{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1332-7EF32-0AH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1332-7EF32-0AH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1332-7EF32-0AH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1332-7EF32-0AH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1332-7EF32-0AH0, 3-pole molded case circuit breaker, 320 A rated at 40 °C, TM240 thermal-magnetic release, 440 kA breaking capacity at 240 V AC.","salesMarkdown":"That is not a typo — this is a current-limiting MCCB designed for installations where available fault current is extreme, typically downstream of large transformers or in heavy industrial switchgear. At 415 V it still clears 242 kA, and at 690 V it holds 17 kA, which covers most 690 V industrial networks. At 55 °C it derates to 313 A, at 60 °C to 306 A, at 65 °C to 299 A, and at 70 °C to 292 A. Power loss at rated load is 80.1 W maximum — relevant for enclosure thermal calculations, especially in a sealed or high-density panel. ## Physical footprint and integration","metaTitle":"Siemens 3VA1332-7EF32-0AH0 SENTRON MCCB, 320A, 440kA at 240V","metaDescription":"Siemens 3VA1332-7EF32-0AH0 SENTRON molded case circuit breaker, 3-pole, 320A rated at 40°C, 440kA breaking capacity at 240V AC. TM240 thermal-magnetic release. Active production. A","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","Height":"248 mm","Maximum":"0 A","Minimum":"0 A","at 240 V":"440 kA","at 415 V":"242 kA","at 440 V":"242 kA","at 500 V":"154 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]":"5.43 in","Height [In]":"9.76 in","Trip Indicator":"Yes","Number Of Poles":"3","Voltage Trigger":"No","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","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA13327EF320AA0","Design Of The Auxiliary Switch":"2 auxiliary switches + 1 trip alarm switch HQ","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","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":"Yes","Protection Function Of The Overcurrent Release":"LI","number of CO contacts / for auxiliary contacts":"3","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","Switching Capacity Class Of The Circuit Breaker":"C","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,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1495292&mlfb=3VA1332-7EF32-0AH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1332-7EF32-0AH0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA1332-7EF32-0AH0 at different voltages?","answer":"440 kA at 240 V AC, 242 kA at 415 V and 440 V, 154 kA at 500 V, and 17 kA at 690 V AC."},{"question":"What does the TM240 designation mean on this MCCB?","answer":"TM240 is the thermal-magnetic overcurrent release — the thermal element provides overload protection calibrated for a 320 A frame, and the magnetic element provides instantaneous short-circuit protection. The '240' refers to the trip unit rating in amperes at 40 °C."},{"question":"Where can I buy the 3VA1332-7EF32-0AH0 and what is the lead time?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for your quantity and delivery window."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1332-7EF32-0AH0","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/3VA1332-7EF32-0AH0 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}}