{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA9214-0RS20","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA9214-0RS20","canonicalUrl":"https://aoctrl.com/siemens/3VA9214-0RS20","factsUrl":"https://aoctrl.com/api/mcp/products/3VA9214-0RS20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON RCD510 Basic, residual current protection module type A, side-mounted, 4-pole, In=250 A, adjustable IΔn 0.03…5 A, adjustable tv 0…3000 ms, for 3VA1 with terminal connection.","salesMarkdown":"The Siemens 3VA9214-0RS20 is a side-mounted residual current protection module — Type A, 4-pole, rated 250 A — designed as an accessory for the 3VA1 molded-case circuit breaker family with terminal connection. It belongs to the SENTRON RCD510 Basic line, meaning it covers the core ground-fault protection function without communication or remote-trip features. Type A detection handles AC sinusoidal and pulsed DC residual currents, which covers most industrial and commercial loads with rectifiers or switching power supplies upstream of the protected circuit. ## What the adjustable settings mean on the line The residual current trip threshold is selectable across seven fixed values: 0.03, 0.05, 0.1, 0.3, 0.5, 1, 3, and 5 A. That range lets you dial in sensitivity from personnel protection (30 mA) up to fire-prevention or equipment-protection levels (5 A) without swapping hardware. The non-tripping time delay is also adjustable: 0, 0.06, 0.15, 0.3, 0.5, 1.0, 2.0, or 3.0 seconds. Setting a delay avoids nuisance tripping on inrush or transient ground-leakage spikes — common on motor feeders or UPS-backed circuits. A pre-alarm indication triggers at 30 % of the set residual current value, giving the maintenance team a heads-up before the RCD trips. The module also supports selectable RCD or monitoring-only mode, so you can log leakage trends without disconnecting the load. Mounts via screw fixing to the side of a 3VA1 breaker — it is not a standalone DIN-rail device. The infeed can enter from the top or bottom of the RCD component, which simplifies bus-bar routing inside the panel. Physical footprint: 170 mm wide, 228 mm high, 70 mm deep. The module is sealable (provision for a lead seal), which matters for utility or metering applications where tamper evidence is required. Because it is an accessory tied to the 3VA1 breaker platform, availability follows that platform's production cadence. The 3VA1 series is Siemens' current-generation MCCB family, so the RCD module should remain available for the foreseeable future.","metaTitle":"Siemens 3VA9214-0RS20 SENTRON RCD Type A, 250 A, 4-Pole","metaDescription":"Siemens 3VA9214-0RS20 SENTRON residual current protection module type A, 250 A rated, 4-pole, adjustable 0.03-5 A. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Breaker Accessories"],"specifications":{"Depth":"70 mm","Width":"170 mm","title":"3VA9214-0RS20","Height":"228 mm","Maximum":"80 °C","Minimum":"-40 °C","description":"residual current device RCD510 Basic RCD type A side mounted rated resid. current 0.03...5A at 50/60Hz adjustable tv 0...3000ms 4-pole In=250A Ue=127-480V accessory for: 3VA1 with terminal connection","Number Of Poles":"4","lifecycle_stage":"current","Fastening Method":"screw fixing","Product Brand Name":"SENTRON","Product Designation":"Accessories","Design Of The Product":"Residual current protection module type A","Product Feature / Sealable":"Yes","protection class IP / on the front":"IP40","Type Of Trip Indicator / Electrical":"Yes","Type Of Trip Indicator / Communication":"No","Response Value / Of The Residual Current":"0.03;0.05;0.1;0.3;0.5;1;3;5","operational current / at AC / rated value":"250 A","Operating Frequency / Rated Value / Maximum":"60 Hz","Product Function / Remote-Controlled Tripping":"No","position / of the infeed / on the RCD component":"Top or bottom","Product Function / Integrated / Alarm Management":"Pre-alarm indication 30%","Set Values / Of The Limit Value Of Not Tripping Time":"0;0.06;0.15;0.3;0.5;1.0;2.0;3.0","product function / selectable RCD or monitoring mode":"Yes","Product Function / Selectable Tripping Characteristic":"No","Type Of Electrical Connection / For Main Current Circuit":"Cable connection of basic breaker","Product Function / Communication With Residual Current Equipment":"No"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/9c2f9c0b63d63697ab54682e36887bc1.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=140156&mlfb=3VA9214-0RS20"},"ai":{"faq":[{"question":"What breakers does the 3VA9214-0RS20 fit?","answer":"It is a side-mounted accessory for the Siemens 3VA1 molded-case circuit breaker family with terminal connection. It is not compatible with other breaker platforms without adapter hardware."},{"question":"What does Type A RCD mean for this module?","answer":"Type A detects both AC sinusoidal residual currents and pulsed DC residual currents. That covers loads with rectifiers, variable-speed drives, switching power supplies, and other non-linear electronics upstream of the protected circuit."},{"question":"Can I adjust the trip sensitivity and time delay?","answer":"Yes. The residual current threshold is selectable among 0.03, 0.05, 0.1, 0.3, 0.5, 1, 3, and 5 A. The non-tripping time delay is adjustable from 0 to 3.0 seconds in eight steps. Both are set via the module's front-panel controls."},{"question":"What compliance documentation is available for 3VA9214-0RS20?","answer":"As a Siemens SENTRON product, it carries CE marking and is designed to relevant IEC/EN standards for residual current protective devices. Specific RoHS, REACH, and UL documentation is available from Siemens upon request or through the product's official documentation portal."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA9214-0RS20","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/3VA9214-0RS20 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}