{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2140-7HL32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2140-7HL32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2140-7HL32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2140-7HL32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA series, molded case circuit breaker, 3VA2140-7HL32-0AA0, 40 A, 3-pole, ETU320 electronic trip unit, line protection design.","salesMarkdown":"The Siemens SENTRON 3VA2140-7HL32-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated for 40 A continuous current, designed specifically for line protection — meaning it sits at the feeder or branch to protect cables and busbars from overloads and short circuits, not motor or generator protection. The interrupting capacity is the headline number here: 330 kA at 240 V AC, 242 kA at 415 V and 440 V, 187 kA at 500 V, and still 3.7 kA at 690 V. Dimensions are 181 mm high, 105 mm wide, 86 mm deep. That 105 mm width is a standard 3-pole MCCB footprint for a SENTRON 3VA frame — it drops into a panel that was laid out for a 3VA1110 or similar without bracket changes. Rated insulation voltage is 800 V, so it's comfortable on 480 V and 600 V class systems with margin to spare. ## Thermal performance and power loss The breaker holds its full 40 A rating across the entire operating temperature range from -25 °C to 70 °C — no derating needed up to the max. That is unusual; many MCCBs start derating above 40 °C. This one doesn't, which simplifies panel design in hot environments. That is low enough that you won't need to add extra ventilation for a single breaker, but cluster several in a small enclosure and you should still sum the heat load.","metaTitle":"Siemens SENTRON 3VA2140-7HL32-0AA0 MCCB, 40 A, 3-Pole, 240 V","metaDescription":"Siemens SENTRON 3VA2140-7HL32-0AA0 molded case circuit breaker, 40 A continuous, 3-pole, ETU320 release. Interrupting capacity 330 kA at 240 V. Active production, sourced to order.","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":"3.7 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","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":"1.6 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","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":"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/cda978e31ec81fb539d5632cb59bd0b3.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=4464&mlfb=3VA2140-7HL32-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2140-7HL32-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What trip unit does 3VA2140-7HL32-0AA0 use?","answer":"It uses the ETU320 electronic trip unit, which provides adjustable overload and short-circuit protection settings."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2140-7HL32-0AA0","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/3VA2140-7HL32-0AA0 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}}