{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1140-5ED42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1140-5ED42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1140-5ED42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1140-5ED42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"SENTRON 3VA1140-5ED42-0AA0, 4-pole molded case circuit breaker, 40 A rated current, TM210 thermal-magnetic release, 187 kA interrupting capacity at 240 V AC, IP40 front protection.","salesMarkdown":"Its TM210 thermal-magnetic release handles overload and short-circuit trip curves without external controls. With a 187 kA interrupting rating at 240 V AC — dropping to 121 kA at 415 V and 75.6 kA at 440 V — this breaker provides serious fault-current headroom for high-capacity feeders where selectivity with downstream devices matters. The front face is IP40-protected, so it's suited for panel-mount applications where the enclosure provides the environmental seal. ## Interrupting capacity across voltage levels The interrupting ratings span from 187 kA at 240 V down to 17 kA at 500 V and 690 V. That steep drop-off means at higher voltages the breaker's available fault-current handling is much lower — coordination studies should use the 500 V / 690 V figure where applicable. At 415 V (common in European industrial systems) the 121 kA rating still exceeds most transformer-fed fault levels.","metaTitle":"SENTRON 3VA1140-5ED42-0AA0 Molded Case Circuit Breaker, 4-Po","metaDescription":"SENTRON 3VA1140-5ED42-0AA0 4-pole MCCB, 40 A rated, TM210 release, 187 kA at 240 V breaking capacity. Active production, sourced to order against RFQ.","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":"187 kA","at 415 V":"121 kA","at 440 V":"75.6 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]":"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":"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","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":"M","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":"https://cdn.aoctrl.com/28c8c9c8d5fc01dcd1369ac1e028e7b3.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=140319&mlfb=3VA1140-5ED42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1140-5ED42-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1140-5ED42-0AA0 and get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit a request for quote (RFQ) for current pricing and availability — confirmed at quote time."},{"question":"What is the interrupting rating of 3VA1140-5ED42-0AA0 at 240 V?","answer":"187 kA at 240 V AC. At 415 V it's 121 kA, at 440 V it's 75.6 kA, and at 500 V or 690 V it's 17 kA."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1140-5ED42-0AA0","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/3VA1140-5ED42-0AA0 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}}