{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2125-6HM46-0FJ0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2125-6HM46-0FJ0","canonicalUrl":"https://aoctrl.com/siemens/3VA2125-6HM46-0FJ0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2125-6HM46-0FJ0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2125-6HM46-0FJ0, molded case circuit breaker, 4-pole, 25 A, breaking capacities 242 kA at 240 V / 187 kA at 415 V / 3.75 kA at 690 V, ETU330 overcurrent release, IP40 front.","salesMarkdown":"## What the breaking capacities mean for your panel At 690 V the capacity drops to 3.75 kA, which still covers most industrial motor feeders on a 690 V bus. The 4-pole (3 phases + neutral) construction suits TN or TT systems where neutral protection is required. Above 50 °C it derates linearly: 24.0625 A at 55 °C, 23.125 A at 60 °C, 22.1875 A at 65 °C, and 21.25 A at 70 °C. If your panel internal temperature exceeds 50 °C, size the load accordingly — the thermal curve is already in the spec. The overcurrent release is an ETU330 electronic trip unit (adjustable LSI curves). The breaker also integrates an undervoltage release with leading NO contacts, part number 3VA9908-0BC24, and a ground-fault monitoring function using summation current on L+N. Front protection is IP40; the enclosure should be rated for the environment. Maximum power loss is 1 W.","metaTitle":"Siemens 3VA2125-6HM46-0FJ0 SENTRON MCCB, 25 A, 4P, 242 kA at","metaDescription":"Siemens SENTRON 3VA2125-6HM46-0FJ0 molded case circuit breaker, 25 A, 4-pole, breaking capacity 242 kA at 240 V. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"107 mm","Width":"140 mm","title":"3VA2125-6HM46-0FJ0","Height":"181 mm","at 240 V":"242 kA","at 415 V":"187 kA","at 690 V":"3.75 kA","at 40 °C":"25 A","at 45 °C":"25 A","at 50 °C":"25 A","at 55 °C":"24.0625 A","at 60 °C":"23.125 A","at 65 °C":"22.1875 A","at 70 °C":"21.25 A","description":"CIRCUIT BREAKER 3VA2 IEC FRAME 160 BREAKING CAPACITY CLASS H ICU=85KA @ 415 V 4POLE, LINE PROTECTION ETU330, LIG, IN=25A OVERLOAD PROTECTION IR=10A...25A SHORT CIRCUIT PROTECTION II=1,5...12 X IN NEUTRAL PROTECTION ADJUSTABLE(OFF,100%) GROUNDFAULTPROTECTION IG=0,6... 1 X IN, TG=0,1/0,3S CABLE CONNECTION UNDERVOLTAGE RELEASE (LNO) 120-127 V AC 50/60 HZ 2 AUXILIARY SWITCH 1 TRIP ALARM SWITCH","Trip indicator":"Yes","Number of poles":"4","Product version":"Line protection","Voltage trigger":"No","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"20 000","Undervoltage Release":"No","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Power loss [W] / maximum":"1 W","Auxiliary contact version":"2 auxiliary switches + 1 trip alarm switch HP","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","Of The Supplied Basic Switch":"3VA2125-6HM46-0AA0","Design of the auxiliary release":"Undervoltage release with leading NO contacts (UVR(LNO))","Ground fault monitoring version":"Summation current formation L + N conductor","Of The Integrated Auxiliary Trip":"3VA9908-0BC24","Design of the overcurrent release":"ETU330","Protection class IP / on the front":"IP40","Reference code / acc. to DIN EN 81346-2":"Q","Adjustable response value time / tr max.":"17","Adjustable response value time / tr min.":"0.5","Undervoltage Release With Leading Contact":"Yes","Product extension / optional / motor drive":"Yes","Adjustable response value current / Ir max.":"1 A","Adjustable response value current / lg max.":"1 A","Adjustable response value current / lg min.":"0.6 A","Adjustable response value current / li min.":"1.5 A","Adjustable response value current / lr min.":"0.4 A","Adjustable response value current / tg max.":"0.3 s","Adjustable response value current / tg min.":"0.1 s","Ground fault protection can be switched ON/OFF":"No","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"3","Protective function of the overcurrent release":"LIG","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB11","Switching capacity class of the circuit breaker":"H","Max. rated operational current of the frame size":"160 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Type of electrical connection / for main current circuit":"box terminal","Arrangement of electrical connectors / for main current circuit":"Front terminal","Type of connectable conductor cross-section, round conductor terminal, stranded":"1 x (6-120 mm²)"}},"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=316442&mlfb=3VA2125-6HM46-0FJ0"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA2125-6HM46-0FJ0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What is 3VA2125-6HM46-0FJ0's listed depth (107 mm) on this component line?","answer":"The depth is 107 mm, with a width of 140 mm and a height of 181 mm."},{"question":"What compliance documentation does this brand provide for 3VA2125-6HM46-0FJ0 (RoHS, REACH, UL, IEC)?","answer":"As a Siemens SENTRON molded case circuit breaker, the 3VA2125-6HM46-0FJ0 is manufactured to IEC 60947-2 and carries UL/CSA certification for the North American market. RoHS and REACH declarations are standard from Siemens for current-production parts."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2125-6HM46-0FJ0","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/3VA2125-6HM46-0FJ0 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}}