{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1140-4EF32-0DH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1140-4EF32-0DH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1140-4EF32-0DH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1140-4EF32-0DH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1140-4EF32-0DH0, molded case circuit breaker, 3-pole, 40 A rated continuous current, 121 kA interrupting at 240 V, TM240 thermal-magnetic release, undervoltage release, IP40 front.","salesMarkdown":"What it does have is serious interrupting capacity: 121 kA at 240 V, 75.6 kA at 415 V, and still 52.5 kA at 440 V. That means it can sit upstream of a high-fault panel and clear a bolted fault without the arc flash turning into a fire drill. At 55 °C it drops to 38.4 A, and at 70 °C it's still delivering 36 A. If your panel runs hot, you don't lose a full breaker size; you just lose a couple amps. The 15 000 mechanical endurance cycles are standard for this class — not a high-cycle machine-tool breaker, but fine for distribution duty where it operates a few times a year. The trip indicator on the front gives a local visual — handy for a maintenance walk-through. The 3VA1140-4EF32-0DH0 measures 130 mm high, 76.2 mm wide, 70 mm deep. That's a standard SENTRON 3VA1 frame size — it bolts into the same mounting footprint as the smaller 3VA1010 frame breakers. If you're swapping out a 3VA1010-2ED32-0JA0, the panel cutout and bus-bar spacing are identical; you just get a higher interrupting rating and a different trip curve.","metaTitle":"Siemens 3VA1140-4EF32-0DH0 SENTRON MCCB, 40 A, 3-Pole, 121 k","metaDescription":"Siemens 3VA1140-4EF32-0DH0 SENTRON molded case circuit breaker, 40 A rated, 3-pole, 121 kA at 240 V. Current 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","at 240 V":"121 kA","at 415 V":"75.6 kA","at 440 V":"52.5 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":"38.4 A","at 60 °C":"37.6 A","at 65 °C":"36.8 A","at 70 °C":"36 A","Trip indicator":"Yes","Number of poles":"3","Product version":"Line protection","Voltage trigger":"No","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"15 000","Undervoltage Release":"Yes","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Auxiliary contact version":"2 auxiliary switches + 1 trip alarm switch HQ","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"40 A","Rated insulation voltage Ui":"800 V","Design of the auxiliary release":"Undervoltage release (UVR)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9608-0BB25","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","Reference code / acc. to DIN EN 81346-2":"Q","Adjustable response value time / tr max.":"1","Adjustable response value time / tr min.":"1","Max. rated operational voltage Ue with DC":"500 V","Undervoltage Release With Leading Contact":"No","Product extension / optional / motor drive":"Yes","Adjustable response value current / Ir max.":"40 A","Adjustable response value current / li max.":"400 A","Adjustable response value current / li min.":"200 A","Adjustable response value current / lr min.":"28 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"3","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","Switching capacity class of the circuit breaker":"S","Max. rated operational current of the frame size":"160 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Type of electrical connection / for main current circuit":"lug terminal","Arrangement of electrical connectors / for main current circuit":"Front terminal","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"17 x 6.5","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"12 x 0"}},"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=64268&mlfb=3VA1140-4EF32-0DH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1140-4EF32-0DH0/alternatives.json"},"ai":{"faq":[{"question":"Will 3VA1140-4EF32-0DH0 drop into a panel specified around 3VA1010-2ED32-0JA0 without rewiring?","answer":"Yes. Both breakers share the same SENTRON 3VA1 frame dimensions (130 mm height, 76.2 mm width, 70 mm depth) and mounting footprint. The bus-bar spacing and panel cutout are identical — no rewiring needed for the mechanical fit. The electrical differences are the interrupting rating and trip curve; verify the trip coordination with your existing downstream breakers."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1140-4EF32-0DH0","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/3VA1140-4EF32-0DH0 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}}