{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SV3646-4KK14","brand":"Siemens","brandSlug":"siemens","productSlug":"5SV3646-4KK14","canonicalUrl":"https://aoctrl.com/siemens/5SV3646-4KK14","factsUrl":"https://aoctrl.com/api/mcp/products/5SV3646-4KK14","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON RCCB, 4-pole, Type B+, short-time delayed, In: 63 A, 300 mA, Un AC: 400 V, 10 kA SCCR, DIN rail mount, IP20.","salesMarkdown":"The Siemens 5SV3646-4KK14 is a 4-pole residual current circuit breaker (RCCB) from the SENTRON family, rated 63 A at 400 V AC with a 300 mA trip threshold and a Type B+ characteristic. The Type B+ designation means it detects smooth DC residual currents, AC pulsating currents, and high-frequency AC components — the full spectrum you'd expect from variable-speed drives, UPS systems, and PV inverters. The 300 mA sensitivity is not for personal shock protection (that's 30 mA); it's sized for equipment protection and fire prevention on circuits where leakage from power electronics would nuisance-trip a standard Type A device. Snaps onto DIN rail (REG) in any mounting position — no gravity-dependent orientation. The 4-pole body occupies 4 modular width units at 60 mm grid spacing, so it fills 72 mm of rail width. ## What the short-time delay buys you The short-time delayed switching function means this RCCB tolerates brief surge currents without tripping — useful on circuits with capacitor banks, motor inrush, or transient earth faults from switching events. It's not a selectivity device per se (that's the SENTRON selective RCCB range), but the delay prevents nuisance tripping on circuits where a standard instant-trip RCCB would drop out on a harmless transient. The mechanical service life of 10 000 operating cycles is typical for a switch-disconnector in panel duty; it's not a daily-operating contactor, but it handles periodic isolation and test cycles without issue. Silicon-free construction matters for automotive or electronics manufacturing environments where silicone outgassing can contaminate sensitive contacts or optics.","metaTitle":"Siemens 5SV3646-4KK14 SENTRON RCCB, 4P, 63 A, 300 mA, Type B","metaDescription":"Siemens SENTRON 5SV3646-4KK14 RCCB, 4-pole, 63 A, 300 mA, Type B+, short-time delayed, 10 kA SCCR. Active production. Quoted on request.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"70 mm","Width":"72 mm","Height":"90 mm","Maximum":"45 °C","Minimum":"-25 °C","Grid Spacing":"60 mm","Number Of Poles":"4","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","Product Designation":"RCCB","protection class IP":"IP20, if the distribution board is installed, with connected conductors","Overvoltage Category":"III","Design Of The Product":"Short-time delayed","Product Feature Silicon-Free":"Yes","Short-Circuit Current Rating":"10 kA","Number Of Modular Width Units":"4","Position Of Power Supply Cord":"top or bottom (top for SIGRES function also in switched-off state)","according to IEC 61008-1 rated value":"0.8 kA","Switching Function Short-Term Delayed":"Yes","Value Range Of The Operating Frequency":"50/60 Hz","value range of the supply voltage at AC":"70-440 V","Value Range Of The Supply Voltage Frequency":"50/60 Hz","Supply Voltage For Testing Equipment Minimum":"70 V","Mechanical Service Life (Operating Cycles) Typical":"10 000","Product Extension Installable Supplementary Devices":"Yes","Short-Circuit Current Of Series Fuse Maximum Permissible":"100 A","for rated value of the current at AC in hot operating state per pole":"5 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/ed280646498d532ac59ddeccc41d4200.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=810563&mlfb=5SV3646-4KK14","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SV3646-4KK14/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 5SV3646-4KK14?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the difference between this Type B+ RCCB and the standard Type B?","answer":"The Type B+ characteristic on this SENTRON RCCB covers smooth DC, pulsating AC, and high-frequency AC residual currents — the same detection spectrum as Type B but with a short-time delay that prevents nuisance tripping on transient leakage from power electronics. Standard Type B devices trip instantly; this one holds through brief surges."},{"question":"Will the 5SV3646-4KK14 fit in a panel designed for the 5SL4363-7?","answer":"No — the 5SL4363-7 is a 3-pole miniature circuit breaker (MCB), not an RCCB. The 5SV3646-4KK14 is a 4-pole RCCB with a 72 mm width on 60 mm grid spacing; the 5SL4363-7 is 54 mm wide (3 modular units). The DIN rail footprint and function are different, so a panel designed for the MCB would need rewiring and additional width to accept this RCCB."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SV3646-4KK14","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/5SV3646-4KK14 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}}