{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2125-0MQ36-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2125-0MQ36-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2125-0MQ36-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2125-0MQ36-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2 series, molded case circuit breaker (MCCB), 3-pole, 25 A, ETU860M electronic trip unit, 440 kA breaking capacity at 415 V, adjustable trip classes 10A–30.","salesMarkdown":"Its ETU860M electronic trip unit gives you adjustable trip classes (10A, 10/10E, 20/20E, 30/30E) so you can match the thermal curve to the motor start profile — a 10E class for quick-start pumps, a 30 class for high-inertia conveyors that need a longer ramp. Phase failure detection and ground-fault monitoring (summation current formation on the L-conductor) are built into the ETU860M, so you don't need a separate ground-fault relay for most motor branch circuits. Communication function is present, which means the trip unit can report status and events over the SENTRON bus system for integration into a plant monitoring scheme. The 0.5 W maximum power loss is negligible for enclosure thermal calculations — no forced ventilation required for this single unit. Wire the line and load lugs per the terminal markings; the ETU860M draws its power from the internal current transformers, so no auxiliary supply is needed for the trip unit to function.","metaTitle":"Siemens 3VA2125-0MQ36-0AA0 SENTRON MCCB, 25 A, 3-Pole, ETU86","metaDescription":"Siemens 3VA2125-0MQ36-0AA0 SENTRON molded case circuit breaker, 25 A continuous, 3-pole, ETU860M electronic trip unit. 440 kA at 415 V. Current 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":"3VA2125-0MQ36-0AA0","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 cable 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":"double-sided box terminal","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=1417771&mlfb=3VA2125-0MQ36-0AA0"},"ai":{"faq":[{"question":"Where can I buy 3VA2125-0MQ36-0AA0 and get current pricing?","answer":"This part is sourced and quoted to order through independent distribution channels. Submit an RFQ for current availability and pricing — confirmed at quote time."},{"question":"What is the breaking capacity of this MCCB?","answer":"The 3VA2125-0MQ36-0AA0 is rated 440 kA at 415 V and 187 kA at 690 V, giving substantial fault-current headroom for most industrial distribution systems."},{"question":"What trip classes are available on the ETU860M?","answer":"The ETU860M supports adjustable trip classes 10A, 10/10E, 20/20E, and 30/30E, covering motor start profiles from quick-start pumps to high-inertia loads."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2125-0MQ36-0AA0","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/3VA2125-0MQ36-0AA0 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}}