{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VM1450-4EE32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VM1450-4EE32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VM1450-4EE32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VM1450-4EE32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VM1450-4EE32-0AA0, Molded case circuit breaker, 3-pole, 500 A, TM220 release, line protection, 110 mm depth, IP40 front.","salesMarkdown":"The Siemens SENTRON 3VM1450-4EE32-0AA0 is a 3-pole molded case circuit breaker rated 500 A continuously at 40 °C, with full current hold through 50 °C — above that it derates linearly to 452 A at 70 °C. The TM220 overcurrent release is a thermal-magnetic fixed-trip design: thermal element handles overloads, magnetic element clears short circuits. ## Breaking capacity — the number that decides selectivity At 240 V AC this breaker interrupts 121 kA; at 415 V and 440 V it holds 76 kA; at 500 V it drops to 53 kA. Those are the symmetrical fault-current ratings that govern whether this breaker coordinates with the upstream device. For a 500 A main on a 480 V panel, the 76 kA at 415 V gives headroom above typical utility transformer impedances. ## Panel fit — 110 mm depth, 138 mm width, IP40 front The body measures 110 mm deep by 138 mm wide by 248 mm tall. That depth (110 mm) is the dimension that decides whether it clears a shallow enclosure backpan. Front protection is IP40 — finger-safe on the operator side, but no ingress protection on the rear or sides; mount it inside a sealed cabinet if the environment is dusty or wet.","metaTitle":"Siemens 3VM1450-4EE32-0AA0 SENTRON MCCB, 500 A, 3-Pole, TM22","metaDescription":"Siemens 3VM1450-4EE32-0AA0 SENTRON molded case circuit breaker, 500 A rated at 40°C, 3-pole, TM220 release, 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":"3VM1450-4EE32-0AA0","Height":"248 mm","Maximum":"5 000 A","at 240 V":"121 kA","at 415 V":"76 kA","at 440 V":"76 kA","at 500 V":"53 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 3VM1 IEC frame 630 breaking capacity class N Icu=36kA @ 415V 3-pole, line protection TM220, ATFM, In=500A overload protection Ir=350A...500A 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":"123 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/2878070f703cae6a21adac2d46c34435.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=569128&mlfb=3VM1450-4EE32-0AA0"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VM1450-4EE32-0AA0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Current pricing and availability are confirmed at quote time — submit an RFQ for a firm number."},{"question":"What is the closest functional alternative to 3VM1450-4EE32-0AA0?","answer":"The 3VA1112-5EE32-0AA0 is a SENTRON 3VA-series breaker at a similar current class. The 3VM is the value line with fewer options (no trip indicator, no communication, no ground-fault monitoring); the 3VA adds those features and a wider accessory range. If your BOM needs the extras, step up to the 3VA; if not, the 3VM holds the same breaking capacity for less."},{"question":"Will 3VM1450-4EE32-0AA0 drop into a panel specified around 3VA1112-5EE32-0AA0 without rewiring?","answer":"Both are SENTRON 3-pole MCCBs with the same frame-size footprint — 110 mm depth, 138 mm width — so the physical cutout and bus connection points are the same. No rewiring needed for the drop-in. Confirm the accessory slot compatibility if your panel uses auxiliary switches or shunt trips from the 3VA series; the 3VM accepts a different accessory set."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VM1450-4EE32-0AA0","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/3VM1450-4EE32-0AA0 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}}