{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1140-3ED46-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1140-3ED46-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1140-3ED46-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1140-3ED46-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1140-3ED46-0AA0, molded case circuit breaker (MCCB), 40 A, 4-pole, TM210 thermal-magnetic release, 75.6 kA at 240 V, 52.5 kA at 415 V.","salesMarkdown":"## Line protection MCCB for panel builders The TM210 thermal-magnetic release provides adjustable short-circuit response up to 400 A (li max.), giving the panel builder flexibility to coordinate with downstream loads without swapping the breaker body. Breaking capacity is specified at multiple system voltages: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 11.9 kA at both 500 V and 690 V. For a 400 V class panel, the 52.5 kA figure at 415 V gives headroom above typical 25–36 kA SCCR requirements, making this breaker a strong candidate for high-fault utility feeds or transformer secondaries. Temperature derating is published per degree: full 40 A up to 50 °C, then 39 A at 55 °C, 39 A at 60 °C, 38 A at 65 °C, and 37 A at 70 °C. If the breaker is mounted in a non-ventilated enclosure near other heat sources, use the 55 °C or 60 °C row for the effective ampacity — the 40 A nameplate applies only when ambient stays at or below 50 °C. Dimensions are 101.6 mm wide, 130 mm high, and 70 mm deep — a 4-pole MCCB that fits a standard 100 mm wide DIN-rail cutout or panel-mount footprint. Power loss is 10.8 W maximum at rated load. In a densely packed enclosure, that heat must be factored into the thermal budget — especially since the breaker itself derates above 50 °C. The optional motor drive (Product Extension / Optional / Motor Drive: Yes) allows remote motorized operation for automated disconnection schemes. ## Coordination and release detail That adjustability lets the engineer set short-circuit pickup above the inrush of a motor or transformer load while still clearing low-level faults. The breaker carries an insulation voltage rating of 800 V (Ui) and a maximum DC operational voltage of 600 V, so it can serve in DC distribution sub-panels as well — though the DC breaking capacity must be verified against the 3VA device manual for the specific DC network configuration. No ground-fault monitoring version is included (Ground-Fault Monitoring Version: Without), and no N-conductor protection is built in (design of the N-conductor protection: Without). For applications requiring GFCI or a switched neutral, an external accessory or a different 3VA variant is needed.","metaTitle":"Siemens 3VA1140-3ED46-0AA0 SENTRON MCCB, 40 A, 4-Pole, 75.6","metaDescription":"Siemens 3VA1140-3ED46-0AA0 SENTRON molded case circuit breaker, 40 A continuous, 4-pole, 75.6 kA breaking at 240 V. TM210 release. 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":"75.6 kA","at 415 V":"52.5 kA","at 440 V":"32 kA","at 500 V":"11.9 kA","at 690 V":"11.9 kA","at 45 °C":"40 A","at 50 °C":"40 A","at 55 °C":"39 A","at 60 °C":"39 A","at 65 °C":"38 A","at 70 °C":"37 A","Depth [In]":"2.76 in","Width [In]":"4 in","Height [In]":"5.12 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":"10.8 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Courant permanent assigné Iu":"40 A","Ground-Fault Monitoring Version":"Without","Tension assignée d'isolement Ui":"800 V","Design Of The Overcurrent Release":"TM210","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":"Without","reference code / acc. to IEC 81346-2":"Q","Max. rated operational voltage Ue with DC":"600 V","Product Extension / Optional / Motor Drive":"Yes","Adjustable response value current / li max.":"400 A","Adjustable response value current / li min.":"400 A","Neutral conductors / upgradeable/retrofittable":"No","Protection Function Of The Overcurrent Release":"LI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"N","Max. rated operational current of the frame size":"160 A","Mechanical Service Life (Operating 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":"https://cdn.aoctrl.com/b6cfabb097ccae6aea21933b309437b6.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=182848&mlfb=3VA1140-3ED46-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1140-3ED46-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA1140-3ED46-0AA0 at 415 V?","answer":"52.5 kA at 415 V. For reference, it also carries 75.6 kA at 240 V, 32 kA at 440 V, and 11.9 kA at both 500 V and 690 V."},{"question":"Where can I buy 3VA1140-3ED46-0AA0 and how is it quoted?","answer":"This part is sourced through independent distribution and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time — no stock count or price is published here."},{"question":"What is the continuous current rating and how does temperature affect it?","answer":"The continuous current Iu is 40 A. Full rating holds up to 50 °C; above that it derates to 39 A at 55 °C, 39 A at 60 °C, 38 A at 65 °C, and 37 A at 70 °C."},{"question":"Does 3VA1140-3ED46-0AA0 include ground-fault or neutral protection?","answer":"No. This variant is supplied without ground-fault monitoring and without N-conductor protection. For those functions, an accessory or a different 3VA order code is required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1140-3ED46-0AA0","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/3VA1140-3ED46-0AA0 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}}