{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1140-3EF46-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1140-3EF46-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1140-3EF46-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1140-3EF46-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA molded case circuit breaker, 3VA1140-3EF46-0AA0, line protection, 4-pole, 40 A rated at 40 °C, TM240 thermal-magnetic release, 75.6 kA breaking capacity at 240 V.","salesMarkdown":"Breaking capacity is what you'd expect from a compact MCCB: 75.6 kA at 240 V, 52.5 kA at 415 V, and still 11.9 kA at 690 V, so it handles fault currents on most low-voltage distribution systems without a problem. The 40 A rating holds from 40 °C up to 50 °C without derating — at 55 °C it's 39 A, at 70 °C it's 37 A. Dimensions: 130 mm tall, 101.6 mm wide, 70 mm deep (-). Four poles in a single molded case; line and load lugs are standard. No undervoltage release or shunt trip built in, so if you need remote tripping you'll add an accessory.","metaTitle":"Siemens 3VA1140-3EF46-0AA0 SENTRON MCCB, 40A, 4-Pole, 75.6kA","metaDescription":"Siemens SENTRON 3VA1140-3EF46-0AA0 molded case circuit breaker. 40A rated, 4-pole, 75.6kA breaking at 240V. Active production, TM240 release. Available to order, quoted on request.","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","Maximum":"0 A","Minimum":"0 A","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 40 °C":"40 A","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","Trip Indicator":"No","Number Of Poles":"4","Voltage Trigger":"No","lifecycle_stage":"current","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":"10.8 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Ground-Fault Monitoring Version":"Without","Insulation Voltage / Rated Value":"800 V","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":"without","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","operating voltage / at DC / rated value":"600 V","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"LI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"N","Mechanical Service Life (Operating Cycles) / Typical":"20 000","Type Of Electrical Connection / For Main Current Circuit":"box terminal on both sides","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/5c439a2b34dec1acc8161a470a15729f.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=453663&mlfb=3VA1140-3EF46-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1140-3EF46-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1140-3EF46-0AA0 and how do I get a price?","answer":"We source this breaker to order through independent distribution. Send us an RFQ and we'll confirm current availability and pricing at quote time — no runaround."},{"question":"What is the breaking capacity of the 3VA1140-3EF46-0AA0 at different voltages?","answer":"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. That covers most industrial distribution fault levels."},{"question":"Will the 3VA1140-3EF46-0AA0 drop into a panel wired for a 3VA1110-5ED32-0AA0?","answer":"Not without checking the mounting footprint. The 3VA1140-3EF46-0AA0 is a 4-pole breaker, while the 3VA1110-5ED32-0AA0 is a different variant. Pole count and physical dimensions differ — verify the panel cutout and bus bar layout before swapping."},{"question":"What compliance documentation does Siemens provide for this breaker?","answer":"Standard Siemens SENTRON documentation includes the device manual, declaration of conformity, and environmental compliance sheets (RoHS, REACH). The product designation is 'Molded case circuit breaker' for line protection. Specific certs like UL or IEC are typically listed on the nameplate; request the full compliance package with your RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1140-3EF46-0AA0","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/3VA1140-3EF46-0AA0 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}}