{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1332-6EF42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1332-6EF42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1332-6EF42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1332-6EF42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1332-6EF42-0AA0, molded case circuit breaker, 4-pole, 320 A, TM240 release, 220 kA at 240 V, IP40 front.","salesMarkdown":"## Siemens SENTRON 3VA1332-6EF42-0AA0 — 320 A MCCB with TM240 Release The Siemens 3VA1332-6EF42-0AA0 is a 4-pole SENTRON molded case circuit breaker rated for 320 A uninterrupted current (Iu) at 40 °C ambient, with a TM240 thermal-magnetic overcurrent release. It carries a 220 kA breaking capacity at 240 V AC, scaling down to 154 kA at 415/440 V, 121 kA at 500 V, and 17 kA at 690 V — figures that define its fault-interruption capability for high-available-fault-current distribution panels. This suits applications where the load profile is stable and the coordination study is done at design time — typical for feeder protection in industrial switchboards or as a main disconnect in a panel. ## Sourcing & Lifecycle — Current Production, No End-of-Life Signal Physical dimensions are 248 mm high, 184 mm wide, and 110 mm deep — a standard 4-pole MCCB footprint for the 3VA platform. Panel cutout and mounting hole pattern match other 3VA frame-size breakers, so a swap within the family does not require re-drilling the backplate. Above that, derating begins: 313 A at 55 °C, 306 A at 60 °C, 299 A at 65 °C, and 292 A at 70 °C. Maximum power loss is 80.1 W. That is the heat the breaker dissipates at full rated current — relevant for enclosure thermal calculations, especially in a sealed, non-ventilated panel. ## Integration Notes — Panel Fit and Accessories The 3VA1332-6EF42-0AA0 accepts the full SENTRON 3VA accessory range: rotary handles, shunt trips, undervoltage releases, auxiliary contacts, and a motor drive. The front IP40 rating means the breaker is not washdown-rated; it belongs in a locked, indoor enclosure.","metaTitle":"Siemens 3VA1332-6EF42-0AA0 SENTRON MCCB, 320 A, 4-Pole, 220","metaDescription":"Siemens 3VA1332-6EF42-0AA0 SENTRON molded case circuit breaker, 320 A rated current, 4-pole, 220 kA breaking capacity at 240 V. TM240 release, IP40 front. Available 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","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]":"7.24 in","Height [In]":"9.76 in","Number Of Poles":"4","Product version":"Line protection","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","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","rated insulation voltage Ui":"800 V","Courant permanent assigné Iu":"320 A","Ground-Fault Monitoring Version":"Without","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","reference code / acc. to IEC 81346-2":"Q","Max. rated operational voltage Ue with DC":"600 V","Product Extension / Optional / Motor Drive":"Yes","Adjustable response value current / li max.":"3 200 A","Adjustable response value current / li min.":"1 600 A","Neutral conductors / upgradeable/retrofittable":"No","Protection Function Of The Overcurrent Release":"LI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"H","Max. rated operational current of the frame size":"400 A","Mechanical Service Life (Switching 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","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"35 x 10 mm","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"20 x 1 mm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=568993&mlfb=3VA1332-6EF42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1332-6EF42-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Does 3VA1332-6EF42-0AA0 support a motor drive accessory?","answer":"Yes, the product extension for a motor drive is available as an optional accessory."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1332-6EF42-0AA0","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/3VA1332-6EF42-0AA0 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}}