{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1450-5MH32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1450-5MH32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1450-5MH32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1450-5MH32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1450-5MH32-0AA0, molded case circuit breaker, 3-pole, 500 A, TM120M overcurrent release, interrupting capacity 187 kA at 240 V, 121 kA at 415 V.","salesMarkdown":"## MCCB for motor and feeder protection Full 500 A rating holds up to 50 °C ambient; above that the breaker derates linearly — 488 A at 55 °C, 476 A at 60 °C, 464 A at 65 °C, and 452 A at 70 °C (–). Maximum power dissipation is 122.7 W, which drives enclosure ventilation requirements when the breaker is continuously loaded near its rating. The 110 mm depth, 138 mm width, and 248 mm height (–) fit standard SENTRON 3VA panel cutouts; IP40 on the front suits indoor panel installation but not washdown environments. ## Interrupting capacity across voltage classes The interrupting capacity drops as system voltage rises: 187 kA at 240 V, 121 kA at both 415 V and 440 V, 75.6 kA at 500 V, and 11.9 kA at 690 V (–). For a 480 V panel with an available fault current of 65 kA, this breaker provides headroom. The 3-pole design handles three-phase circuits; no undervoltage release or shunt trip is built in, so external accessories are needed for remote tripping.","metaTitle":"Siemens 3VA1450-5MH32-0AA0 SENTRON MCCB, 500 A, 3-Pole","metaDescription":"Siemens SENTRON 3VA1450-5MH32-0AA0 molded case circuit breaker, 500 A rated, 3-pole, TM120M release. Interrupting capacity 187 kA at 240 V. Current 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":"3VA1450-5MH32-0AA0","Height":"248 mm","Maximum":"500 A","Minimum":"500 A","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"121 kA","at 500 V":"75.6 kA","at 690 V":"11.9 kA","at 40 °C":"500 A","at 45 °C":"500 A","at 50 °C":"500 A","at 55 °C":"488 A","at 60 °C":"476 A","at 65 °C":"464 A","at 70 °C":"452 A","Depth [In]":"4.33 in","Width [In]":"5.43 in","Height [In]":"9.76 in","description":"circuit breaker 3VA1 IEC frame 630 breaking capacity class M Icu=55kA @ 415V 3-pole, starter protection TM120M, AM, In=500A without overload protection short-circuit protection Ii=8...16 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":"Starter protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"122.7 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":"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":"0","Switching Capacity Class Of The Circuit Breaker":"M","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":"$674.37","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/f3253a8d9db9c7993d27ce0f3f1b7b21.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=569021&mlfb=3VA1450-5MH32-0AA0"},"ai":{"faq":[{"question":"What are the key ratings for 3VA1450-5MH32-0AA0?","answer":"Rated 500 A continuous, 3-pole, with a TM120M thermal-magnetic release. Interrupting capacity is 187 kA at 240 V, 121 kA at 415 V, and 11.9 kA at 690 V. Insulation voltage is 800 V. Dimensions are 110 mm deep, 138 mm wide, 248 mm high."},{"question":"Where can I buy 3VA1450-5MH32-0AA0 and get current pricing?","answer":"This part is sourced to order against an RFQ through independent distribution. Submit a request for current pricing and availability — figures are confirmed at quote time, not listed here."},{"question":"What compliance documentation does Siemens provide for this breaker?","answer":"The SENTRON 3VA series carries IEC and UL certifications standard for molded-case breakers. Specific RoHS, REACH, and UL file documentation is available from Siemens' technical documentation portal linked to this order code."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1450-5MH32-0AA0","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/3VA1450-5MH32-0AA0 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}}