{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2125-7KQ46-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2125-7KQ46-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2125-7KQ46-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2125-7KQ46-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2125-7KQ46-0AA0, molded case circuit breaker, 4-pole, 25 A continuous, 330 kA breaking at 240 V, line protection with communication and ground-fault monitoring.","salesMarkdown":"Its 330 kA interrupting capacity at 240 V handles high-fault scenarios typical of industrial mains, while the 242 kA rating at 415 V and 440 V covers common European and Asian line voltages. Ground-fault monitoring uses summation current formation on L+N conductors, which simplifies wiring compared to separate CT-based schemes. Communication function is built in, so it can report status to a BMS or PLC without an add-on module. The 140 mm width means it occupies two adjacent 70 mm DIN-rail slots or a dedicated MCCB mounting plate. Plan for the 0.6 W maximum power loss — negligible for thermal budgeting even in a sealed enclosure.","metaTitle":"Siemens 3VA2125-7KQ46-0AA0 SENTRON MCCB, 25 A, 4-Pole, 330 k","metaDescription":"Siemens SENTRON 3VA2125-7KQ46-0AA0 molded case circuit breaker, 25 A continuous, 4-pole, 330 kA at 240 V. Active production, sourced to order. Request RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"86 mm","Width":"140 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]":"5.51 in","Height [In]":"7.13 in","Initial Value":"15 A","Trip Indicator":"No","Number Of Poles":"4","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 + N 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":"double-sided box terminal","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=347308&mlfb=3VA2125-7KQ46-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2125-7KQ46-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2125-7KQ46-0AA0 and what is the lead time?","answer":"This part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm delivery commitment."},{"question":"What is the closest functional second-source for 3VA2125-7KQ46-0AA0?","answer":"The peer MPNs 5SQ2670-2YA06, 5SQ2670-2YA63, and 5SQ2670-2YA16 are functionally similar but verify the exact trip curve, auxiliary contact configuration, and communication protocol against the Siemens unit before substituting."},{"question":"Will 3VA2125-7KQ46-0AA0 drop into a panel specified around 5SQ2670-2YA06?","answer":"The 86 mm depth and 140 mm width of the Siemens unit are close to typical MCCB footprints, but 5SQ2670-2YA06 may have different mounting hole patterns or terminal spacing. A physical fit check is recommended before rewiring."},{"question":"What compliance documentation does this breaker carry?","answer":"As a Siemens SENTRON product, it is designed to meet IEC 60947-2 and UL 489 standards. Specific RoHS, REACH, and CE declarations are available from the manufacturer upon request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2125-7KQ46-0AA0","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/3VA2125-7KQ46-0AA0 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}}