{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2040-5JP46-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2040-5JP46-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2040-5JP46-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2040-5JP46-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2040-5JP46-0AA0, molded case circuit breaker, 4-pole, 40 A, ETU550 electronic trip unit, line protection design.","salesMarkdown":"The 4-pole configuration covers three-phase plus neutral, common in North American and IEC distribution where the neutral needs switching or isolation. This breaker's interrupting capacity varies sharply with system voltage, which is the spec you need to match to your available fault current. At 240 V it's rated 187 kA — plenty for most secondary distribution. At 500 V it drops to 75.6 kA, and at 690 V it's only 3 kA. If your service is 480 V, the 121 kA at 440 V is the closest published figure; the 690 V number tells you this is not a 690 V main breaker. ## ETU550 trip unit and communication The ETU550 is an electronic trip unit — adjustable, with curve shaping and communication capability onboard. That communication function means it can talk to a BMS or PLC for power monitoring and trip event logging, not just passive protection. The trip indicator is not fitted, so you won't get a local mechanical flag; fault events are read through the communication channel or by checking the breaker position. No undervoltage release and no ground-fault monitoring version on this variant. If those functions are required, you'd look at a different suffix in the 3VA2 family. That width for a 4-pole frame is standard for this class — check your panel's backplate layout and phase-to-phase clearance.","metaTitle":"Siemens 3VA2040-5JP46-0AA0 SENTRON MCCB, 40 A, 4-Pole, ETU55","metaDescription":"Siemens SENTRON 3VA2040-5JP46-0AA0 molded case circuit breaker, 40 A continuous, 4-pole, ETU550 electronic trip. Breaking capacity 187 kA at 240 V. Active production, sourced to or","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":"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]":"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":"Yes","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":"Without","Continuous Current / Rated Value":"40 A","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"ETU550","protection class IP / on the front":"IP40","design of the N-conductor protection":"adjustable OFF; 40% to 160%","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":"100 A","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"LSI","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/bfd6dd6f3e727d6ece73a7174d00d346.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=323672&mlfb=3VA2040-5JP46-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2040-5JP46-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2040-5JP46-0AA0 and what is the lead time?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock count or lead-time number is published here, but the RFQ process returns both."},{"question":"What is the breaking capacity of this MCCB at 240 V?","answer":"At 240 V the interrupting rating is 187 kA. At 415 V and 440 V it's 121 kA, at 500 V it's 75.6 kA, and at 690 V it's 3 kA."},{"question":"Does this breaker have communication capability?","answer":"Yes, the ETU550 trip unit includes a communication function for integration with monitoring systems. There is no local trip indicator — fault events are read through the communication channel."},{"question":"What are the panel dimensions for 3VA2040-5JP46-0AA0?","answer":"Width 140 mm, height 181 mm, depth 86 mm. Front protection is IP40."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2040-5JP46-0AA0","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/3VA2040-5JP46-0AA0 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}}