{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2140-7MN32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2140-7MN32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2140-7MN32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2140-7MN32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2 series, Molded Case Circuit Breaker, 3VA2140-7MN32-0AA0, 3-pole, 40 A rated, motor protection design, adjustable trip class 10A/10E/20E, breaking capacity 330 kA at 240 V.","salesMarkdown":"## Integrator's note on the 3VA2140-7MN32-0AA0 The Siemens 3VA2140-7MN32-0AA0 is a SENTRON molded case circuit breaker (MCCB) built for motor protection — 40 A continuous current, three poles, with an adjustable trip class selector that lets you pick 10A, 10E, or 20E to match the thermal curve to your motor's starting profile. Breaking capacity runs 330 kA at 240 V, drops to 242 kA at 415 V and 440 V, then 187 kA at 500 V, and 3.7 kA at 690 V — that's a lot of headroom for most distribution panels, but the 690 V number tells you this is a 480 V class breaker being pushed near its insulation limit (rated insulation voltage 800 V). This part is in the SENTRON 3VA2 family with lifecycle status current. ## What the trip class adjustment means on the bench The adjustable trip class (Tc) gives you 10A, 10E, or 20E. Class 10A is the fastest thermal trip — good for motors that start unloaded and ramp quickly. Class 20E allows longer inrush, suited for high-inertia loads like fans or centrifuges. The 'E' suffix indicates electronic trip, so the curve is more repeatable than a bimetal. Trip indicator is not fitted — no local mechanical flag to show the breaker tripped. If you need visual trip indication at the breaker face, this isn't the variant; look at the -8JQ or -8HM siblings that carry the indicator.","metaTitle":"Siemens 3VA2140-7MN32-0AA0 SENTRON MCCB, 40 A, 3-Pole, Motor","metaDescription":"Siemens 3VA2140-7MN32-0AA0 SENTRON molded case circuit breaker, 40 A rated, 3-pole, motor protection design with adjustable trip class 10A/10E/20E. Breaking capacity 330 kA at 240","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":"3VA2140-7MN32-0AA0","Height":"181 mm","Maximum":"17 s","Minimum":"4 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 ETU350M, LSI, In=40A overload protection Ir=16A...40A short-circuit protection Isd=3...15 x Ir, Ii=15 x In nut keeper kit","Trip Indicator":"No","Number Of Poles":"3","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Design Of The Product":"Motor protection","Communication Function":"No","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":"No","Ground-Fault Monitoring Version":"Without","Continuous Current / Rated Value":"40 A","Insulation Voltage / Rated Value":"800 V","adjustable trip class (Tc CLASS)":"10A, 10E, 20E","Design Of The Overcurrent Release":"ETU350M","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":"No","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":"LSI","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=569518&mlfb=3VA2140-7MN32-0AA0"},"ai":{"faq":[{"question":"Will 3VA2140-7MN32-0AA0 drop into a panel specified around 3VA2040-8HN42-0AA0 without rewiring?","answer":"Both are 3-pole 40 A SENTRON MCCBs in the same 3VA2 frame family, so the footprint (105 x 181 x 86 mm) and mounting pattern are identical. The 3VA2140-7MN32-0AA0 is the motor-protection variant with adjustable trip class; the 3VA2040-8HN42-0AA0 is a different trip curve variant. Physically they swap, but verify the trip settings match your motor's starting requirements before committing the BOM line."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2140-7MN32-0AA0","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/3VA2140-7MN32-0AA0 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}}