{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2125-5MQ32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2125-5MQ32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2125-5MQ32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2125-5MQ32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2125-5MQ32-0AA0, molded case circuit breaker, 3-pole, 25 A, motor protection design, 187 kA breaking capacity at 240 V.","salesMarkdown":"The adjustable overload range (5 A to 25 A) lets you dial in the exact motor FLA without swapping the breaker, a real time-saver during commissioning. The ground-fault monitoring uses summation current sensing on the line conductors, which catches leakage without a separate GFCI module. The communication function (listed as present) allows integration with a higher-level control system for remote monitoring or trip indication — check the exact protocol support in the full datasheet. Power loss is minimal at 0.6 W max, so heat buildup in a dense panel is not a concern.","metaTitle":"Siemens 3VA2125-5MQ32-0AA0 SENTRON MCCB, 25 A, 3-Pole, Motor","metaDescription":"Siemens 3VA2125-5MQ32-0AA0 SENTRON molded case circuit breaker, 25 A rated, 3-pole, motor protection design, 187 kA at 240 V. Active production, sourced to order. Request a quote.","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","Maximum":"30 s","Minimum":"3 s","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"121 kA","at 500 V":"75.6 kA","at 690 V":"3.7 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]":"3.39 in","Width [In]":"4.13 in","Height [In]":"7.13 in","Initial Value":"5 A","Trip Indicator":"No","Number Of Poles":"3","Voltage Trigger":"No","lifecycle_stage":"current","Full-Scale Value":"25 A","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Design Of The Product":"Motor protection","Communication Function":"Yes","Phase Failure Detection":"Yes","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"0.6 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"Yes","Ground-Fault Monitoring Version":"Summation current formation L-conductor","Continuous Current / Rated Value":"25 A","Insulation Voltage / Rated Value":"800 V","adjustable trip class (Tc CLASS)":"10A, 10/10E, 20/ 20E, 30/30E","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","Product Function / Grounding Protection":"Yes","operating voltage / at AC / rated value":"690 V","reference code / according to IEC 81346-2":"Q","Continuous Current / Rated Value / Maximum":"160 A","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"LSIG","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"E","Mechanical Service Life (Operating Cycles) / Typical":"25 000","Type Of Electrical Connection / For Main Current Circuit":"on both sides nut keeper kit","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front terminal"}},"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=569628&mlfb=3VA2125-5MQ32-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2125-5MQ32-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional alternative to 3VA2125-5MQ32-0AA0?","answer":"The closest functional second-source is the 5SQ2370-2YA05 series, which also offers a 3-pole MCCB with adjustable overload in a similar current class. However, the 3VA2125-5MQ32-0AA0 includes phase failure detection and communication capability that may not be present on the 5SQ2370-2YA05 — verify the feature set before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2125-5MQ32-0AA0","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/3VA2125-5MQ32-0AA0 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}}