{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1332-6MH32-0AC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1332-6MH32-0AC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1332-6MH32-0AC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1332-6MH32-0AC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON molded case circuit breaker, 3VA1332-6MH32-0AC0, 3-pole, 320 A, TM120M overcurrent release, 154 kA breaking capacity at 415 V, 110 x 138 x 248 mm.","salesMarkdown":"## 320 A MCCB with 154 kA breaking capacity — what that means on the line That 320 A holds all the way up to 50 °C ambient; at 55 °C it derates to 313 A, and at 70 °C it's still good for 292 A. ## Where this MCCB fits in the panel The 3-pole layout and the TM120M release mean it's set up for motor branch circuits or feeder protection where you need a fixed thermal curve and magnetic short-circuit pickup. The auxiliary switch design carries two HQ form-C contacts — handy for a remote trip-indication circuit without adding a separate accessory. The interrupting rating drops as voltage climbs: 220 kA at 240 V, 154 kA at both 415 V and 440 V, 121 kA at 500 V, and 17 kA at 690 V.","metaTitle":"Siemens SENTRON 3VA1332-6MH32-0AC0 MCCB, 320 A, 154 kA at 41","metaDescription":"Siemens SENTRON 3VA1332-6MH32-0AC0 molded case circuit breaker, 320 A rated, 154 kA breaking capacity at 415 V. 3-pole, TM120M release. Current production. Quoted to order.","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":"320 A","Minimum":"320 A","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]":"5.43 in","Height [In]":"9.76 in","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","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":"3VA13326MH320AA0","Design Of The Auxiliary Switch":"2 auxiliary switches HQ","Ground-Fault Monitoring Version":"Without","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"TM120M","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","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"I","number of CO contacts / for auxiliary contacts":"2","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","Switching Capacity Class Of The Circuit Breaker":"H","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=1450074&mlfb=3VA1332-6MH32-0AC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1332-6MH32-0AC0/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for 3VA1332-6MH32-0AC0?","answer":"Rated 320 A continuous with a TM120M thermal-magnetic release, 3-pole, 154 kA interrupting capacity at 415 V. Dimensions are 110 mm deep, 138 mm wide, 248 mm tall. No undervoltage release, no communication function."},{"question":"Where can I buy the 3VA1332-6MH32-0AC0?","answer":"This MCCB 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 a firm price and lead time."},{"question":"What compliance documentation does Siemens provide for this MCCB?","answer":"As a standard SENTRON molded case circuit breaker, this unit carries the usual Siemens compliance documentation including RoHS and REACH declarations, and is designed to meet IEC 60947-2 and UL 489 standards. Specific certs should be verified against the factory certificate for your lot."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1332-6MH32-0AC0","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/3VA1332-6MH32-0AC0 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}}