{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1450-6EF42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1450-6EF42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1450-6EF42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1450-6EF42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1450-6EF42-0AA0, molded case circuit breaker, 4-pole, 500 A at 40 °C, TM240 overcurrent release, 220 kA breaking capacity at 240 V, line protection design.","salesMarkdown":"## What this 500 A MCCB delivers The Siemens 3VA1450-6EF42-0AA0 is a SENTRON molded case circuit breaker rated for 500 A continuous at 40 °C, with a TM240 thermal-magnetic overcurrent release. Its 4-pole construction and 220 kA interrupting capacity at 240 V make it a fit for high-fault main feeders or distribution panels where upstream coordination demands a high withstand rating. Rated insulation voltage is 800 V, and the breaker carries a 122.7 W maximum power loss at full load — a figure to factor into enclosure thermal management if the panel is tightly packed. Interrupting rating drops as system voltage rises: 220 kA at 240 V, 154 kA at 415 V and 440 V, 121 kA at 500 V, and 17 kA at 690 V. The 500 A rating holds from 40 °C through 50 °C. Above that it derates linearly: 488 A at 55 °C, 476 A at 60 °C, 464 A at 65 °C, and 452 A at 70 °C. Operating ambient range is -25 °C to 70 °C; storage range is -40 °C to 80 °C. Dimensions are 248 mm high, 184 mm wide, and 110 mm deep. The 4-pole form factor mounts in standard MCCB panel cutouts; verify the existing bus-bar spacing and lug kit compatibility before committing the BOM line.","metaTitle":"Siemens 3VA1450-6EF42-0AA0 SENTRON MCCB, 500 A, 4-Pole, 220","metaDescription":"Siemens 3VA1450-6EF42-0AA0 SENTRON molded case circuit breaker, 500 A rated at 40 °C, 4-pole, 220 kA breaking at 240 V. TM240 release, line protection. Current production. Quoted t","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"110 mm","Width":"184 mm","title":"3VA1450-6EF42-0AA0","Height":"248 mm","Maximum":"0 A","Minimum":"0 A","at 240 V":"220 kA","at 415 V":"154 kA","at 440 V":"154 kA","at 500 V":"121 kA","at 690 V":"17 kA","at 40 °C":"500 A","at 45 °C":"500 A","at 50 °C":"500 A","at 55 °C":"488 A","at 60 °C":"476 A","at 65 °C":"464 A","at 70 °C":"452 A","Depth [In]":"4.33 in","Width [In]":"7.24 in","Height [In]":"9.76 in","description":"circuit breaker 3VA1 IEC frame 630 breaking capacity class H Icu=70kA @ 415V 4-pole, line protection TM240, ATAM, In=500A overload protection Ir=350A...500A short-circuit protection Ii=5...10 x In N conductor unprotected nut keeper kit","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":"122.7 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Ground-Fault Monitoring Version":"Without","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"TM240","Design Of Short-Circuit Protection":"For switching power values in DC networks, see the 3VA molded case circuit breaker device manual; link to be found under Service & Support in the last chapter","protection class IP / on the front":"IP40","design of the N-conductor protection":"without","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","operating voltage / at DC / rated value":"600 V","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"LI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"H","Mechanical Service Life (Operating Cycles) / Typical":"20 000","Type Of Electrical Connection / For Main Current Circuit":"nut keeper kit on both ends","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/bb38cc5c4a67df1fe0c05333fa23bbf9.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=569023&mlfb=3VA1450-6EF42-0AA0"},"ai":{"faq":[{"question":"How do I get pricing and availability for 3VA1450-6EF42-0AA0?","answer":"Submit an RFQ through this listing. Availability and current pricing are confirmed at quote time through independent distribution channels."},{"question":"What is the breaking capacity of 3VA1450-6EF42-0AA0 at 415 V?","answer":"154 kA at 415 V, matching the rating at 440 V. At 240 V it reaches 220 kA, and at 690 V it drops to 17 kA."},{"question":"What does the TM240 release designation mean?","answer":"TM240 indicates a thermal-magnetic overcurrent release with a 240 A fixed thermal pickup and magnetic trip calibrated for the 500 A frame. It provides inverse-time overload protection and instantaneous short-circuit protection."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1450-6EF42-0AA0","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/3VA1450-6EF42-0AA0 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}}