{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2140-5MN32-0BA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2140-5MN32-0BA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2140-5MN32-0BA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2140-5MN32-0BA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2 series, molded case circuit breaker (MCCB), 3-pole, 40 A rated continuous current, ETU350M electronic trip unit, 187 kA interrupting at 240 V AC, undervoltage release, phase failure detection.","salesMarkdown":"The 3VA2140-5MN32-0BA0: Three poles, 40 A at 40 °C through 50 °C without derating; above that the thermal curve pulls it down to 36 A at 70 °C. ## Trip unit and protection logic The ETU350M electronic release handles overload, short-circuit, and ground-fault (though this variant ships without ground-fault monitoring — the release is capable, but the module is omitted here). An undervoltage release (UVR) is integrated — part number 3VA9608-0BB11 for the auxiliary trip coil. That means the breaker drops on loss of control voltage, which is standard for emergency-stop circuits or undervoltage protection schemes. No auxiliary contacts on this variant, so if you need status feedback to a PLC, you add them externally. That is the standard 3VA2 footprint — it drops into the same cutout as other 3VA2 three-pole frames.","metaTitle":"Siemens 3VA2140-5MN32-0BA0 SENTRON MCCB, 40A, 187kA at 240V","metaDescription":"Siemens 3VA2140-5MN32-0BA0 SENTRON molded case circuit breaker, 40A rated, 187kA interrupting at 240V. ETU350M release, undervoltage trip, phase failure detection. Active productio","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"86 mm","Width":"105 mm","Height":"181 mm","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"121 kA","at 500 V":"75.6 kA","at 690 V":"17 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":"No","Number of poles":"3","Product version":"Motor protection","Voltage trigger":"No","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"20 000","Undervoltage Release":"Yes","Communication Function":"No","Phase failure detection":"Yes","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Power loss [W] / maximum":"75 W","Auxiliary contact version":"Without","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","Of The Supplied Basic Switch":"3VA2140-5MN32-0AA0","Design of the auxiliary release":"Undervoltage release (UVR)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9608-0BB11","Design of the overcurrent release":"ETU350M","Protection class IP / on the front":"IP40","Operating power / at AC-3 / at 400 V":"15 W","Reference code / acc. to DIN EN 81346-2":"Q","Adjustable response value time / tr max.":"17","Adjustable response value time / tr min.":"4","Adjustable response value time / tsd max.":"0.03 s","Adjustable response value time / tsd min.":"0.03 s","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.":"600 A","Adjustable response value current / li min.":"600 A","Adjustable response value current / lr min.":"16 A","Adjustable response value current / Isd max.":"600 A","Adjustable response value current / Isd min.":"120 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"0","Protective function of the overcurrent release":"LSI","Switching capacity class of the circuit breaker":"M","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"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/cda978e31ec81fb539d5632cb59bd0b3.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=569651&mlfb=3VA2140-5MN32-0BA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2140-5MN32-0BA0/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting capacity at 415 V?","answer":"121 kA at 415 V AC, which is also the rating at 440 V. At 240 V it reaches 187 kA; at 690 V it drops to 17 kA."},{"question":"Does this breaker include phase failure protection?","answer":"Yes, phase failure detection is built into the ETU350M trip unit. That is a key differentiator from thermal-magnetic breakers on motor feeders."},{"question":"What undervoltage release is fitted?","answer":"The integrated UVR is design-coded as 3VA9608-0BB11. It drops the breaker on loss of control voltage."},{"question":"Where can I buy 3VA2140-5MN32-0BA0 and get current pricing?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2140-5MN32-0BA0","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/3VA2140-5MN32-0BA0 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}}