{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2140-6JQ46-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2140-6JQ46-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2140-6JQ46-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2140-6JQ46-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2140-6JQ46-0AA0, molded case circuit breaker, 4-pole, 40 A rated, 242 kA breaking capacity at 240 V, line protection design.","salesMarkdown":"It carries a 242 kA breaking capacity at 240 V, dropping to 187 kA at 415 V and 440 V, 121 kA at 500 V, and 3.7 kA at 690 V — the high short-circuit ratings at lower voltages suit it for fault-current-heavy installations like transformer secondaries or main feeders. Ground-fault monitoring is built in via summation current formation on L + N conductors, so it handles both overcurrent protection and ground-fault detection in a single device — no separate GFCI module needed on the load side. The 40 A full-scale value is the breaker's continuous current rating at 40 °C through 70 °C — per the datasheet, it holds 40 A across that entire ambient range (–), so no derating curve to calculate for typical panel interiors up to 70 °C. The adjustable thermal-magnetic trip range spans 60 A minimum to 480 A maximum, which means the magnetic instantaneous pickup can be set anywhere within that window; for a 40 A frame, the 60 A minimum is the lowest short-circuit trip threshold available. The 86 mm depth and 140 mm width are the panel cutout dimensions you need to verify against your existing busbar and mounting footprint; the 181 mm height clears most standard distribution panelboards. ## Integration notes for panel builders The communication function enables remote monitoring or integration with a BMS or SCADA system via the SENTRON communication modules; verify the specific protocol (PROFIBUS, PROFINET, Modbus) against your controller's fieldbus before specifying the add-on module. Ground-fault monitoring via summation current uses the L + N conductor loop — no external CT required, but the neutral must pass through the breaker's internal sensor. The 1.6 W power loss is low enough that no forced ventilation is needed for a single unit, but in a multi-breaker lineup, sum the losses and check the enclosure's thermal dissipation rating.","metaTitle":"Siemens 3VA2140-6JQ46-0AA0 SENTRON MCCB, 4P, 40A, 242kA at 2","metaDescription":"Siemens SENTRON 3VA2140-6JQ46-0AA0 molded case circuit breaker, 4-pole, 40 A continuous, 242 kA breaking capacity at 240 V. Line protection design with ground-fault monitoring. Act","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":"242 kA","at 415 V":"187 kA","at 440 V":"187 kA","at 500 V":"121 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","Initial Value":"16 A","Trip Indicator":"No","Number Of Poles":"4","Voltage Trigger":"No","lifecycle_stage":"current","Full-Scale Value":"40 A","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Design Of The Product":"Line protection","Communication Function":"Yes","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":"Summation current formation L + N conductor","Continuous Current / Rated Value":"40 A","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"ETU560","protection class IP / on the front":"IP40","design of the N-conductor protection":"adjustable OFF; 40% to 160%","Product Function / Grounding Protection":"Yes","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":"LSIG","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"H","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=44057&mlfb=3VA2140-6JQ46-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2140-6JQ46-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2140-6JQ46-0AA0 and get a price?","answer":"This part is sourced to order against an RFQ through independent distribution. Submit a request for quote (RFQ) to confirm current availability and pricing — no stock count or price figure is published here."},{"question":"What are the key ratings for 3VA2140-6JQ46-0AA0?","answer":"It is a 4-pole MCCB rated 40 A continuous, with a breaking capacity of 242 kA at 240 V, 187 kA at 415/440 V, 121 kA at 500 V, and 3.7 kA at 690 V. The adjustable trip range is 60 A minimum to 480 A maximum. Insulation voltage is rated 800 V."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2140-6JQ46-0AA0","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/3VA2140-6JQ46-0AA0 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}}