{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2040-7JQ32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2040-7JQ32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2040-7JQ32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2040-7JQ32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON series, molded case circuit breaker, order code 3VA2040-7JQ32-0AA0, 40 A continuous rating, 3-pole, 480 A maximum interrupt capacity, 330 kA breaking at 240 V.","salesMarkdown":"It carries a maximum interrupt capacity of 480 A, with breaking capacities of 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 3 kA at 690 V — so the same breaker handles different fault-current levels across common industrial voltages without swapping frames. ## Thermal performance across the panel ambient range That simplifies panel thermal budgeting: you don't have to oversize the breaker for a 50 °C switchroom or a cabinet sitting next to a drive. ## Built-in communication and ground-fault monitoring That saves an external ground-fault relay in panels where earth-leakage detection is required.","metaTitle":"Siemens 3VA2040-7JQ32-0AA0 SENTRON MCCB, 40 A, 3-Pole, 480 A","metaDescription":"Siemens SENTRON 3VA2040-7JQ32-0AA0 molded case circuit breaker, 40 A continuous, 3-pole, 480 A max interrupt. Breaking capacity 330 kA at 240 V. Current lifecycle stage. Quoted to","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":"480 A","Minimum":"60 A","at 240 V":"330 kA","at 415 V":"242 kA","at 440 V":"242 kA","at 500 V":"187 kA","at 690 V":"3 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","Initial Value":"16 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":"Line protection","Communication Function":"Yes","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"1.2 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Ground-Fault Monitoring Version":"Summation current formation L-conductor","Continuous Current / Rated Value":"40 A","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"ETU560","protection class IP / on the front":"IP40","design of the N-conductor protection":"adjustable OFF; 40% to 160%","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":"100 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,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/cb824824a9347950e71cda66589ccac0.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=486186&mlfb=3VA2040-7JQ32-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2040-7JQ32-0AA0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA2040-7JQ32-0AA0?","answer":"Submit an RFQ through this listing. The part is sourced to order via independent distribution; pricing and stock levels are confirmed at quote time — no automated price or lead-time figure is published here."},{"question":"What is the closest functional alternative to 3VA2040-7JQ32-0AA0?","answer":"The 3VA2140-8JQ32-0AA0 is a peer in the same SENTRON family. Both are 40 A, 3-pole MCCBs with similar breaking capacities. The 3VA2140 variant uses a different trip-unit generation; verify the trip-characteristic curve and accessory compatibility before substituting into an existing panel design."},{"question":"What are the physical dimensions of 3VA2040-7JQ32-0AA0?","answer":"Depth is 86 mm, width is 105 mm, height is 181 mm — standard MCCB footprint for a 3-pole frame in this class."},{"question":"Will 3VA2040-7JQ32-0AA0 drop into a panel designed for 3VA2140-8JQ32-0AA0?","answer":"The external dimensions are the same for both order codes — 86 mm depth, 105 mm width, 181 mm height — so the mechanical fit is identical. The difference is internal trip-unit electronics; check the trip curve and accessory wiring before swapping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2040-7JQ32-0AA0","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/3VA2040-7JQ32-0AA0 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}}