{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2125-0MQ32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2125-0MQ32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2125-0MQ32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2125-0MQ32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2125-0MQ32-0AA0, molded case circuit breaker, 3-pole, 25 A, motor protection design with ETU860M electronic trip unit, adjustable trip class 10A/10/10E/20/20E/30/30E.","salesMarkdown":"## Motor protection MCCB with ETU860M — 25 A, 3-pole The Siemens SENTRON 3VA2125-0MQ32-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated for 25 A continuous current, designed specifically for motor protection applications. It carries an ETU860M electronic overcurrent release with adjustable trip classes (10A, 10/10E, 20/20E, 30/30E), giving you thermal-memory and phase-failure protection for induction motors on conveyors, pumps, and compressors. Breaking capacity reaches 440 kA at 415 V and 187 kA at 690 V — high enough to handle fault currents on large secondary substations or industrial switchboards without cascading upstream breakers. The 105 mm width and 181 mm height fit standard SENTRON 3VA panel cutouts; depth is 86 mm. Rated insulation voltage is 800 V, and the unit operates from -25 °C to 70 °C ambient with no derating of the 25 A rating across the entire temperature range. ## Communication and monitoring functions This MCCB includes a communication function and phase-failure detection as standard.","metaTitle":"Siemens 3VA2125-0MQ32-0AA0 SENTRON MCCB, 25 A, 3-Pole, Motor","metaDescription":"Siemens SENTRON 3VA2125-0MQ32-0AA0 molded case circuit breaker, 25 A continuous, 3-pole, motor protection design with ETU860M release. Active production. Quoted to order.","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","title":"3VA2125-0MQ32-0AA0","Height":"181 mm","Maximum":"30 s","Minimum":"3 s","at 415 V":"440 kA","at 690 V":"187 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","description":"circuit breaker 3VA2 IEC frame 160 breaking capacity class E Icu=200 kA @ 415 V 3-pole motor protection ETU860M, LSIG, In=25A overload protection Ir=10A... 25A short circuit protection Isd=1,2...15xIn, Ii=3...15xIn busbar connection","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":"0.5 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,"stockQuantity":0,"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=1417770&mlfb=3VA2125-0MQ32-0AA0"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA2125-0MQ32-0AA0?","answer":"Submit an RFQ through the storefront. This part is sourced to order through independent distribution; pricing and stock position are confirmed at quote time."},{"question":"What is the closest functional second-source to 3VA2125-0MQ32-0AA0?","answer":"The 3VA2125-8KQ42-0AA0 is a functional peer within the same SENTRON 3VA family. The key difference is the trip unit and accessory configuration — verify the release type and auxiliary contact requirements before substituting. The 3VA2125-0MQ32-0AA0 uses an ETU860M electronic release; the 8KQ42 variant may carry a different release or communication module."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2125-0MQ32-0AA0","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/3VA2125-0MQ32-0AA0 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}}