{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA9323-0RL30","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA9323-0RL30","canonicalUrl":"https://aoctrl.com/siemens/3VA9323-0RL30","factsUrl":"https://aoctrl.com/api/mcp/products/3VA9323-0RL30","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON RCD820 advanced residual current protection module, type A, 3-pole, 400 A rated, adjustable residual current 0.03-30 A, accessory for 3VA2.","salesMarkdown":"The Siemens 3VA9323-0RL30 is a SENTRON RCD820 advanced residual current protection module, Type A, designed as a load-side mounted accessory for 3VA2 molded case circuit breakers. It carries a 400 A rated operational current at AC across 3 poles, with a selectable residual current response from 0.03 A up to 30 A and an adjustable non-tripping time delay from 0 to 10,000 ms. The 400 A rating means this module sits on the load side of a 3VA2 breaker sized for that current class — it's not a standalone device but a bolt-on residual current block for the SENTRON platform. The adjustable residual current range of 0.03 to 30 A gives you selectivity: set it at 30 mA for personnel protection on a subfeed, or dial up to several amps for an equipment-grounding alarm on a main. The 10 selectable time delays from instantaneous to 10 seconds let you coordinate downstream RCDs so only the faulted branch trips, not the whole panel. ## Deployment context This module mounts via screw fixing to the 3VA2 breaker, not on a DIN rail — it's a direct busbar connection that bolts onto the load side of the MCCB. The infeed can come from top or bottom, which simplifies busbar routing in a crowded enclosure. At 75 W maximum power loss, it dissipates noticeable heat — allow ventilation clearance around the module, especially when the breaker is running near its 400 A rating. ## Signal and communication features This RCD820 includes both an electrical trip indicator and a communication trip indicator, so you get a local flag on the module plus a remote signal for the PLC or BMS. It supports remote-controlled tripping and communication with upstream residual current monitoring equipment. The integrated alarm management provides a pre-alarm at 30% and 60% of the set residual current threshold — useful for predictive maintenance before a nuisance trip takes a line down. The module can operate in selectable RCD or monitoring mode, meaning you can configure it to trip on fault or simply alarm without disconnecting the load. ## Environmental and physical constraints The module spans 138 mm wide, 150 mm high, and 110 mm deep — account for that depth when planning gland plate clearance behind the breaker. The housing is sealable for tamper-proofing after commissioning.","metaTitle":"Siemens 3VA9323-0RL30 SENTRON RCD820, 400 A, 3-Pole, Type A","metaDescription":"Siemens 3VA9323-0RL30 SENTRON RCD820 residual current device, 400 A rated, 3-pole, Type A, adjustable 0.03-30 A. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Breaker Accessories"],"specifications":{"Depth":"110 mm","Width":"138 mm","Height":"150 mm","Maximum":"80 °C","Minimum":"-40 °C","Number Of Poles":"3","lifecycle_stage":"current","Fastening Method":"screw fixing","Product Brand Name":"SENTRON","Product Designation":"Accessories","Design Of The Product":"Residual current protection module type A","power loss [W] / maximum":"75 W","Product Feature / Sealable":"Yes","protection class IP / on the front":"IP40","Type Of Trip Indicator / Electrical":"Yes","Type Of Trip Indicator / Communication":"Yes","Response Value / Of The Residual Current":"0.03;0.05;0.1;0.3;0.5;1;3;5;10;30","operational current / at AC / rated value":"400 A","Operating Frequency / Rated Value / Maximum":"60 Hz","Product Function / Remote-Controlled Tripping":"Yes","position / of the infeed / on the RCD component":"Top or bottom","Product Function / Integrated / Alarm Management":"Pre-alarm indication 30% and 60%","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;5.0;10.0","product function / selectable RCD or monitoring mode":"Yes","Product Function / Selectable Tripping Characteristic":"No","Type Of Electrical Connection / For Main Current Circuit":"busbar connection","Product Function / Communication With Residual Current Equipment":"Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=468661&mlfb=3VA9323-0RL30","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA9323-0RL30/alternatives.json"},"ai":{"faq":[{"question":"What is 3VA9323-0RL30 used for?","answer":"It is a SENTRON RCD820 residual current protection module, Type A, rated 400 A, 3-pole, designed as a load-side accessory for 3VA2 molded case circuit breakers. It provides adjustable earth leakage protection with selectable trip thresholds from 0.03 A to 30 A and time delays up to 10 seconds."},{"question":"Where can I buy 3VA9323-0RL30?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time."},{"question":"What compliance documentation does Siemens provide for 3VA9323-0RL30?","answer":"As a SENTRON series product, it carries CE marking for the European market and is designed to IEC/EN 60947-2 Annex B requirements for residual current devices. Specific RoHS, REACH, and UL documentation is available from Siemens upon request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA9323-0RL30","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/3VA9323-0RL30 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}}