{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1450-4EE42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1450-4EE42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1450-4EE42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1450-4EE42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1450-4EE42-0AA0, molded case circuit breaker, 4-pole, TM220 overcurrent release, 500 A rated at 40 °C, interrupting capacity 121 kA at 240 V.","salesMarkdown":"## Rated current and interrupting capacity The 3VA1450-4EE42-0AA0 is a Siemens SENTRON molded case circuit breaker rated 500 A at 40 °C, with the same rating holding through 50 °C and derating to 452 A at 70 °C — so in a warm panel you lose about 48 A off the top. The interrupting capacity is 121 kA at 240 V, 75.6 kA at 415 V and 440 V, 52.5 kA at 500 V, and 11.9 kA at 690 V; that 121 kA figure at 240 V means it handles a serious fault on a low-voltage distribution bus without the upstream breaker needing to coordinate. ## Overcurrent release and configuration The overcurrent release is the TM220 type — a thermal-magnetic design for line protection, meaning it uses a bimetal strip for overload and a magnetic coil for short-circuit, no electronic adjustment. It's a 4-pole breaker, rated insulation voltage 800 V, and the front carries IP40 protection (finger-safe but not sealed against dust ingress). The case measures 248 mm tall, 184 mm wide, 110 mm deep — that 184 mm width across 4 poles means a standard 4-pole MCCB footprint, so it drops into the same DIN-rail or panel-mount cutout as other SENTRON 4-pole frames. Depth at 110 mm leaves room for rear busbar connections in a typical 400 mm deep enclosure.","metaTitle":"Siemens 3VA1450-4EE42-0AA0 SENTRON MCCB, 500 A, 4-Pole, TM22","metaDescription":"Siemens 3VA1450-4EE42-0AA0 SENTRON molded case circuit breaker, 500 A rated at 40 °C, 4-pole, TM220 release, 121 kA at 240 V. Current lifecycle stage. Available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"110 mm","Width":"184 mm","title":"3VA1450-4EE42-0AA0","Height":"248 mm","Maximum":"0 A","Minimum":"0 A","at 240 V":"121 kA","at 415 V":"75.6 kA","at 440 V":"75.6 kA","at 500 V":"52.5 kA","at 690 V":"11.9 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 S Icu=36kA @ 415V 4-pole, line protection TM220, ATFM, In=500A overload protection Ir=350A...500A short-circuit protection Ii=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":"TM220","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":"S","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/2ee9e8437587e2c03b2bac66f722f2b6.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=690419&mlfb=3VA1450-4EE42-0AA0"},"ai":{"faq":[{"question":"Where can I buy 3VA1450-4EE42-0AA0 and how do I get a price?","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 — submit an RFQ for a firm price and delivery window."},{"question":"What is 3VA1450-4EE42-0AA0's rated current and how does it derate with temperature?","answer":"Rated 500 A at 40 °C, holds 500 A through 50 °C, then derates to 488 A at 55 °C, 476 A at 60 °C, 464 A at 65 °C, and 452 A at 70 °C."},{"question":"What is the interrupting capacity of this MCCB at different voltages?","answer":"121 kA at 240 V, 75.6 kA at 415 V and 440 V, 52.5 kA at 500 V, and 11.9 kA at 690 V."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1450-4EE42-0AA0","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/3VA1450-4EE42-0AA0 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}}