{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1332-6EF32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1332-6EF32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1332-6EF32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1332-6EF32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1332-6EF32-0AA0, molded case circuit breaker, 3-pole, 320 A, TM240 overcurrent release, line protection design, 220 kA breaking capacity at 240 V.","salesMarkdown":"The Siemens SENTRON 3VA1332-6EF32-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying 320 A continuously at 40 °C and holding that same rating through 50 °C — only then does it begin a gentle derating curve: 313 A at 55 °C, stepping down to 292 A at 70 °C. Breaking capacity is where this MCCB earns its keep for high-fault installations. At 240 V it interrupts 220 kA; at 415 V and 440 V it still holds 154 kA, dropping to 121 kA at 500 V and 17 kA at 690 V. It is a straightforward, field-reliable choice for a feeder or main where you do not need adjustable trip curves or remote signaling. The breaker measures 248 mm high by 138 mm wide by 110 mm deep, which is the standard 3VA frame footprint; it drops into the same mounting pattern as other 3VA three-pole breakers in this frame class. ## Integration notes Power loss at full rated current is 80.1 W maximum, so factor that into your enclosure thermal calculation; a 320 A breaker dumping 80 W inside a sealed cabinet raises the internal temperature by several degrees and shifts the derating curve you saw above. If your circuit requires remote trip or status feedback, you will need to add the appropriate accessory module from the 3VA system — the basic breaker is a standalone thermal-magnetic device with no auxiliary contacts or trip indicator.","metaTitle":"Siemens 3VA1332-6EF32-0AA0 SENTRON MCCB, 320 A, 3-Pole, Line","metaDescription":"Siemens SENTRON 3VA1332-6EF32-0AA0 molded case circuit breaker, 320 A, 3-pole, TM240 release, 220 kA at 240 V. Active production, sourced to order. Request quote.","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":"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":"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]":"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":"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","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","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,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/da8a0d76b2b2f6a00909115038344cf8.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=568992&mlfb=3VA1332-6EF32-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1332-6EF32-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 3VA1332-6EF32-0AA0 and what is the lead time?","answer":"This part is sourced and quoted to order through independent distribution. Submit an RFQ for current availability and pricing; lead time is confirmed at quote time and varies with order quantity and supply conditions."},{"question":"What is the breaking capacity of the 3VA1332-6EF32-0AA0 at different voltages?","answer":"At 240 V it interrupts 220 kA; at 415 V and 440 V it holds 154 kA; at 500 V it is rated for 121 kA; and at 690 V it drops to 17 kA. The high 220 kA figure at 240 V makes it suitable for service-entrance or transformer-secondary applications with very high available fault current."},{"question":"What does the TM240 release designation mean?","answer":"TM240 indicates a thermal-magnetic fixed-trip overcurrent release set at 240 A. The thermal element protects against sustained overloads; the magnetic element trips instantaneously on short-circuit currents above the magnetic pickup threshold."},{"question":"Will the 3VA1332-6EF32-0AA0 fit in a panel designed for a 3VA1110-5ED32-0AA0?","answer":"Both breakers share the same 3VA three-pole frame footprint — 248 mm high, 138 mm wide, 110 mm deep — so the mechanical mounting and bus-bar spacing are identical. The electrical ratings differ (the 3VA1110-5ED32-0AA0 is a lower-current variant), but the physical drop-in is the same."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1332-6EF32-0AA0","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/3VA1332-6EF32-0AA0 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}}