{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1450-7EF32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1450-7EF32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1450-7EF32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1450-7EF32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1450-7EF32-0AA0, molded case circuit breaker, 3-pole, 500 A, TM240 thermal-magnetic release, line protection design.","salesMarkdown":"The Siemens 3VA1450-7EF32-0AA0 is a SENTRON molded case circuit breaker rated 500 A continuous at 40 °C through 50 °C, with a TM240 thermal-magnetic overcurrent release. Three poles, 248 mm tall by 138 mm wide by 110 mm deep. That 138 mm width is about 8 standard DIN modules — plan your gland-plate knockouts and busbar drop accordingly. At full load it dissipates 122.7 W, so in a packed enclosure you'll want a thermal model or at least a vent slot above it. ## What the interrupting ratings mean for fault duty This breaker clears 440 kA at 240 V, 242 kA at 415 V and 440 V, 154 kA at 500 V, and 17 kA at 690 V. Those are the maximum prospective fault currents it can interrupt without welding or rupturing — the 440 kA figure at 240 V covers high-fault industrial services; the 17 kA at 690 V still handles most 690 V distribution. The SCCR of the panel is limited by the lowest-rated device downstream, so this breaker is rarely the weak link. ## Thermal derating — where the 500 A holds and where it tapers At 55 °C it derates to 488 A, at 60 °C to 476 A, at 65 °C to 464 A, and at 70 °C to 452 A.","metaTitle":"Siemens 3VA1450-7EF32-0AA0 SENTRON MCCB, 500 A, 3-Pole, TM24","metaDescription":"Siemens SENTRON 3VA1450-7EF32-0AA0 molded case circuit breaker, 500 A continuous, 3-pole, TM240 release. 440 kA at 240 V interrupting. Current production. Sourced to order against","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"110 mm","Width":"138 mm","Height":"248 mm","Maximum":"5 000 A","Minimum":"2 500 A","at 240 V":"440 kA","at 415 V":"242 kA","at 440 V":"242 kA","at 500 V":"154 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]":"5.43 in","Height [In]":"9.76 in","Trip Indicator":"No","Number Of Poles":"3","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","Continuous Current / Rated Value":"500 A","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","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","operating voltage / at DC / rated value":"500 V","reference code / according to IEC 81346-2":"Q","Continuous Current / Rated Value / Maximum":"630 A","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":"C","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,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/652dc2e3154d946098b35d4b0257c486.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1093778&mlfb=3VA1450-7EF32-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1450-7EF32-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting rating of this MCCB at 240 V?","answer":"440 kA at 240 V. It also clears 242 kA at 415 V and 440 V, 154 kA at 500 V, and 17 kA at 690 V."},{"question":"What does TM240 mean on this breaker?","answer":"TM240 designates the thermal-magnetic overcurrent release — a fixed thermal trip curve paired with a magnetic instantaneous pickup. It's a standard line-protection release, not field-adjustable for electronic trip profiles."},{"question":"How do I get pricing and availability for this part?","answer":"Submit an RFQ through the storefront. The part is sourced to order through independent distribution; current pricing and stock are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1450-7EF32-0AA0","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/3VA1450-7EF32-0AA0 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}}