{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2140-7MQ32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2140-7MQ32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2140-7MQ32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2140-7MQ32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2 series, Molded case circuit breaker, 3VA2140-7MQ32-0AA0, 3-pole, 40 A continuous, motor protection design, communication function, 86 mm depth.","salesMarkdown":"The adjustable thermal overload range starts at 8 A and goes to the 40 A full-scale value, giving you a wide window to match the motor FLA without swapping breaker frames. ## Interrupting capacity — what those kA numbers mean for your panel This breaker delivers 330 kA interrupting capacity at 240 V, dropping to 242 kA at 415 V and 440 V, then 187 kA at 500 V, and 3.7 kA at 690 V. For most 400 V class motor control centers, the 242 kA figure gives enormous headroom over typical 50-65 kA SCCR panels. ## Protection and communication features It also carries a communication function and an 'other measurement function' capability, which suggests it can report trip data and status over a bus, though the exact protocol isn't specified here. No undervoltage release is fitted, so if you need UVR for your safety circuit, that's an accessory add-on. No trip indicator window on the front — you'll need to read the handle position or use the communication output for status.","metaTitle":"Siemens 3VA2140-7MQ32-0AA0 SENTRON MCCB, 40 A, 3-Pole, Motor","metaDescription":"Siemens 3VA2140-7MQ32-0AA0 SENTRON molded case circuit breaker, 40 A rated, 3-pole motor protection with communication function. 330 kA at 240 V interrupting capacity. Current prod","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":"3VA2140-7MQ32-0AA0","Height":"181 mm","Maximum":"30 s","Minimum":"3 s","at 240 V":"330 kA","at 415 V":"242 kA","at 440 V":"242 kA","at 500 V":"187 kA","at 690 V":"3.7 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]":"3.39 in","Width [In]":"4.13 in","Height [In]":"7.13 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 nut keeper kit","Initial Value":"8 A","Trip Indicator":"No","Number Of Poles":"3","Voltage Trigger":"No","lifecycle_stage":"current","Full-Scale Value":"40 A","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Design Of The Product":"Motor protection","Communication Function":"Yes","Phase Failure Detection":"Yes","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"1.6 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"Yes","Ground-Fault Monitoring Version":"Summation current formation L-conductor","Continuous Current / Rated Value":"40 A","Insulation Voltage / Rated Value":"800 V","adjustable trip class (Tc CLASS)":"10A, 10/10E, 20/ 20E, 30/30E","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","Product Function / Grounding Protection":"Yes","operating voltage / at AC / rated value":"690 V","reference code / according to IEC 81346-2":"Q","Continuous Current / Rated Value / Maximum":"160 A","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"LSIG","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"C","Mechanical Service Life (Operating Cycles) / Typical":"25 000","Type Of Electrical Connection / For Main Current Circuit":"on both sides nut keeper kit","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=569520&mlfb=3VA2140-7MQ32-0AA0"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA2140-7MQ32-0AA0?","answer":"Submit an RFQ through this listing. We source through independent distribution channels and confirm current pricing and availability at quote time — no automated stock figures here, because the market moves day to day."},{"question":"What is the interrupting capacity of this MCCB at 415 V?","answer":"242 kA at 415 V, which is the same rating it carries at 440 V — plenty of headroom for standard 400 V class distribution panels."},{"question":"What compliance documentation does Siemens provide for 3VA2140-7MQ32-0AA0?","answer":"As a current-production SENTRON MCCB, this breaker carries the standard Siemens compliance package including CE marking for the European market and UL/CSA certifications for North American installations. RoHS and REACH declarations are available through the manufacturer's documentation portal."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2140-7MQ32-0AA0","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/3VA2140-7MQ32-0AA0 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}}