{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2125-6HM46-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2125-6HM46-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2125-6HM46-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2125-6HM46-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2125-6HM46-0AA0, molded-case circuit breaker, 4-pole, 25 A continuous, line protection, 242 kA breaking at 240 V.","salesMarkdown":"It carries a maximum breaking capacity of 242 kA at 240 V, tapering to 187 kA at 415 V and 440 V, 121 kA at 500 V, and 3.7 kA at 690 V — the 690 V figure is the weak leg, so verify your fault level if feeding a 690 V bus. The 86 mm depth and 140 mm width fit standard DIN-rail or panel-mount enclosures; plan for the 181 mm height when selecting gland plates or door clearance. ## Ground-fault and thermal performance This MCCB includes summation-current ground-fault monitoring on the L+N conductors — it senses imbalance between line and neutral, not a separate ground-fault sensor. That makes it suitable for solidly-grounded TN systems where you want earth-leakage detection without a dedicated GFCI module.","metaTitle":"Siemens 3VA2125-6HM46-0AA0 SENTRON MCCB, 25 A, 4-Pole, 242 k","metaDescription":"Siemens 3VA2125-6HM46-0AA0 SENTRON molded-case circuit breaker, 25 A continuous, 4-pole, line protection, 242 kA breaking at 240 V. Current lifecycle. Sourced 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":"140 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]":"5.51 in","Height [In]":"7.13 in","Initial Value":"15 A","Trip Indicator":"No","Number Of Poles":"4","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 + N 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","design of the N-conductor protection":"adjustable OFF; 100%","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":"double-sided box terminal","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=348679&mlfb=3VA2125-6HM46-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2125-6HM46-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings of 3VA2125-6HM46-0AA0?","answer":"Continuous current 25 A, 4-pole, breaking capacity 242 kA at 240 V, 187 kA at 415 V, 121 kA at 500 V, 3.7 kA at 690 V. Rated insulation voltage 800 V. Depth 86 mm, width 140 mm, height 181 mm."},{"question":"Where can I buy 3VA2125-6HM46-0AA0?","answer":"This part is sourced and quoted 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":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2125-6HM46-0AA0","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/3VA2125-6HM46-0AA0 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}}