{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2040-4JQ32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2040-4JQ32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2040-4JQ32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2040-4JQ32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2040-4JQ32-0AA0, molded case circuit breaker, 3-pole, 40 A, ETU560 electronic overcurrent release, 121 kA at 240 V, 75.6 kA at 415 V, IP40 front, line protection.","salesMarkdown":"The Siemens SENTRON 3VA2040-4JQ32-0AA0 is a 3-pole molded case circuit breaker rated for 40 A continuous at 40 °C through 70 °C — no derating needed across that full ambient range, which simplifies panel design in warm enclosures. The interrupting capacity hits 121 kA at 240 V AC and 75.6 kA at 415 V AC, so it handles high-fault scenarios typical of industrial distribution without cascading upstream. The ETU560 electronic trip unit provides adjustable N-conductor protection from OFF to 160 %, plus communication capability for integration into a monitored distribution system. The breaker measures 105 mm wide, 181 mm high, and 86 mm deep — a standard 3-pole MCCB footprint for the SENTRON 3VA platform. The 105 mm width fits a typical 4-module DIN-rail or panel-mount cutout. Front IP40 protection means it's suitable for general indoor panel use but not washdown areas. The 40 A frame with 121 kA SCCR at 240 V gives substantial headroom for transformer-fed panels.","metaTitle":"Siemens 3VA2040-4JQ32-0AA0 SENTRON MCCB, 40 A, 3-Pole, ETU56","metaDescription":"Siemens SENTRON 3VA2040-4JQ32-0AA0 molded case circuit breaker, 40 A, 3-pole, ETU560 release, 121 kA at 240 V. Current lifecycle. Sourced to order against RFQ. Quoted on request.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"86 mm","Width":"105 mm","Height":"181 mm","at 240 V":"121 kA","at 415 V":"75.6 kA","at 440 V":"75.6 kA","at 500 V":"52.5 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","Trip Indicator":"No","Number Of Poles":"3","Product version":"Line protection","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Communication Function":"Yes","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"2.2 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","rated insulation voltage Ui":"800 V","Courant permanent assigné Iu":"40 A","Ground-Fault Monitoring Version":"Summation current formation L-conductor","Design Of The Overcurrent Release":"ETU560","protection class IP / on the front":"IP40","design of the N-conductor protection":"adjustable OFF; 40% to 160%","operating voltage / at AC / rated value":"690 V","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"Yes","Adjustable response value current / lg max.":"40 A","Adjustable response value current / lg min.":"16 A","Adjustable response value current / li max.":"480 A","Adjustable response value current / li min.":"60 A","Neutral conductors / upgradeable/retrofittable":"Yes","Protection Function Of The Overcurrent Release":"LSIG","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"S","Max. rated operational current of the frame size":"100 A","Mechanical Service Life (Switching 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","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"25 x 8 mm","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"13 x 1 mm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/c5013b8658bbd2e21a24fa9daf5e4a88.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=57762&mlfb=3VA2040-4JQ32-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2040-4JQ32-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2040-4JQ32-0AA0 and get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current availability and pricing — confirmed at quote time."},{"question":"What is the closest functional second-source to 3VA2040-4JQ32-0AA0?","answer":"The 3VA2140-8JQ42-0AA0 is a functional peer within the same SENTRON 3VA platform, but it carries a different trip unit and accessory configuration. Verify the trip curve and communication requirements before substituting — the ETU560 release and communication function on this variant are specific to the -4JQ32-0AA0 order code."},{"question":"Will 3VA2040-4JQ32-0AA0 drop into a panel specified for 3VA2140-8JQ42-0AA0 without rewiring?","answer":"Both share the same 3VA platform and 3-pole footprint, so the mechanical fit and busbar connections are identical. The difference is in the trip unit and communication options — the -4JQ32-0AA0 uses an ETU560 with communication function; the 3VA2140-8JQ42-0AA0 may have a different release. No rewiring needed, but verify the protection settings match your coordination study."},{"question":"What compliance documentation does Siemens provide for 3VA2040-4JQ32-0AA0?","answer":"Siemens SENTRON 3VA breakers are typically supplied with IEC 60947-2 certification, CE marking, and UL/CSA listings depending on the variant. RoHS and REACH declarations are available through Siemens Industry Online Support. Specific approvals for this order code should be confirmed against the nameplate marking."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2040-4JQ32-0AA0","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/3VA2040-4JQ32-0AA0 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}}