{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1450-7MH32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1450-7MH32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1450-7MH32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1450-7MH32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1450-7MH32-0AA0, molded case circuit breaker, 3-pole, 500 A, TM120M thermal-magnetic release, 440 kA at 240 V, IP40 front.","salesMarkdown":"## What this MCCB does in a panel The TM120M thermal-magnetic release gives you fixed thermal pickup and magnetic trip settings; no adjustment knobs to mis-set on the line. Breaking capacity is 440 kA at 240 V AC, 242 kA at 415 V, and 154 kA at 500 V — enough headroom for most industrial service-entrance or distribution positions where fault current is high. At 690 V it still clears 17 kA, so it's usable on 690 V line-ups if the available fault stays under that. Power loss runs 122.7 W max at rated load — that's heat that has to leave the enclosure. In a sealed panel with other breakers, factor that into your thermal budget. ## Current derating and ambient limits Above that it derates linearly: 488 A at 55 °C, 476 A at 60 °C, 464 A at 65 °C, 452 A at 70 °C. If your panel runs hot, you don't lose much — only about 10% at the top end — but don't plan on 500 A in a 65 °C switchroom without checking the curve. Footprint is 138 mm wide, 248 mm tall, 110 mm deep. That's a standard 3-pole MCCB cutout for this frame size — it fits existing SENTRON 3VA mounting bases and busbar kits without re-drilling. Depth of 110 mm means it clears most 200 mm-deep enclosures with room for wiring behind it.","metaTitle":"Siemens 3VA1450-7MH32-0AA0 SENTRON MCCB, 500 A, 3-Pole, TM12","metaDescription":"Siemens SENTRON 3VA1450-7MH32-0AA0 molded case circuit breaker, 500 A, 3-pole, 440 kA at 240 V, TM120M release, IP40 front. Active production. 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","Height":"248 mm","Maximum":"500 A","Minimum":"500 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":"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","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":"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":"https://cdn.aoctrl.com/340d9e5d4bfeef274c5c05893243ba60.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1093783&mlfb=3VA1450-7MH32-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1450-7MH32-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1450-7MH32-0AA0?","answer":"We source this part to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What are the key ratings for 3VA1450-7MH32-0AA0?","answer":"It is a 3-pole 500 A MCCB with a TM120M thermal-magnetic release, breaking capacity of 440 kA at 240 V, 242 kA at 415 V, and 17 kA at 690 V. It derates from 500 A at 50 °C to 452 A at 70 °C."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1450-7MH32-0AA0","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/3VA1450-7MH32-0AA0 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}}