{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1332-4EE42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1332-4EE42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1332-4EE42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1332-4EE42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1332-4EE42-0AA0, molded case circuit breaker, 4-pole, 320 A (at 40 °C), TM220 release, line protection, breaking capacity 121 kA at 240 V AC.","salesMarkdown":"Four poles, TM220 thermal-magnetic release, no undervoltage or shunt trip, no communication module. It is a straightforward main or feeder breaker for a 400 V class distribution board. ## Breaking capacity — the real fault-clearing envelope The interrupting ratings span the voltage range a panel sees: 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. At 415 V — the common low-voltage distribution level — 75.6 kA gives generous SCCR headroom for most industrial switchboards. The 690 V figure (11.9 kA) is low enough that a high-fault 690 V bus may need a current-limiting upstream device; verify coordination. Above 50 °C it drops: 313 A at 55 °C, 306 A at 60 °C, 299 A at 65 °C, 292 A at 70 °C. Maximum power loss is 80.1 W at rated load, which matters for enclosure thermal rise calculations. Dimensions: 248 mm high, 184 mm wide, 110 mm deep. Four-pole frame, so it occupies the full width of a standard distribution board mounting plate. IP40 on the front — protected against solid objects over 1 mm, no water ingress protection; install inside a rated enclosure.","metaTitle":"Siemens 3VA1332-4EE42-0AA0 SENTRON MCCB, 320A, 4-Pole, TM220","metaDescription":"Siemens 3VA1332-4EE42-0AA0 SENTRON molded case circuit breaker, 320A rated at 40°C, 4-pole, TM220 release, 121kA at 240V. Active production. Sourced to order against RFQ.","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":"3VA1332-4EE42-0AA0","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":"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","description":"circuit breaker 3VA1 IEC frame 400 breaking capacity class S Icu=36kA @ 415V 4-pole, line protection TM220, ATFM, In=320A overload protection Ir=224A...320A 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":"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":"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/1d8a1cd019737c3877ac6af13327790a.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=690403&mlfb=3VA1332-4EE42-0AA0"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA1332-4EE42-0AA0?","answer":"Submit an RFQ through this listing. Availability and current pricing are confirmed at quote time through independent distribution channels."},{"question":"What is 3VA1332-4EE42-0AA0's rated current and breaking capacity?","answer":"Rated 320 A continuous at 40 °C ambient, with a breaking capacity of 121 kA at 240 V AC and 75.6 kA at 415 V AC."},{"question":"What are the physical dimensions of this MCCB?","answer":"248 mm high, 184 mm wide, 110 mm deep. It is a 4-pole frame requiring a standard mounting plate cutout."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1332-4EE42-0AA0","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/3VA1332-4EE42-0AA0 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}}