{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1332-4EF32-0KG0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1332-4EF32-0KG0","canonicalUrl":"https://aoctrl.com/siemens/3VA1332-4EF32-0KG0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1332-4EF32-0KG0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1332-4EF32-0KG0, 3-pole molded case circuit breaker, TM240 thermal-magnetic release, 320 A at 40 °C, breaking capacity 121 kA at 240 V, 75.6 kA at 415 V.","salesMarkdown":"The Siemens SENTRON 3VA1332-4EF32-0KG0 is a 3-pole molded case circuit breaker rated 320 A continuous at 40 °C through 50 °C, with a TM240 thermal-magnetic trip unit. Above 50 °C, the thermal derating curve applies: 313 A at 55 °C, 306 A at 60 °C, 299 A at 65 °C, and 292 A at 70 °C. ## Breaking capacity by voltage — selectivity and SCCR headroom The interrupting ratings span the common industrial voltages: 121 kA at 240 V, 75.6 kA at both 415 V and 440 V, 52.5 kA at 500 V, and 11.9 kA at 690 V. The 690 V figure (11.9 kA) is lower — worth checking if your system runs at that voltage and fault current approaches that threshold. That 138 mm width across three poles is standard for this frame class — it fits the usual SENTRON mounting footprint without surprises.","metaTitle":"Siemens 3VA1332-4EF32-0KG0 SENTRON MCCB, 320A, 3-Pole, TM240","metaDescription":"Siemens SENTRON 3VA1332-4EF32-0KG0 molded case circuit breaker, 320A at 40°C, 3-pole, TM240 release, 121kA at 240V. Sourced to order against RFQ.","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","title":"3VA1332-4EF32-0KG0","Height":"248 mm","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 TM240, ATAM, In=320A overload protection Ir=224A...320A short-circuit protection Ii=5...10 x In nut keeper kit circuit breaker 3VA1 IEC frame 400 breaking capacity class S Icu=36kA @ 415V 3-pole, line protection TM240, ATAM, In=320A overload protection Ir=224A...320A short-circuit protection Ii=5...10 x In nut SHUNT TRIP LEFT 208-277 V AC 50/60 HZ 220-250 V DC ACCESSORY 1 AUXILIARY SWITCH CHANGEO","Trip Indicator":"Yes","Number Of Poles":"3","Voltage Trigger":"Yes","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"80.1 W","Auxiliary contact version":"1 auxiliary switch + 1 trip alarm switch HP","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA13324EF320AA0","Design Of The Auxiliary Release":"shunt trip (STL)","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","Of The Integrated Auxiliary Trip Unit":"3VA9688-0BL33","operating voltage / at AC / rated value":"690 V","Max. rated operational voltage Ue with DC":"500 V","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"Yes","Neutral conductors / upgradeable/retrofittable":"No","Protection Function Of The Overcurrent Release":"LI","number of CO contacts / for auxiliary contacts":"2","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB11","Switching Capacity Class Of The Circuit Breaker":"S","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,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/9114400e3c29d40e628b8e6f7c88fc77.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1423857&mlfb=3VA1332-4EF32-0KG0"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA1332-4EF32-0KG0 at 415 V?","answer":"75.6 kA at 415 V, which covers most industrial distribution panel fault levels at that voltage."},{"question":"Where can I buy 3VA1332-4EF32-0KG0?","answer":"Sourced and quoted to order against an RFQ through independent distribution channels; availability and current pricing confirmed at quote time."},{"question":"What does the TM240 release mean on this MCCB?","answer":"TM240 is a thermal-magnetic trip unit with a 240 A frame rating — the breaker is adjustable but the maximum continuous current is 320 A at 40 °C."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1332-4EF32-0KG0","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/3VA1332-4EF32-0KG0 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}}