{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SV3621-4","brand":"Siemens","brandSlug":"siemens","productSlug":"5SV3621-4","canonicalUrl":"https://aoctrl.com/siemens/5SV3621-4","factsUrl":"https://aoctrl.com/api/mcp/products/5SV3621-4","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SV3621-4, 2-pole Type B short-time delayed RCCB, In 16 A, IΔn 300 mA, Un AC 230 V, 10 kA SCCR, DIN rail mount.","salesMarkdown":"The Siemens SENTRON 5SV3621-4 is a 2-pole residual current operated circuit breaker (RCCB) rated 16 A with 300 mA sensitivity, Type B characteristic, short-time delayed, for 230 V AC supply. Type B detection covers AC, pulsating DC, and smooth DC residual currents up to 1 kHz — the right choice when variable-speed drives, UPS systems, or EV chargers are downstream and a standard Type A would miss the DC component. Supply voltage for the test circuit spans 70–250 V AC, 50/60 Hz, meaning the internal test button and the SIGRES function stay operational across a wide mains range. ## Deployment context The top or bottom supply feed (top preferred when the SIGRES function must remain active in the switched-off state) gives the installer flexibility when busbar routing is tight. Silicon-free construction suits environments where outgassing would contaminate coatings or optics.","metaTitle":"Siemens 5SV3621-4 SENTRON RCCB, Type B, 16A, 300mA, 2-Pole","metaDescription":"Siemens 5SV3621-4 SENTRON RCCB, 2-pole Type B short-time delayed, 16A rated, 300mA sensitivity, 10kA 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":"72 mm","Height":"90 mm","Maximum":"45 °C","Minimum":"-25 °C","Grid Spacing":"60 mm","Number Of Poles":"2","lifecycle_stage":"current","Fastening Method":"DIN rail (REG)","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Product Variations":"SIGRES","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":"70-250 V","Ambient Temperature During Storage Minimum":"-40 °C","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":"0.5 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/d8d819a96cc320830a385c5ac68c657e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=810550&mlfb=5SV3621-4","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SV3621-4/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between 5SV3621-4 and 5SL4363-7?","answer":"The 5SL4363-7 is a 3-pole miniature circuit breaker (MCB) with C-curve trip characteristic, not an RCCB. The 5SV3621-4 is a 2-pole Type B RCCB for residual current protection. They serve different protective functions and are not drop-in substitutes; a panel specified for one cannot simply accept the other without rewiring the protection scheme."},{"question":"What is the depth of 5SV3621-4?","answer":"The depth is 70 mm, which matches the installation depth — it sits flush with the DIN rail profile in a standard enclosure."},{"question":"Where can I buy 5SV3621-4 and get current pricing?","answer":"The 5SV3621-4 is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commercial offer."},{"question":"What compliance documentation does Siemens provide for 5SV3621-4?","answer":"The part carries the SENTRON brand and is designed per IEC 61008-1. It is rated for overvoltage category III and IP20 with connected conductors. Specific RoHS/REACH/UL declarations are available from the manufacturer upon request through the distribution channel."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SV3621-4","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/5SV3621-4 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}}