{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2125-5HM32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2125-5HM32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2125-5HM32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2125-5HM32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON molded case circuit breaker, 3VA2125-5HM32-0AA0, 3-pole line protection, rated 25 A continuous, interrupting up to 187 kA at 240 V.","salesMarkdown":"It carries a continuous current rating of 25 A across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling — and interrupts faults at 187 kA at 240 V, 121 kA at 415/440 V, and 75.6 kA at 500 V, with a 3.7 kA rating at 690 V. That interrupting capacity covers most industrial service-entrance and sub-feed applications without cascading upstream breakers. ## Panel footprint and integration The 3VA2125-5HM32-0AA0 measures 105 mm wide, 181 mm high, and 86 mm deep — a standard SENTRON 3VA footprint that fits existing 3VA cutouts and busbar systems. The 3-pole body accepts line-side lugs or plug-in bases common to the 3VA platform, so a panel already tooled for a 3VA frame accepts this unit without re-drilling gland plates or re-spacing DIN-rail assemblies. ## Ground-fault monitoring variant This order code includes a summation-current ground-fault monitoring function — the L-conductor summation method — which detects residual currents by summing the phase currents through a common core. It does not include undervoltage release, trip indicator, communication, or voltage-triggered functions, so if your BOM calls for those, this is the wrong variant.","metaTitle":"Siemens 3VA2125-5HM32-0AA0 SENTRON MCCB, 25 A, 3-Pole, 187 k","metaDescription":"Siemens SENTRON 3VA2125-5HM32-0AA0 molded case circuit breaker, 25 A rated, 3-pole, 187 kA interrupting at 240 V. Active 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":"3VA2125-5HM32-0AA0","Height":"181 mm","Maximum":"300 A","Minimum":"38 A","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"121 kA","at 500 V":"75.6 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","description":"circuit breaker 3VA2 IEC frame 160 breaking capacity class M Icu=55kA @ 415V 3-pole, line protection ETU330, LIG, In=25A overload protection Ir=10A...25A short-circuit protection Ii=1.5...12 x In ground-fault protection Ig=0.6... 1 x In, tg=0.1/0.3s nut keeper kit","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":"No","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":"No","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":"ETU330","protection class IP / on the front":"IP40","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":"LIG","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"M","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,"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=73867&mlfb=3VA2125-5HM32-0AA0"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA2125-5HM32-0AA0?","answer":"This MCCB is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ; availability and current pricing are confirmed at quote time."},{"question":"What is 3VA2125-5HM32-0AA0's interrupting capacity at 240 V?","answer":"It is rated 187 kA at 240 V, with 121 kA at 415/440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V."},{"question":"Does this MCCB include ground-fault monitoring?","answer":"Yes, it includes summation-current ground-fault monitoring on the L-conductor. It does not include undervoltage release or communication functions."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2125-5HM32-0AA0","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/3VA2125-5HM32-0AA0 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}}