{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2040-8HL42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2040-8HL42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2040-8HL42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2040-8HL42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2 series, Molded case circuit breaker, 3VA2040-8HL42-0AA0, 40 A, 4-pole, ETU320 electronic trip unit, 440 kA at 240 V AC, IP40 front.","salesMarkdown":"## SENTRON 3VA2 — 40 A line protection MCCB with ETU320 Breaking capacity is 440 kA at 240 V AC, 330 kA at 415 V and 440 V, 220 kA at 500 V, and 52.5 kA at 690 V — figures that place it well into the high-interrupting category for industrial service-entrance or sub-distribution boards where fault currents are substantial. The breaker has no undervoltage release, no voltage trigger, and no communication function — it is a pure line-protection device. Ground-fault monitoring is not integrated; if GF protection is needed, pair it with an external module or specify a different variant. ## ETU320 trip unit — what it means for coordination The ETU320 is an electronic trip unit with adjustable overload (Ir) and short-circuit (Isd, Ii) thresholds, plus a time-delay setting for short-delay (tsd). That adjustability lets the site electrical engineer tune selectivity with downstream breakers without swapping trip packs — a practical advantage over fixed thermal-magnetic units when the load profile or fault-current study changes after commissioning.","metaTitle":"Siemens 3VA2040-8HL42-0AA0 SENTRON MCCB, 40 A, 4-Pole, ETU32","metaDescription":"Siemens 3VA2040-8HL42-0AA0 SENTRON molded case circuit breaker, 40 A rated, 4-pole, ETU320 trip unit, 440 kA at 240 V. Active production. Quoted on request.","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","title":"3VA2040-8HL42-0AA0","Height":"181 mm","Maximum":"480 A","Minimum":"60 A","at 240 V":"440 kA","at 415 V":"330 kA","at 440 V":"330 kA","at 500 V":"220 kA","at 690 V":"52.5 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","description":"circuit breaker 3VA2 IEC frame 100 breaking capacity class L Icu=150kA @ 415V 4-pole, line protection ETU320, LI, In=40A overload protection Ir=16A...40A short-circuit protection Ii=1.5...12 x In N conductor protection adjustable (OFF, 100%) nut keeper kit","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":"L","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/5b5845c8f5d42259953c90438e38906f.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=500869&mlfb=3VA2040-8HL42-0AA0"},"ai":{"faq":[{"question":"Who supplies 3VA2040-8HL42-0AA0 and how is it quoted for volume purchases?","answer":"We source this part through independent distribution channels and quote it to order against an RFQ. Availability and current pricing are confirmed at quote time — send the quantity and target delivery window for a firm offer."},{"question":"What compliance documentation does Siemens provide for 3VA2040-8HL42-0AA0?","answer":"Siemens SENTRON MCCBs are typically supplied with CE, UL, and IEC certifications, plus RoHS and REACH declarations. The specific documentation package for this order code can be included with the shipment or provided digitally upon request."},{"question":"What are the key ratings for 3VA2040-8HL42-0AA0?","answer":"Rated continuous current is 40 A, insulation voltage 800 V, breaking capacity 440 kA at 240 V AC and 330 kA at 415/440 V. It is a 4-pole unit with an ETU320 electronic trip unit, IP40 front protection, and dimensions 181 x 140 x 86 mm."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2040-8HL42-0AA0","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/3VA2040-8HL42-0AA0 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}}