{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1125-4GF46-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1125-4GF46-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1125-4GF46-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1125-4GF46-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1125-4GF46-0AA0, molded case circuit breaker, 4-pole, 25 A, TM240 release, 121 kA at 240 V, 76 kA at 415 V.","salesMarkdown":"Four poles, line protection version, no communication module. At 240 V this breaker clears 121 kA; at 415 V it's rated for 76 kA. Those numbers drop to 53 kA at 440 V and 11.9 kA at 500 V or 690 V. For a panel engineer setting up a selective coordination study, the high 240 V figure means it can sit upstream of smaller branch breakers on a 240 V distribution and still maintain selectivity — the upstream breaker stays closed for faults the downstream device clears, as long as the let-through energy is within the downstream breaker's withstand. ## Thermal derating and continuous current Insulation voltage rated at 800 V, max DC operational voltage 600 V. Four-pole width is standard for a 4P MCCB in this frame size. Optional motor drive available for remote tripping or re-closing applications. ## Operating environment Storage range is wider: -40 °C to 80 °C.","metaTitle":"Siemens 3VA1125-4GF46-0AA0 SENTRON MCCB, 25 A, 4-Pole, 121 k","metaDescription":"Siemens 3VA1125-4GF46-0AA0 SENTRON molded case circuit breaker. 25 A continuous, 4-pole, TM240 release. Breaking capacity 121 kA at 240 V. Current 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":"70 mm","Width":"101.6 mm","Height":"130 mm","at 240 V":"121 kA","at 415 V":"76 kA","at 440 V":"53 kA","at 500 V":"11.9 kA","at 690 V":"11.9 kA","at 40 °C":"25 A","at 45 °C":"25 A","at 50 °C":"25 A","at 55 °C":"24 A","at 60 °C":"24 A","at 65 °C":"23 A","at 70 °C":"23 A","Depth [in]":"2.8 in","Width [in]":"4 in","Height [in]":"5.1 in","Number of poles":"4","Product version":"Line protection","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Power loss [W] / maximum":"8.5 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"25 A","Rated insulation voltage Ui":"800 V","Ground fault monitoring version":"Without","Design of the overcurrent release":"TM240","Design of short-circuit protection":"For switching power values in DC networks, see the 3VA molded case circuit breaker device manual; link to be found under Service & Support in the last chapter","Protection class IP / on the front":"IP40","Design of the N-conductor protection":"100%","Reference code / acc. to DIN EN 81346-2":"Q","Max. rated operational voltage Ue with DC":"600 V","Product extension / optional / motor drive":"Yes","Adjustable response value current / lg min.":"25 A","Adjustable response value current / li max.":"320 A","Adjustable response value current / li min.":"160 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"0","Protection Function Of The Overcurrent Release":"LI","Switching capacity class of the circuit breaker":"S","Max. rated operational current of the frame size":"160 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Mechanical service life (switching cycles) / typical":"20 000","Arrangement of electrical connectors / for main current circuit":"Front terminal","Type of connectable conductor cross-section, round conductor terminal, stranded":"1 x (1.5 - 70 mm²)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=316157&mlfb=3VA1125-4GF46-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1125-4GF46-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA1125-4GF46-0AA0 at 240 V?","answer":"121 kA at 240 V, 76 kA at 415 V, 53 kA at 440 V, and 11.9 kA at both 500 V and 690 V."},{"question":"Where can I buy 3VA1125-4GF46-0AA0 and how is it quoted?","answer":"Sourced to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1125-4GF46-0AA0","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/3VA1125-4GF46-0AA0 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}}