{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2125-7KQ32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2125-7KQ32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2125-7KQ32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2125-7KQ32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2125-7KQ32-0AA0, molded case circuit breaker, 3-pole, 25 A rated continuous, 330 kA interrupting at 240 V AC, line protection design with communication function.","salesMarkdown":"At 415 V and 440 V it still manages 242 kA, dropping to 187 kA at 500 V, and 3.7 kA at 690 V. That's unusual for an MCCB at this frame size; most start rolling off above 40 °C. Dimensions are 181 mm high, 105 mm wide, 86 mm deep — a standard SENTRON 3VA frame that drops into existing 3-pole MCCB mounting bases. No panel rework needed if you're swapping from another 3VA series unit at the same pole count. Maximum power dissipation is only 0.6 W, so thermal crowding inside a sealed enclosure is negligible. Storage range of -40 to 80 °C and operating range of -25 to 70 °C cover most indoor and outdoor cabinet environments. ## Protection and communication features This is a line-protection design (not motor or feeder), with a built-in communication function for remote monitoring or integration into a BMS. No undervoltage release and no trip indicator on this variant. The adjustable current range spans 38 A to 300 A, so the 25 A continuous rating is set by the fixed trip unit — the adjustment range applies to the electronic trip curve, not the continuous amp rating.","metaTitle":"Siemens 3VA2125-7KQ32-0AA0 SENTRON MCCB, 25 A, 3-Pole, 330 k","metaDescription":"Siemens SENTRON 3VA2125-7KQ32-0AA0 molded case circuit breaker, 25 A rated, 3-pole, 330 kA interrupting at 240 V. Active production, sourced to order. Request 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":"300 A","Minimum":"38 A","at 240 V":"330 kA","at 415 V":"242 kA","at 440 V":"242 kA","at 500 V":"187 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":"15 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":"Line protection","Communication Function":"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","Design Of The Overcurrent Release":"ETU860","protection class IP / on the front":"IP40","design of the N-conductor protection":"adjustable OFF; 40% to 160%","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":"C","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=389627&mlfb=3VA2125-7KQ32-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2125-7KQ32-0AA0/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2125-7KQ32-0AA0","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/3VA2125-7KQ32-0AA0 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}}