{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SV3321-4","brand":"Siemens","brandSlug":"siemens","productSlug":"5SV3321-4","canonicalUrl":"https://aoctrl.com/siemens/5SV3321-4","factsUrl":"https://aoctrl.com/api/mcp/products/5SV3321-4","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SV3321-4 RCCB, 2-pole, Type B, short-time delayed, In: 16 A, IΔn: 30 mA, Un AC: 230 V, 10 kA SCCR, DIN rail mount.","salesMarkdown":"The Siemens SENTRON 5SV3321-4 is a 2-pole residual current circuit breaker (RCCB), Type B, short-time delayed, rated 16 A with a 30 mA trip threshold on 230 V AC. That Type B classification means it catches smooth DC fault currents up to the rated residual — the sort of leakage you get from VFDs, UPS systems, or PV inverters — not just sinusoidal AC. The short-time delay (SIGRES function) lets it ride out transient earth faults that would nuisance-trip a standard instantaneous RCCB, so it's a fit for circuits with surge suppressors or motor drives that generate brief leakage spikes. ## Ratings and deployment The 2-pole design switches both line and neutral, and the supply can land on top or bottom terminals; the SIGRES function keeps the neutral switched even in the off state.","metaTitle":"Siemens 5SV3321-4 SENTRON RCCB, Type B, 16A, 30mA, 2-pole","metaDescription":"Siemens SENTRON 5SV3321-4 RCCB, 2-pole Type B short-time delayed, 16 A, 30 mA, 230 V AC, 10 kA 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/01ec085ebb447d2ab4ea7f64a5fce7aa.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=810534&mlfb=5SV3321-4","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SV3321-4/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SV3321-4 and how do I get a price?","answer":"The 5SV3321-4 is sourced to order against an RFQ through independent distribution. Submit a request for quote (RFQ) to confirm current availability and pricing — no stock count or price is published here."},{"question":"What is 5SV3321-4's listed depth?","answer":"The 5SV3321-4 has a depth of 70 mm. That's the dimension from the DIN rail backplane to the front of the device, excluding any terminal projections."},{"question":"What compliance documentation does this brand provide for 5SV3321-4?","answer":"The 5SV3321-4 is designed to IEC 61008-1 and carries an overvoltage category III rating. It is silicon-free. For specific RoHS, REACH, or UL documentation, the manufacturer's declaration is typically available on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SV3321-4","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/5SV3321-4 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}}