{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2125-8HM32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2125-8HM32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2125-8HM32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2125-8HM32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2125-8HM32-0AA0, molded case circuit breaker, line protection, 3-pole, 25 A, ETU330 electronic trip, 440 kA at 240 V, 105 x 86 x 181 mm.","salesMarkdown":"The interrupting capacity hits 440 kA at 240 V and 330 kA at 415 V and 440 V, dropping to 220 kA at 500 V and 52.5 kA at 690 V. That kind of headroom means it clears high-fault scenarios without cascading upstream — selectivity stays intact even on a stiff utility feed. Front-side IP40 keeps dust out of the mechanism in a clean panel environment; the enclosure is sized at 105 mm wide, 86 mm deep, 181 mm tall — standard 3-pole MCCB footprint for DIN-rail or screw-mount integration. ## Integration and mounting notes Mounts on DIN rail or via the screw-mount lugs that come with the frame. The front IP40 rating means it can go in a ventilated enclosure without a separate cover over the breaker face. Optional motor drive is available for remote tripping or re-closing schemes.","metaTitle":"Siemens 3VA2125-8HM32-0AA0 SENTRON MCCB, 25 A, 440 kA","metaDescription":"Siemens SENTRON 3VA2125-8HM32-0AA0 molded case circuit breaker, 3-pole, 25 A, ETU330, 440 kA at 240 V. Current lifecycle. Quoted 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","Height":"181 mm","at 240 V":"440 kA","at 415 V":"330 kA","at 440 V":"330 kA","at 500 V":"220 kA","at 690 V":"52.5 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","Trip Indicator":"No","Number Of Poles":"3","Product version":"Line protection","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","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","rated insulation voltage Ui":"800 V","Courant permanent assigné Iu":"25 A","Ground-Fault Monitoring Version":"Summation current formation L-conductor","Design Of The Overcurrent Release":"ETU330","protection class IP / on the front":"IP40","reference code / acc. to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"Yes","Adjustable response value current / lg max.":"25 A","Adjustable response value current / lg min.":"15 A","Adjustable response value current / li max.":"300 A","Adjustable response value current / li min.":"38 A","Neutral conductors / upgradeable/retrofittable":"No","Protection Function Of The Overcurrent Release":"LIG","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"L","Max. rated operational current of the frame size":"160 A","Mechanical Service Life (Switching 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","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"25 x 8 mm","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"13 x 1 mm"}},"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=329985&mlfb=3VA2125-8HM32-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2125-8HM32-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting capacity of this MCCB at 240 V?","answer":"440 kA at 240 V, dropping to 330 kA at 415 V, 220 kA at 500 V, and 52.5 kA at 690 V. This gives generous selectivity headroom for most industrial service-entrance or feeder applications."},{"question":"Where can I buy 3VA2125-8HM32-0AA0 and how is it quoted?","answer":"This MCCB is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no deferred lead time or stock count on this page."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2125-8HM32-0AA0","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/3VA2125-8HM32-0AA0 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}}