{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SV3642-8","brand":"Siemens","brandSlug":"siemens","productSlug":"5SV3642-8","canonicalUrl":"https://aoctrl.com/siemens/5SV3642-8","factsUrl":"https://aoctrl.com/api/mcp/products/5SV3642-8","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON selective RCCB, 4-pole type A, 25 A rated current, 300 mA residual, 400 V AC, 10 kA SCCR, 4 MW DIN rail.","salesMarkdown":"## Selective RCCB for feeder discrimination The Siemens 5SV3642-8 is a 4-pole selective residual current circuit breaker (RCCB) from the SENTRON family, rated 25 A with a 300 mA residual operating current at 400 V AC. The selective design (time-delayed) means it coordinates with downstream instantaneous RCDs — in a fault, the downstream device trips first, keeping this unit closed so only the faulted branch drops, not the whole sub-distribution board. That makes it the right choice for a feeder or main switch position where you need discrimination from branch RCDs. Type A detection covers AC sinusoidal and pulsating DC residual currents — the common profile for single-phase rectified loads like switching power supplies, LED drivers, and variable-speed drives. For a 4-pole device on a 400 V three-phase supply, that covers the full mixed-load panel. Depth is 70 mm, which matches the 70 mm installation depth — no extra projection beyond the rail. The 60 mm grid spacing aligns with standard distribution board cutouts. Mounting position is unrestricted, so it can go in any orientation within the enclosure. ## Short-circuit and thermal performance Rated short-circuit current withstand is 10 kA per IEC 61008-1, with a permissible series fuse short-circuit current of 100 A maximum. Power dissipation per pole is 0.8 W in hot operating state — negligible for enclosure thermal budgeting. The -25 °C lower limit covers most unheated utility rooms; if the panel sits in a freezer or exterior enclosure in a cold climate, verify the ambient stays above that.","metaTitle":"Siemens 5SV3642-8 SENTRON RCCB, 25 A, 300 mA, 4-pole, select","metaDescription":"Siemens 5SV3642-8 SENTRON selective RCCB, 4-pole type A, 25 A, 300 mA, 400 V AC, 10 kA SCCR, IP20. 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":"4","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":"Selective","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","according to IEC 61008-1 rated value":"0.8 kA","Switching Function Short-Term Delayed":"No","Value Range Of The Operating Frequency":"50/60 Hz","value range of the supply voltage at AC":"230/400 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","Short-Circuit Current Of Series Fuse Maximum Permissible":"100 A","for rated value of the current at AC in hot operating state per pole":"0.8 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$48.26","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=604199&mlfb=5SV3642-8","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SV3642-8/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between this selective RCCB and a standard instantaneous RCCB?","answer":"The selective (time-delayed) design means it withstands a brief residual current without tripping, allowing a downstream instantaneous RCD to clear the fault first. This provides discrimination — only the faulted branch drops, not the upstream feeder. The 5SV3642-8 has no short-term delayed switching function; its selectivity comes from the intentional delay characteristic built into the selective design."},{"question":"Where can I buy the 5SV3642-8?","answer":"The 5SV3642-8 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 is available for the 5SV3642-8?","answer":"The device carries a silicon-free designation and is designed to IEC 61008-1. Overvoltage category III. For specific compliance documentation (RoHS, REACH, UL, IEC declarations), these are provided with the shipment from the authorized supply chain."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SV3642-8","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/5SV3642-8 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}}