{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2140-8HL42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2140-8HL42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2140-8HL42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2140-8HL42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2140-8HL42-0AA0, molded case circuit breaker, 4-pole, 40 A continuous, ETU320 electronic trip unit, line protection design.","salesMarkdown":"The Siemens SENTRON 3VA2140-8HL42-0AA0 is a 4-pole molded case circuit breaker (MCCB) rated for 40 A continuous current, built around the ETU320 electronic trip unit. Breaking capacity runs from 440 kA at 240 V down to 52.5 kA at 690 V — the 440 kA figure at 240 V covers most North American service-entrance fault levels, while the 330 kA at 415 V handles European industrial mains. Dimensions are 181 mm high, 140 mm wide, and 86 mm deep — a standard SENTRON 3VA2 frame size that mounts on a DIN rail or panel-mount adapter in the switchgear enclosure. IP40 protection on the front face means it's suitable for general indoor panel use where no washdown or dust ingress is expected. Power loss is just 1.2 W at rated load, so thermal derating within a crowded enclosure is minimal. Continuous current is flat-rated at 40 A across the entire ambient range from 40 °C to 70 °C — no derating needed as the panel warms up, which simplifies panel design. Operating temperature range spans -25 °C to 70 °C, with storage from -40 °C to 80 °C, covering unheated warehouses and outdoor enclosures in temperate climates.","metaTitle":"Siemens 3VA2140-8HL42-0AA0 SENTRON MCCB, 40 A, 4-Pole, ETU32","metaDescription":"Siemens SENTRON 3VA2140-8HL42-0AA0 molded case circuit breaker, 40 A continuous, 4-pole, ETU320 trip unit, 440 kA at 240 V. Active production. Sourced to order against RFQ.","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":"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","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":"160 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,"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=142870&mlfb=3VA2140-8HL42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2140-8HL42-0AA0/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2140-8HL42-0AA0","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/3VA2140-8HL42-0AA0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}