{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2140-5MN32-0AE0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2140-5MN32-0AE0","canonicalUrl":"https://aoctrl.com/siemens/3VA2140-5MN32-0AE0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2140-5MN32-0AE0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2140-5MN32-0AE0, molded case circuit breaker, 3-pole, 40 A, motor protection version, ETU350M electronic trip unit, 187 kA at 240 V.","salesMarkdown":"## Siemens 3VA2140-5MN32-0AE0 — 40 A SENTRON MCCB with ETU350M It carries a breaking capacity of 187 kA at 240 V AC and 121 kA at 415 V and 440 V AC — figures that place it in the high-interrupting class, sized for fault currents typical at the main distribution board or large motor branch circuit. The breaker ships with four HQ auxiliary switches and no undervoltage or shunt release fitted, so those functions must be added externally if required. Rated insulation voltage is 800 V, and the interrupting ratings step down across the voltage range: 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 17 kA at 690 V. The 40 A continuous rating holds from 40 °C through 50 °C ambient; above that it derates to 38.4 A at 55 °C and 36 A at 70 °C (–). Mounted in a panel that runs warm — near other breakers or a transformer — factor that derate into the load calculation. Maximum power loss is 75 W. No trip indicator is fitted, so a blown breaker requires a multimeter or auxiliary contact feedback to confirm state.","metaTitle":"Siemens 3VA2140-5MN32-0AE0 SENTRON MCCB, 40 A, 3-Pole, 187 k","metaDescription":"Siemens SENTRON 3VA2140-5MN32-0AE0 molded case circuit breaker, 40 A rated continuous current, 3-pole, breaking capacity 187 kA at 240 V. Motor protection version with ETU350M rele","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","title":"3VA2140-5MN32-0AE0","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","description":"circuit breaker 3VA2 IEC frame 160 breaking capacity class M Icu=55kA @ 415V 3-pole, motor protection ETU350M, LSI, In=40A overload protection Ir=16A...40A short-circuit protection Isd=3...15 x Ir, Ii=15 x In nut keeper kit 4 auxiliary switches HQ","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":"No","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":"4 auxiliary switches 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","Of The Supplied Basic Switch":"3VA2140-5MN32-0AA0","Design of the auxiliary release":"Without auxiliary release","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9608-0BB24","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":"4","Protective function of the overcurrent release":"LSI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","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,"stockQuantity":0,"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=569646&mlfb=3VA2140-5MN32-0AE0"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA2140-5MN32-0AE0 at 415 V?","answer":"121 kA at 415 V AC, which is the same rating it carries at 440 V. At 240 V it reaches 187 kA."},{"question":"Does this MCCB include phase failure protection?","answer":"Yes, phase failure detection is built into the ETU350M trip unit. It will trip on a lost phase — a key feature for motor branch circuits."},{"question":"Where can I buy 3VA2140-5MN32-0AE0 and how is it quoted?","answer":"This part is sourced to order through independent distribution channels. Submit an RFQ for current availability and pricing — confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2140-5MN32-0AE0","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/3VA2140-5MN32-0AE0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}