{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2125-6JQ46-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2125-6JQ46-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2125-6JQ46-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2125-6JQ46-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2125-6JQ46-0AA0, molded case circuit breaker, 4-pole, 25 A continuous, 242 kA interrupting at 240 V, line protection design with ground-fault monitoring and communication function.","salesMarkdown":"Its interrupting capacity reaches 242 kA at 240 V, dropping to 187 kA at 415 V and 440 V, then to 121 kA at 500 V, and 3.7 kA at 690 V — the 690 V figure is the one to watch if you're feeding a 690 V bus; that's a steep derating curve that governs selectivity coordination at higher voltages. The 4-pole configuration (switching all three phases plus neutral) is the right choice for TN-S or TT systems where you need to break the neutral to ensure isolation. Ground-fault monitoring uses summation current formation on L + N conductors, so it detects residual currents without a separate GFCI module — that saves a DIN slot. ## Panel integration dimensions The 86 mm depth (3.39 in) is shallow enough for standard 200 mm deep enclosures, leaving room for wiring gutters and busbar connections behind the breaker. The 140 mm width (5.51 in) for a 4-pole MCCB is typical — verify your DIN-rail or mounting-plate spacing allows for the 4-pole width plus side clearance for cable bending radius.","metaTitle":"Siemens 3VA2125-6JQ46-0AA0 SENTRON MCCB, 25 A, 4-Pole, 242 k","metaDescription":"Siemens SENTRON 3VA2125-6JQ46-0AA0 molded case circuit breaker, 25 A continuous, 4-pole, 242 kA interrupting at 240 V. Current lifecycle. Ground-fault monitoring. 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":"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":"Yes","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":"ETU560","protection class IP / on the front":"IP40","design of the N-conductor protection":"adjustable OFF; 40% to 160%","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":"LSIG","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=333748&mlfb=3VA2125-6JQ46-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2125-6JQ46-0AA0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA2125-6JQ46-0AA0?","answer":"Submit an RFQ through this listing. The part is sourced to order through independent distribution; current pricing and stock levels are confirmed at quote time."},{"question":"What are the key interrupting ratings for 3VA2125-6JQ46-0AA0?","answer":"242 kA at 240 V, 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 limiting case for high-voltage distribution."},{"question":"Does 3VA2125-6JQ46-0AA0 include ground-fault protection?","answer":"Yes, it has ground-fault monitoring using summation current formation on L + N conductors, which detects residual currents without a separate module."},{"question":"What are the mounting dimensions of 3VA2125-6JQ46-0AA0?","answer":"Width 140 mm (5.51 in), height 181 mm (7.13 in), depth 86 mm (3.39 in). Fits standard 200 mm deep enclosures."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2125-6JQ46-0AA0","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/3VA2125-6JQ46-0AA0 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}}