{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2040-7HL42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2040-7HL42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2040-7HL42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2040-7HL42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2040-7HL42-0AA0, molded case circuit breaker, 4-pole, 40 A continuous, ETU320 electronic trip unit, adjustable 60–480 A, SCCR 330 kA at 240 V.","salesMarkdown":"The Siemens SENTRON 3VA2040-7HL42-0AA0 is a 4-pole molded case circuit breaker (MCCB) rated for 40 A continuous current across the full ambient range from -25 °C to 70 °C — no derating needed up to that ceiling. The interrupting ratings are per the evidence: 330 kA at 240 V, 242 kA at 415/440 V, 187 kA at 500 V, and 3 kA at 690 V. The 4-pole width (140 mm) is standard for a 4-pole MCCB in this frame size; it mounts via the front-panel cutout with screw terminals. The IP40 front protection means it's suitable for installation in a dry indoor enclosure where tools or fingers won't contact live parts from the front.","metaTitle":"Siemens 3VA2040-7HL42-0AA0 SENTRON MCCB, 40 A, 4-Pole, ETU32","metaDescription":"Siemens SENTRON 3VA2040-7HL42-0AA0 molded case circuit breaker, 40 A continuous, 4-pole, ETU320 electronic trip unit. Adjustable 60-480 A. SCCR 330 kA at 240 V. Current lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"86 mm","Width":"140 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]":"5.51 in","Height [In]":"7.13 in","Trip Indicator":"No","Number Of Poles":"4","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Design Of The Product":"Line protection","Communication Function":"No","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":"Without","Continuous Current / Rated Value":"40 A","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"ETU320","protection class IP / on the front":"IP40","design of the N-conductor protection":"adjustable OFF; 100%","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":"100 A","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"LI","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/5749ebb583c9e79c911a48b6e300e860.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=86482&mlfb=3VA2040-7HL42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2040-7HL42-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2040-7HL42-0AA0 and what is the lead time?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock count or lead-time number is published here."},{"question":"What is the closest functional second-source to 3VA2040-7HL42-0AA0?","answer":"The closest peer in the same SENTRON 3VA family is the 3VA2025-8HM42-0AA0, which is also a 4-pole MCCB but with a different trip unit and rating. The 3VA2040-7HL42-0AA0 uses the ETU320 electronic trip with a 40 A continuous rating and adjustable 60–480 A range; the 3VA2025-8HM42-0AA0 has a different trip curve and lower continuous rating. They share the same frame footprint, so a panel cutout designed for one will accept the other, but the protection settings differ — verify coordination before swapping."},{"question":"What is the depth of 3VA2040-7HL42-0AA0?","answer":"The depth is 86 mm (3.39 in)."},{"question":"What is the width of 3VA2040-7HL42-0AA0?","answer":"The width is 140 mm (5.51 in)."},{"question":"Will 3VA2040-7HL42-0AA0 drop into a panel specified around 3VA2025-8HM42-0AA0 without rewiring?","answer":"Yes, the 4-pole frame footprint is the same across the 3VA2xxx-xxx42-0AA0 variants, so the physical cutout and mounting dimensions are identical. The terminal layout and bus-bar connections are compatible. However, the trip unit and continuous rating differ — the 3VA2040-7HL42-0AA0 carries a 40 A continuous rating with the ETU320 electronic trip adjustable 60–480 A, while the 3VA2025-8HM42-0AA0 has a different trip curve. Verify the protection settings match the circuit requirements before installation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2040-7HL42-0AA0","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/3VA2040-7HL42-0AA0 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}}