{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2140-5MN32-0AC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2140-5MN32-0AC0","canonicalUrl":"https://aoctrl.com/siemens/3VA2140-5MN32-0AC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2140-5MN32-0AC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2140-5MN32-0AC0, molded case circuit breaker, 3-pole, motor protection version, 40 A rated continuous current Iu, ETU350M electronic overcurrent release, 2 auxiliary switches HQ, breaking capacity 187 kA at 240 V.","salesMarkdown":"Breaking capacity runs 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, so it handles high-fault utility feeds or transformer secondaries without cascading upstream. The 3-pole form factor with 2 auxiliary switches HQ gives status feedback for PLC or HMI inputs without an add-on module. Above that, derate linearly: 38.4 A at 55 °C, 37.6 A at 60 °C, 36.8 A at 65 °C, and 36 A at 70 °C. For a panel running warm — say, adjacent to drives or transformers — size the load side for the actual enclosure temperature, not the nameplate 40 A. The 105 mm width and 181 mm height fit standard SENTRON mounting footprints; depth is 86 mm. Maximum power loss is 75 W, so account for that in the enclosure thermal budget. ## Comparison with 3VA1110-5EE32-0DC0 The 3VA1110-5EE32-0DC0 is a smaller-frame SENTRON MCCB with a lower interrupting rating and a thermal-magnetic trip (no electronic adjustment). The 3VA2140-5MN32-0AC0 uses the ETU350M electronic trip, giving you adjustable long-time, short-time, and instantaneous pickup — critical for coordinating with downstream motor starters or for systems that need selective coordination studies. The 3VA1110 frame also lacks the phase failure detection that is standard on this motor protection variant. If the panel was originally specified around the 3VA1110, the 3VA2140 is physically larger (105 mm vs roughly 70 mm wide) and will not drop into the same mounting cutout without a new drill pattern or adapter plate.","metaTitle":"Siemens 3VA2140-5MN32-0AC0 SENTRON MCCB, 40 A, ETU350M, 3-Po","metaDescription":"Siemens SENTRON 3VA2140-5MN32-0AC0 molded case circuit breaker, 40 A rated, ETU350M electronic trip, 3-pole motor protection. Breaking capacity 187 kA at 240 V. Current lifecycle s","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":"3VA2140-5MN32-0AC0","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 2 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":"2 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","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":"2","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=569644&mlfb=3VA2140-5MN32-0AC0"},"ai":{"faq":[{"question":"Where can I buy 3VA2140-5MN32-0AC0 and how do I get a price?","answer":"This part is sourced and quoted to order through independent distribution. Submit an RFQ to confirm current availability and pricing at quote time — no stock count or price figure is published here."},{"question":"What is the breaking capacity of 3VA2140-5MN32-0AC0 at different voltages?","answer":"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. These are the maximum short-circuit currents the breaker can safely interrupt at each voltage level."},{"question":"Does the 3VA2140-5MN32-0AC0 include phase failure detection?","answer":"Yes, phase failure detection is built into the ETU350M electronic trip unit. No separate phase-loss relay is required."},{"question":"What compliance documentation does this brand provide for 3VA2140-5MN32-0AC0?","answer":"Siemens SENTRON MCCBs typically carry IEC 60947-2 certification, UL 489 listing, and CE marking. RoHS and REACH declarations are available from Siemens documentation. Specific certs for this order code should be confirmed from the manufacturer's declaration of conformity."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2140-5MN32-0AC0","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/3VA2140-5MN32-0AC0 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}}