{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1332-4EF42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1332-4EF42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1332-4EF42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1332-4EF42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1332-4EF42-0AA0, molded case circuit breaker, 4-pole, TM240 release, rated 320 A at 40 °C, breaking capacity 121 kA at 240 V.","salesMarkdown":"Its 320 A rating at 40 °C and 4-pole configuration suit it for three-phase plus neutral feeders in commercial or industrial switchboards. The TM240 thermal-magnetic release provides fixed overload and short-circuit protection — no adjustment, which simplifies specification but means the trip curve is set at the factory. Breaking capacity is 121 kA at 240 V, 75.6 kA at 415 V, and 52.5 kA at 500 V. At 690 V it still interrupts 11.9 kA — enough for most low-voltage motor control centers. The breaker holds 320 A up to 50 °C. Above that it derates linearly: 313 A at 55 °C, 306 A at 60 °C, 299 A at 65 °C, and 292 A at 70 °C. The 184 mm width and 248 mm height fit standard Siemens 3VA mounting bases; depth is 110 mm. Front IP40 means tools and fingers are protected, but the breaker is not sealed against washdown.","metaTitle":"Siemens 3VA1332-4EF42-0AA0 SENTRON MCCB, 320 A, 4-Pole, TM24","metaDescription":"Siemens 3VA1332-4EF42-0AA0 SENTRON molded case circuit breaker, 320 A at 40 °C, 4-pole, TM240 release, 121 kA at 240 V. Active production. Sourced to order.","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","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":"320 A","at 45 °C":"320 A","at 50 °C":"320 A","at 55 °C":"313 A","at 60 °C":"306 A","at 65 °C":"299 A","at 70 °C":"292 A","Depth [In]":"4.33 in","Width [In]":"7.24 in","Height [In]":"9.76 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":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"80.1 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":"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,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/a1d818f7e88b1b0cc3e7e2534a655dce.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=568984&mlfb=3VA1332-4EF42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1332-4EF42-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1332-4EF42-0AA0 and how do I get a price?","answer":"This part is sourced to order against an RFQ through independent distribution. Submit an RFQ for current availability and pricing."},{"question":"What is 3VA1332-4EF42-0AA0's rated current at typical panel temperatures?","answer":"It is rated 320 A at 40 °C, 45 °C, and 50 °C. Above 50 °C it derates: 313 A at 55 °C, 306 A at 60 °C, 299 A at 65 °C, and 292 A at 70 °C (–)."},{"question":"What breaking capacity does 3VA1332-4EF42-0AA0 offer at 240 V?","answer":"121 kA at 240 V. At 415 V and 440 V it is 75.6 kA, at 500 V it is 52.5 kA, and at 690 V it is 11.9 kA."},{"question":"Will 3VA1332-4EF42-0AA0 drop into a panel that was specified around 3VA1110-5ED32-0AA0 without rewiring?","answer":"Both are 4-pole SENTRON 3VA breakers, so the mounting base and busbar pattern are the same. The 3VA1332-4EF42-0AA0 is a higher-current frame (320 A vs the 3VA1110 frame's lower rating), so verify that the busbars and cable terminations are sized for 320 A before swapping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1332-4EF42-0AA0","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/3VA1332-4EF42-0AA0 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}}