{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VM1332-4EE32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VM1332-4EE32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VM1332-4EE32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VM1332-4EE32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"SENTRON 3VM1332-4EE32-0AA0, molded case circuit breaker, 3-pole, TM220 thermal-magnetic release, 320 A at 40 °C, 690 V AC, interrupting 121 kA at 240 V.","salesMarkdown":"It's rated 320 A continuous at 40 °C (same at 45 °C and 50 °C, so you get full ampacity through typical enclosure ambient temps), then derates to 292 A at 70 °C. That's the number you care about for a hot panel in summer — the breaker doesn't force a derate until you're past 50 °C. Interrupting capacity is 121 kA at 240 V AC and 76 kA at 415 V AC — that's a high-fault rating for a 320 A frame, meaning it can handle a dead short on a transformer secondary or a large motor bank without the arc flash escalating upstream. The TM220 thermal-magnetic release gives a fixed thermal curve and magnetic trip, no electronics to fail, no adjustment knobs to walk off. Insulation voltage is 800 V, operating voltage 690 V AC, so it's comfortable on 480/277 V and 600 V systems with headroom. It's a straightforward thermal-magnetic main breaker: mount it, land the lugs, and it protects.","metaTitle":"3VM1332-4EE32-0AA0 SENTRON MCCB, 320 A, 3-pole, TM220 releas","metaDescription":"SENTRON 3VM1332-4EE32-0AA0 molded case circuit breaker, 320 A at 40 °C, 3-pole, TM220 thermal-magnetic release, 690 V AC, 121 kA at 240 V. Active production. Quoted 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":"138 mm","title":"3VM1332-4EE32-0AA0","Height":"248 mm","Maximum":"3 200 A","at 240 V":"121 kA","at 415 V":"76 kA","at 440 V":"76 kA","at 500 V":"53 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 3VM1 IEC frame 400 breaking capacity class N 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 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 capacity values in DC power systems, see the 3VA Molded Case Circuit Breaker Manual; link available 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":"No","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":"15 000","Type Of Electrical Connection / For Main Current Circuit":"nut keeper kit on both ends","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front connection"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/86cbb92bc3ad6bdc48e958b7e3ce540a.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=569100&mlfb=3VM1332-4EE32-0AA0"},"ai":{"faq":[{"question":"What are the key ratings for this MCCB?","answer":"It is a 3-pole, 320 A continuous (at 40 °C) molded case circuit breaker with a TM220 thermal-magnetic release, rated 690 V AC, and interrupting 121 kA at 240 V AC and 76 kA at 415 V AC."},{"question":"Where can I buy 3VM1332-4EE32-0AA0 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"Will 3VM1332-4EE32-0AA0 drop into a panel specified around 3VA1112-5EE32-0AA0?","answer":"The 3VM1332-4EE32-0AA0 is a different frame series (3VM vs 3VA) with different dimensions and release options. It will not directly swap without verifying the mounting footprint, bus connections, and cable lug spacing against the existing panel layout."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VM1332-4EE32-0AA0","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/3VM1332-4EE32-0AA0 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}}