{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1332-4EE32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1332-4EE32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1332-4EE32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1332-4EE32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1332-4EE32-0AA0, 3-pole molded case circuit breaker, 320 A continuous rated current, TM220 thermal-magnetic release, breaking capacity 121 kA at 240 V AC.","salesMarkdown":"## 320 A MCCB with TM220 release — selectivity and SCCR headroom The Siemens SENTRON 3VA1332-4EE32-0AA0 is a 3-pole molded case circuit breaker rated for 320 A continuous current at 40 °C ambient, with a TM220 thermal-magnetic overcurrent release. That TM220 designation means the thermal pickup is fixed at 320 A (the frame rating) and the magnetic short-circuit pickup is adjustable — typically 5–10× In, so 1 600–3 200 A instantaneous. This matters for panels mounted near heat sources or in non-climate-controlled enclosures — you size the copper and the enclosure ventilation for the actual ambient, not the nameplate. Breaking capacity is 121 kA at 240 V AC, dropping to 75.6 kA at 415/440 V, 52.5 kA at 500 V, and 11.9 kA at 690 V (–). That 121 kA at 240 V puts it in the high-interrupting category for North American 240/277 V distribution — suitable for large transformer secondaries or service-entrance applications where fault currents are high. At 415 V, the 75.6 kA covers most industrial main switchboard duties; the 690 V figure (11.9 kA) is the limiting case for 690 V drives or genset feeds. For DC networks, the manufacturer directs you to the 3VA device manual for switching power values. At 138 mm wide (5.43 in) and 248 mm tall (9.76 in), it occupies roughly the same footprint as a 400 A frame from the same SENTRON family. Depth is 110 mm (4.33 in). ## Lifecycle and sourcing — current production, quoted to order No last-time-buy or phase-out notice is on record. ## Comparison to 3VA1112-5EE32-0AA0 — frame size and breaking capacity delta The closest functional sibling is the 3VA1112-5EE32-0AA0, also a 3-pole 320 A MCCB but on a smaller frame. The key difference: the 3VA1112 uses an electronic (ETU) release, giving adjustable long-time, short-time, and ground-fault protection. The 3VA1332-4EE32-0AA0 with its TM220 thermal-magnetic release is simpler, cheaper, and faster to trip on short-circuit, but offers no ground-fault or short-time delay adjustment.","metaTitle":"Siemens SENTRON 3VA1332-4EE32-0AA0 MCCB, 320 A, 121 kA at 24","metaDescription":"Siemens SENTRON 3VA1332-4EE32-0AA0 molded case circuit breaker, 3-pole, 320 A rated, TM220 release. Breaking capacity 121 kA at 240 V, 75.6 kA at 415 V. Current production. Quoted","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"110 mm","Width":"138 mm","title":"3VA1332-4EE32-0AA0","Height":"248 mm","Maximum":"3 200 A","Minimum":"3 200 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]":"5.43 in","Height [In]":"9.76 in","description":"circuit breaker 3VA1 IEC frame 400 breaking capacity class S Icu=36kA @ 415V 3-pole, line protection TM220, ATFM, In=320A overload protection Ir=224A...320A short-circuit protection Ii=10 x In nut keeper kit","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","Continuous Current / Rated Value":"320 A","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","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":"400 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":"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/8338e11334dc9ccc3ab22f8495c2a0fd.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=690402&mlfb=3VA1332-4EE32-0AA0"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1332-4EE32-0AA0","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/3VA1332-4EE32-0AA0 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}}