{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2140-7HM36-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2140-7HM36-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2140-7HM36-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2140-7HM36-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON series, molded case circuit breaker, order code 3VA2140-7HM36-0AA0, 3-pole, 40 A continuous rating, line protection design, breaking capacity 330 kA at 240 V.","salesMarkdown":"It carries an insulation voltage rating of 800 V and delivers a breaking capacity of 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 3.7 kA at 690 V — so it handles high-fault-current panels at the lower distribution voltages common in North American and European industrial plants, while the 690 V figure covers the reduced duty at higher line voltages. ## Thermal performance and derating The continuous current rating holds flat at 40 A from 40 °C all the way up to 70 °C ambient — no derating needed across the full operating temperature range of -25 °C to 70 °C. That simplifies panel design in warm enclosures or near heat sources. Power loss is 1.6 W maximum at rated load. ## Ground-fault monitoring and physical fit This MCCB includes summation-current ground-fault monitoring on the L-conductor — it measures the vector sum of phase currents to detect leakage to ground, which is useful for personnel protection and equipment protection in ungrounded or resistance-grounded systems.","metaTitle":"Siemens 3VA2140-7HM36-0AA0 SENTRON MCCB, 40 A, 3-Pole, 330 k","metaDescription":"Siemens SENTRON 3VA2140-7HM36-0AA0 molded case circuit breaker, 40 A continuous, 3-pole, line protection. Breaking capacity 330 kA at 240 V. Current lifecycle stage. Quoted on requ","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","title":"3VA2140-7HM36-0AA0","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","description":"circuit breaker 3VA2 IEC frame 160 breaking capacity class C Icu=110kA @ 415V 3-pole, line protection ETU330, LIG, In=40A overload protection Ir=16A...40A short-circuit protection Ii=1.5...12 x In ground-fault protection Ig=0.4... 1 x In, tg=0.1/0.3s clamp connection","Initial Value":"16 A","Trip Indicator":"No","Number Of Poles":"3","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":"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":"Summation current formation L-conductor","Continuous Current / Rated Value":"40 A","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"ETU330","protection class IP / on the front":"IP40","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":"LIG","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,"stockQuantity":0,"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=525813&mlfb=3VA2140-7HM36-0AA0"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA2140-7HM36-0AA0 at 240 V?","answer":"The breaking capacity is 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 3.7 kA at 690 V."},{"question":"Where can I buy 3VA2140-7HM36-0AA0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2140-7HM36-0AA0","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/3VA2140-7HM36-0AA0 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}}