{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2125-6HM32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2125-6HM32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2125-6HM32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2125-6HM32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON molded case circuit breaker, 3VA2125-6HM32-0AA0, 3-pole, 25 A rated continuous current, 242 kA breaking capacity at 240 V AC, line protection design with ground-fault monitoring.","salesMarkdown":"The Siemens SENTRON 3VA2125-6HM32-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated for 25 A continuous current, designed specifically for line protection — meaning it guards feeder cables and distribution buswork against overloads and short circuits, not motor or branch-circuit loads with high inrush. Its rated insulation voltage of 800 V gives headroom for 690 V systems, and the breaking capacity climbs to 242 kA at 240 V AC — enough to clear a high-fault utility feed without cascading upstream. At 415 V and 440 V it still holds 187 kA; at 500 V it drops to 121 kA. The sharp fall to 3.7 kA at 690 V means this breaker is not intended for primary 690 V distribution — that figure governs the required upstream SCCR for a 690 V panel. ## Ground-fault monitoring and trip characteristics The trip indicator is absent (no mechanical flag), and there is no undervoltage release or communication function — it is a pure thermal-magnetic breaker with ground-fault sensing. The continuous current rating holds flat at 25 A across the entire operating temperature range from -25 °C to 70 °C — no derating needed for elevated ambient temperatures up to 70 °C. At 105 mm wide, 181 mm tall, and 86 mm deep, this 3-pole MCCB fits standard SENTRON mounting bases and DIN-rail adapters. The 86 mm depth (3.39 in) is the critical dimension for enclosure depth selection — verify the door clearance if a rotary handle or extended shaft is planned.","metaTitle":"Siemens 3VA2125-6HM32-0AA0 SENTRON MCCB, 25 A, 3-Pole, 242 k","metaDescription":"Siemens SENTRON 3VA2125-6HM32-0AA0 molded case circuit breaker, 25 A continuous, 3-pole, 242 kA breaking at 240 V. Line protection with ground-fault monitoring. Active production,","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","Maximum":"300 A","Minimum":"38 A","at 240 V":"242 kA","at 415 V":"187 kA","at 440 V":"187 kA","at 500 V":"121 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","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":"H","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,"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=12921&mlfb=3VA2125-6HM32-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2125-6HM32-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2125-6HM32-0AA0 and how do I get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current pricing and availability confirmation."},{"question":"What is the breaking capacity of 3VA2125-6HM32-0AA0 at 415 V?","answer":"187 kA at 415 V AC, matching the rating at 440 V. At 240 V it reaches 242 kA."},{"question":"Does this MCCB include ground-fault protection?","answer":"Yes, it includes ground-fault monitoring via summation current formation on the L-conductor."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2125-6HM32-0AA0","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/3VA2125-6HM32-0AA0 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}}