{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2125-8HK36-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2125-8HK36-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2125-8HK36-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2125-8HK36-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2125-8HK36-0AA0, molded case circuit breaker, 3-pole, 25 A rated continuous current, line protection version with ETU340 electronic trip unit, breaking capacity 440 kA at 240 V.","salesMarkdown":"Breaking capacity runs from 440 kA at 240 V down to 53 kA at 690 V — that 440 kA figure at 240 V covers high-fault industrial services where the upstream transformer can deliver serious short-circuit current. The ETU340 release is a solid-state trip unit with a fixed time delay tr of 1300 ms (both min and max settings), so it's set for selective coordination downstream: it lets a 25 A branch breaker clear a fault before this main trips. ## Panel integration An optional motor drive (product extension available per the spec) allows remote reset or switching. Communication function is not built in — this is a standalone breaker, no fieldbus module on board.","metaTitle":"Siemens 3VA2125-8HK36-0AA0 SENTRON MCCB, 25 A, 3-Pole, 440 k","metaDescription":"Siemens 3VA2125-8HK36-0AA0 SENTRON molded case circuit breaker, 25 A rated, 3-pole, line protection with ETU340 release. Breaking capacity 440 kA at 240 V. Current production. Quot","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"86 mm","Width":"105 mm","Height":"181 mm","at 240 V":"440 kA","at 415 V":"330 kA","at 440 V":"330 kA","at 500 V":"220 kA","at 690 V":"53 kA","at 40 °C":"25 A","at 45 °C":"25 A","at 50 °C":"25 A","at 55 °C":"25 A","at 60 °C":"25 A","at 65 °C":"25 A","at 70 °C":"25 A","Depth [in]":"3.4 in","Width [in]":"4.1 in","Height [in]":"7.1 in","Number of poles":"3","Product version":"Line protection","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"20 000","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Power loss [W] / maximum":"0.5 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-40 °C","Other Measurement Function":"No","Rated continuous current Iu":"25 A","Rated insulation voltage Ui":"800 V","Ground fault monitoring version":"Without","Design of the overcurrent release":"ETU340","Protection class IP / on the front":"IP40","Reference code / acc. to DIN EN 81346-2":"Q","Adjustable response value time / tr max.":"1300","Adjustable response value time / tr min.":"1300","Product extension / optional / motor drive":"Yes","Adjustable response value current / Ir max.":"25 A","Adjustable response value current / li max.":"375 A","Adjustable response value current / li min.":"375 A","Adjustable response value current / lr min.":"10 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"0","Protective function of the overcurrent release":"ELISA LI","Switching capacity class of the circuit breaker":"L","Max. rated operational current of the frame size":"160 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Type of electrical connection / for main current circuit":"box terminal","Arrangement of electrical connectors / for main current circuit":"Front terminal","Type of connectable conductor cross-section, round conductor terminal, stranded":"1 x (6-120 mm²)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/641a6843e8dc2f758bb6426196efa871.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=372591&mlfb=3VA2125-8HK36-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2125-8HK36-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2125-8HK36-0AA0 and get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit a request for your quantity; availability and current pricing are confirmed at quote time."},{"question":"What is the breaking capacity of 3VA2125-8HK36-0AA0 at different voltages?","answer":"440 kA at 240 V, 330 kA at 415 V and 440 V, 220 kA at 500 V, and 53 kA at 690 V. The 440 kA at 240 V figure is the highest in the range."},{"question":"Does 3VA2125-8HK36-0AA0 support communication or remote operation?","answer":"No built-in communication function. An optional motor drive is available as a product extension for remote switching or reset."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2125-8HK36-0AA0","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/3VA2125-8HK36-0AA0 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}}