{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2140-7MP32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2140-7MP32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2140-7MP32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2140-7MP32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2140-7MP32-0AA0, molded case circuit breaker, 3-pole, 40 A, motor protection design, adjustable trip class, communication function, breaking capacity 330 kA at 240 V.","salesMarkdown":"The 3-pole construction and adjustable trip class (selectable between 10A, 10/10E, 20/20E, and 30/30E) let you match the overload curve to the motor start profile, avoiding nuisance trips on high-inertia loads like conveyors or compressors. Breaking capacity is the headline number for a feeder MCCB: this unit delivers 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 3.7 kA at 690 V. At typical 400 V class industrial voltages, the 242 kA interrupting rating provides ample headroom for high-fault-capacity installations — think large transformer-fed switchboards or motor control centers with upstream transformers above 1 MVA. ## Motor protection features and communication This MCCB includes phase failure detection and a communication function, which allows remote monitoring or integration into a higher-level control system — useful for a plant-wide energy management or predictive maintenance scheme. The absence of an undervoltage release and ground-fault monitoring means those functions must be handled externally if required. The trip indicator is not fitted, so visual status at the breaker face is limited; rely on the communication link or auxiliary contacts (not included) for remote indication. Panel cutout and busbar spacing should match the 3VA2 footprint — if the existing panel was built for a 3VA1 or 3VA3 frame, the mounting holes and phase centers will differ. Check the depth clearance: 86 mm plus wiring space behind the door.","metaTitle":"Siemens 3VA2140-7MP32-0AA0 SENTRON MCCB, 40 A, 3-Pole, Motor","metaDescription":"Siemens SENTRON 3VA2140-7MP32-0AA0 molded case circuit breaker, 40 A continuous, 3-pole, motor protection design with adjustable trip class and communication function. Breaking cap","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","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","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":"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":"No","Ground-Fault Monitoring Version":"Without","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":"ETU550M","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,"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=1133440&mlfb=3VA2140-7MP32-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2140-7MP32-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA2140-7MP32-0AA0 at 415 V?","answer":"242 kA at 415 V (also at 440 V), dropping to 187 kA at 500 V and 3.7 kA at 690 V."},{"question":"Can 3VA2140-7MP32-0AA0 replace a 3VA2163-8JQ32-0AA0 in an existing panel?","answer":"No — the 3VA2140-7MP32-0AA0 is a 105 mm wide 3-pole frame, while the 3VA2163-8JQ32-0AA0 is a physically larger frame. It will not drop into the same mounting or busbar pattern without rewiring."},{"question":"What trip classes are available on this MCCB?","answer":"Adjustable trip class: 10A, 10/10E, 20/20E, and 30/30E, selectable to match motor start characteristics."},{"question":"Where can I buy 3VA2140-7MP32-0AA0 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2140-7MP32-0AA0","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/3VA2140-7MP32-0AA0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}