{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1140-6EF32-0AC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1140-6EF32-0AC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1140-6EF32-0AC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1140-6EF32-0AC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1140-6EF32-0AC0, molded case circuit breaker, 3-pole, 40 A rated current, TM240 overcurrent release, line protection design, 220 kA breaking capacity at 240 V.","salesMarkdown":"Breaking capacity is 220 kA at 240 V, 154 kA at 415 V, and 121 kA at 440 V, dropping to 17 kA at 500 V and 690 V — the high interrupt ratings at lower voltages make this breaker suitable for high-fault-capacity service entrances or industrial sub-distribution where fault currents can exceed 100 kA. ## Current Derating and Thermal Performance At 55 °C it derates to 39 A, at 65 °C to 38 A, and at 70 °C to 37 A — a 7.5 % loss from the nameplate at the top of the operating range. Maximum power dissipation is 10.8 W, which matters for thermal coordination inside a sealed enclosure. ## Panel Fit and Auxiliary Switching Dimensions are 76.2 mm wide (3 in), 130 mm high (5.12 in), and 70 mm deep (2.76 in) — a standard 3-pole MCCB footprint that drops into most SENTRON panelboards and distribution blocks without re-drilling. The breaker ships with two factory-installed auxiliary switches (HQ type), providing status feedback for remote monitoring or PLC inputs.","metaTitle":"Siemens 3VA1140-6EF32-0AC0 SENTRON MCCB, 40 A, 3-Pole, 220 k","metaDescription":"Siemens SENTRON 3VA1140-6EF32-0AC0 molded case circuit breaker, 40 A, 3-pole, 220 kA breaking capacity at 240 V. Active production, sourced to order. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"76.2 mm","Height":"130 mm","Maximum":"0 A","Minimum":"0 A","at 240 V":"220 kA","at 415 V":"154 kA","at 440 V":"121 kA","at 500 V":"17 kA","at 690 V":"17 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]":"3 in","Height [In]":"5.12 in","Trip Indicator":"No","Number Of Poles":"3","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","Of The Supplied Basic Switch":"3VA11406EF320AA0","Design Of The Auxiliary Switch":"2 auxiliary switches HQ","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","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","operating voltage / at DC / rated value":"500 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":"2","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","Switching Capacity Class Of The Circuit Breaker":"H","Mechanical Service Life (Operating Cycles) / Typical":"20 000","Type Of Electrical Connection / For Main Current Circuit":"nut keeper kit on both ends","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front terminal"}},"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=390162&mlfb=3VA1140-6EF32-0AC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1140-6EF32-0AC0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1140-6EF32-0AC0 and get a price?","answer":"This part is sourced to order against an RFQ through independent distribution. Submit a request for quote; availability and current pricing are confirmed at quote time."},{"question":"What compliance documentation is available for this SENTRON breaker?","answer":"As a Siemens SENTRON series MCCB, it carries the standard IEC/UL certifications typical for this class. Specific RoHS, REACH, and UL documentation is available from Siemens upon request through the supply channel."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1140-6EF32-0AC0","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/3VA1140-6EF32-0AC0 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}}