{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2125-0HN36-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2125-0HN36-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2125-0HN36-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2125-0HN36-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON molded case circuit breaker, 3VA2125-0HN36-0AA0, 25 A rated continuous current, ETU350 electronic trip unit, 3-pole, 440 kA interrupting capacity at 415 V AC, line protection design.","salesMarkdown":"The Siemens SENTRON 3VA2125-0HN36-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated for 25 A continuous current, built around the ETU350 electronic trip unit. The 440 kA interrupting capacity at 415 V AC tells you it can clear a fault up to that level without the arc re-striking or the case rupturing; at 690 V AC it still holds 187 kA. That's a high-rupturing-capacity breaker suited for large distribution panels or transformer secondaries where fault currents run high. ## Ratings that matter for the panel The 25 A rating holds flat from 40 °C all the way to 70 °C — no derating curve to chase in a warm enclosure. Insulation voltage is rated 800 V, operating voltage 690 V AC, so it's comfortable on 480 V or 600 V class systems. ## Footprint and panel fit Dimensions are 86 mm deep, 105 mm wide, 181 mm tall. That's a standard 3-pole MCCB footprint for the SENTRON 3VA frame size — it bolts into a mounting plate or clips onto a DIN rail (the evidence doesn't specify the mounting method, but the 3VA family supports both).","metaTitle":"Siemens 3VA2125-0HN36-0AA0 SENTRON MCCB, 25 A, ETU350, 440 k","metaDescription":"Siemens SENTRON 3VA2125-0HN36-0AA0 molded case circuit breaker, 25 A continuous, ETU350 electronic trip, 440 kA at 415 V. Current lifecycle. Sourced to order against 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":"105 mm","title":"3VA2125-0HN36-0AA0","Height":"181 mm","Maximum":"300 A","Minimum":"38 A","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, line protection ETU350, LSI, In=25A overload protection Ir=10A... 25A short circuit protection Isd=1,5...10xIr, Ii=12xIn cable connection","Trip Indicator":"No","Number Of Poles":"3","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Design Of The Product":"Line protection","Communication Function":"No","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":"No","Ground-Fault Monitoring Version":"Without","Continuous Current / Rated Value":"25 A","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"ETU350","protection class IP / on the front":"IP40","Product Function / Grounding Protection":"No","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":"LSI","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=1417440&mlfb=3VA2125-0HN36-0AA0"},"ai":{"faq":[{"question":"What is the interrupting capacity of this MCCB?","answer":"440 kA at 415 V AC and 187 kA at 690 V AC."},{"question":"What trip unit does the 3VA2125-0HN36-0AA0 use?","answer":"It uses the ETU350 electronic trip unit, designed for line protection (overload and short-circuit)."},{"question":"Where can I buy the 3VA2125-0HN36-0AA0 and get current pricing?","answer":"This part is sourced to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2125-0HN36-0AA0","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/3VA2125-0HN36-0AA0 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}}