{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2140-7HK46-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2140-7HK46-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2140-7HK46-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2140-7HK46-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2 series, molded case circuit breaker, 3VA2140-7HK46-0AA0, 40 A, 4-pole, ETU340 electronic trip unit, 330 kA interrupting capacity at 240 VAC.","salesMarkdown":"At 415 V it's still rated for 242 kA, and it holds 187 kA at 500 V. Only at 690 V does it drop to 3.7 kA — that's the voltage limit for this frame's arc extinction. The ETU340 electronic trip unit provides adjustable protection curves. Power loss is 1.6 W maximum at rated load. That's low enough that you don't need to derate adjacent devices in a crowded panel, but it's still real heat — keep ventilation slots clear. ## What it doesn't have (and why that's fine) This is a bare-bones line-protection breaker — you add accessories externally if needed. The ETU340 handles the adjustable protection curves; everything else is a field-installable option.","metaTitle":"3VA2140-7HK46-0AA0 SENTRON MCCB, 40 A, 4-Pole, 330 kA at 240","metaDescription":"Siemens 3VA2140-7HK46-0AA0 SENTRON molded case circuit breaker, 40 A rated, 4-pole, ETU340 trip unit, 330 kA interrupting at 240 VAC. 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":"140 mm","Height":"181 mm","Maximum":"600 A","Minimum":"600 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]":"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":"1.6 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":"ETU340","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":"ELISA 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":"double-sided box terminal","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=239266&mlfb=3VA2140-7HK46-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2140-7HK46-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Will the 3VA2140-7HK46-0AA0 fit in a panel designed for the 3VA2163-8HM32-0AA0?","answer":"Both are 4-pole SENTRON 3VA2 breakers on the same frame size — same 140 mm width, same 181 mm height, same 86 mm depth. The terminal layout and mounting pattern are identical, so it drops into the same panel footprint without rewiring."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2140-7HK46-0AA0","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/3VA2140-7HK46-0AA0 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}}