{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2125-7MQ36-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2125-7MQ36-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2125-7MQ36-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2125-7MQ36-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2125-7MQ36-0AA0, molded case circuit breaker, motor protection version, 3-pole, 25 A rated continuous current (Iu), ETU860M overcurrent release, 330 kA interrupting capacity at 240 V AC.","salesMarkdown":"## SENTRON 3VA2125-7MQ36-0AA0 — motor protection MCCB with ETU860M release The Siemens 3VA2125-7MQ36-0AA0 is a 3-pole SENTRON molded case circuit breaker (MCCB) configured for motor protection, carrying a rated continuous current (Iu) of 25 A that holds flat from 40 °C through 70 °C ambient — no derating needed across that band. Interrupting capacity reaches 330 kA at 240 V AC, 242 kA at 415 V and 440 V, and 187 kA at 500 V, dropping to 3.8 kA at 690 V. This is the motor-protection variant, so the trip curve and release logic are tuned for motor-start inrush rather than general distribution loads. Communication function is onboard, so it can integrate with higher-level monitoring systems for status and trip data. Maximum power loss is 10 W, manageable in a ventilated enclosure. ## Operating power and endurance Rated operating power in AC-3 duty (motor switching) is 5.5 kW at 230 V and 11 kW at 400 V.","metaTitle":"Siemens 3VA2125-7MQ36-0AA0 SENTRON MCCB, 25 A, Motor Protect","metaDescription":"Siemens SENTRON 3VA2125-7MQ36-0AA0 molded case circuit breaker, 25 A rated continuous current, motor protection version with ETU860M release, 330 kA at 240 V. Current production. A","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":"330 kA","at 415 V":"242 kA","at 440 V":"242 kA","at 500 V":"187 kA","at 690 V":"3.8 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":"Motor protection","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"20 000","Communication Function":"Yes","Phase failure detection":"Yes","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Power loss [W] / maximum":"10 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-40 °C","Other Measurement Function":"Yes","Rated continuous current Iu":"25 A","Rated insulation voltage Ui":"800 V","Ground fault monitoring version":"Summation current formation L-conductor","Design of the overcurrent release":"ETU860M","Protection class IP / on the front":"IP40","Operating power / at AC-3 / at 230 V":"5 500 W","Operating power / at AC-3 / at 400 V":"11 000 W","Reference code / acc. to DIN EN 81346-2":"Q","Adjustable response value time / tr max.":"30","Adjustable response value time / tr min.":"3","Adjustable response value time / tsd max.":"0.03 s","Adjustable response value time / tsd min.":"0.03 s","Product extension / optional / motor drive":"Yes","Adjustable response value current / Ir max.":"25 A","Adjustable response value current / lg max.":"25 A","Adjustable response value current / lg min.":"5 A","Adjustable response value current / li max.":"375 A","Adjustable response value current / li min.":"75 A","Adjustable response value current / lr min.":"10 A","Adjustable response value current / tg max.":"0.8 s","Adjustable response value current / tg min.":"0.05 s","Adjustable response value current / Isd max.":"375 A","Adjustable response value current / Isd min.":"30 A","Ground fault protection can be switched ON/OFF":"Yes","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"0","Protective function of the overcurrent release":"LSIG","Switching capacity class of the circuit breaker":"C","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=569633&mlfb=3VA2125-7MQ36-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2125-7MQ36-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting capacity of 3VA2125-7MQ36-0AA0 at 240 V?","answer":"330 kA at 240 V AC. At 415 V and 440 V it is 242 kA, at 500 V it is 187 kA, and at 690 V it is 3.8 kA."},{"question":"Where can I buy 3VA2125-7MQ36-0AA0 and how is it quoted?","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 — submit an RFQ for a firm quote."},{"question":"What compliance documentation does Siemens provide for 3VA2125-7MQ36-0AA0?","answer":"As a current-production SENTRON MCCB, Siemens typically provides RoHS, REACH, and IEC/UL compliance documentation. Specific certificates are available on request with the RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2125-7MQ36-0AA0","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/3VA2125-7MQ36-0AA0 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}}