{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2040-5HM36-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2040-5HM36-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2040-5HM36-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2040-5HM36-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON molded case circuit breaker, 3VA2040-5HM36-0AA0, 3-pole, 40 A continuous, adjustable thermal-magnetic trip 60–480 A, 187 kA at 240 V.","salesMarkdown":"The Siemens SENTRON 3VA2040-5HM36-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated for 40 A continuous current, with an adjustable thermal-magnetic trip unit covering 60 A to 480 A. That adjustable range means one breaker body covers multiple feeder sizes — you set the trip threshold to match the downstream load, not the other way around. The 187 kA interrupting rating at 240 V is the headline number, but the real-world fit depends on the available fault current at your service voltage: it holds 121 kA at 415 V and 440 V, drops to 75.6 kA at 500 V, and to 3 kA at 690 V. If your system runs at 480 V or below, this breaker handles most industrial fault levels without upstream fusing. At 690 V it's essentially a load-break switch — plan accordingly. ## Thermal performance — no derating headache No derating curve to calculate for warm enclosures, no summer-time nuisance trips. That's unusual for a thermal-magnetic breaker and simplifies panel design for hot environments like pump houses or enclosed switchgear.","metaTitle":"Siemens 3VA2040-5HM36-0AA0 SENTRON MCCB, 40 A, 60–480 A","metaDescription":"Siemens 3VA2040-5HM36-0AA0 SENTRON molded case circuit breaker, 40 A continuous, adjustable 60–480 A, 187 kA at 240 V. Current production. Quoted on request.","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":"187 kA","at 415 V":"121 kA","at 440 V":"121 kA","at 500 V":"75.6 kA","at 690 V":"3 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","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":"2.2 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":"100 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":"M","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/ccd5f9c8ef90a261ab64691bd0722f06.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=113671&mlfb=3VA2040-5HM36-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2040-5HM36-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the depth of this MCCB?","answer":"The 3VA2040-5HM36-0AA0 has a listed depth of 86 mm (3.39 in)."},{"question":"Will 3VA2040-5HM36-0AA0 drop into a panel designed for 3VA2140-8JQ32-0AA0?","answer":"Yes, both breakers share the same 105 mm width and 86 mm depth, so they fit the same panel cutout and mounting pattern without rewiring. The difference is in the trip unit — thermal-magnetic vs. electronic — not the physical footprint."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2040-5HM36-0AA0","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/3VA2040-5HM36-0AA0 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}}