{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2140-7MQ36-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2140-7MQ36-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2140-7MQ36-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2140-7MQ36-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2 series, molded case circuit breaker (MCCB), 3-pole, 40 A, ETU860M electronic trip unit, motor protection version, 330 kA at 240 V.","salesMarkdown":"The Siemens 3VA2140-7MQ36-0AA0 is a 3-pole SENTRON molded case circuit breaker (MCCB) in the motor protection version, rated for a continuous current of 40 A across the full ambient range from 40 °C to 70 °C — no derating curve to chase at the top end. It ships with the ETU860M electronic overcurrent release, which brings phase failure detection, ground fault monitoring via summation current formation on the L-conductor, and a communication function — meaning this breaker talks to the control system, not just trips in a hole. Breaking capacity is the headline number here: 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 3.8 kA at 690 V. ## DIN-rail fit and panel integration Maximum power loss is 10 W, which matters when you're stacking several breakers in a sealed enclosure — that heat has to go somewhere. Lifecycle stage is marked as current — meaning Siemens still actively produces this variant, no phase-out notice on the horizon.","metaTitle":"Siemens 3VA2140-7MQ36-0AA0 SENTRON MCCB, 40 A, ETU860M, 330","metaDescription":"Siemens 3VA2140-7MQ36-0AA0 SENTRON molded case circuit breaker, 40 A rated continuous current, ETU860M electronic release, 330 kA breaking capacity at 240 V. Current lifecycle. Quo","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"86 mm","Width":"105 mm","title":"3VA2140-7MQ36-0AA0","Height":"181 mm","at 240 V":"330 kA","at 415 V":"242 kA","at 440 V":"242 kA","at 500 V":"187 kA","at 690 V":"3.8 kA","at 40 °C":"40 A","at 45 °C":"40 A","at 50 °C":"40 A","at 55 °C":"40 A","at 60 °C":"40 A","at 65 °C":"40 A","at 70 °C":"40 A","Depth [in]":"3.4 in","Width [in]":"4.1 in","Height [in]":"7.1 in","description":"circuit breaker 3VA2 IEC frame 160 breaking capacity class C Icu=110kA @ 415V 3-pole, motor protection ETU860M, LSIG, In=40A overload protection Ir=16A...40A short-circuit protection Isd=1.2..15x In, Ii=3..15x In gr.-fault prot., can be sw. off Ig=0.4... 1 x In, tg=0.05-0.8s clamp connection","Number of poles":"3","Product version":"Motor protection","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"20 000","Communication Function":"Yes","Phase failure detection":"Yes","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Power loss [W] / maximum":"10 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-40 °C","Other Measurement Function":"Yes","Rated continuous current Iu":"40 A","Rated insulation voltage Ui":"800 V","Ground fault monitoring version":"Summation current formation L-conductor","Design of the overcurrent release":"ETU860M","Protection class IP / on the front":"IP40","Operating power / at AC-3 / at 230 V":"11 000 W","Operating power / at AC-3 / at 400 V":"18 500 W","Reference code / acc. to DIN EN 81346-2":"Q","Adjustable response value time / tr max.":"30","Adjustable response value time / tr min.":"3","Adjustable response value time / tsd max.":"0.03 s","Adjustable response value time / tsd min.":"0.03 s","Product extension / optional / motor drive":"Yes","Adjustable response value current / Ir max.":"40 A","Adjustable response value current / lg max.":"40 A","Adjustable response value current / lg min.":"8 A","Adjustable response value current / li max.":"600 A","Adjustable response value current / li min.":"120 A","Adjustable response value current / lr min.":"16 A","Adjustable response value current / tg max.":"0.8 s","Adjustable response value current / tg min.":"0.05 s","Adjustable response value current / Isd max.":"600 A","Adjustable response value current / Isd min.":"48 A","Ground fault protection can be switched ON/OFF":"Yes","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"0","Protective function of the overcurrent release":"LSIG","Switching capacity class of the circuit breaker":"C","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":"box terminal","Arrangement of electrical connectors / for main current circuit":"Front terminal","Type of connectable conductor cross-section, round conductor terminal, stranded":"1 x (6-120 mm²)"}},"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=569521&mlfb=3VA2140-7MQ36-0AA0"},"ai":{"faq":[{"question":"Will 3VA2140-7MQ36-0AA0 drop into a panel specified for 3VA2140-8JQ42-0AA0?","answer":"Both are 3-pole SENTRON MCCBs in the same 105 mm wide footprint, so mechanical fit is the same — the difference is in the trip unit and accessory configuration, not the mounting hole pattern."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2140-7MQ36-0AA0","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/3VA2140-7MQ36-0AA0 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}}