mA trip threshold. It is designed to coordinate with downstream 30 mA RCDs so that only the faulty branch trips, not the main supply. A standard 30 mA RCCB would trip immediately on any earth fault, taking the whole panel down."},{"question":"Where can I buy the 5SM3616-8KL?","answer":"This part is 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 lead time and price."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SM3616-8KL","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/5SM3616-8KL 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}}