{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2450-7MN32-0CA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2450-7MN32-0CA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2450-7MN32-0CA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2450-7MN32-0CA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2450-7MN32-0CA0, molded case circuit breaker, motor protection design, 3-pole, 500 A at 40 °C, 330 kA breaking capacity at 240 V AC, with undervoltage release, depth 110 mm, width 138 mm, height 248 mm.","salesMarkdown":"Its 500 A continuous rating at 40 °C (derated to 480 A at 70 °C) matches the full-load current of a large motor, and the 330 kA breaking capacity at 240 V AC means it can interrupt a bolted fault on the secondary side of a step-down transformer without the arc flashing upstream. For a critical-facilities engineer chasing five-nines uptime, that SCCR headroom is the difference between a coordinated trip and a cascading blackout across the switchboard. The undervoltage release (UVR) built into this order code drops the breaker if control power falls below the dropout threshold — a standard requirement for emergency-stop chains and undervoltage protection schemes in motor control centers. Phase failure detection is also onboard, so a lost phase on the line side will trip the breaker rather than let the motor single-phase and cook the winding. At 138 mm wide by 248 mm tall by 110 mm deep, this MCCB occupies a standard three-pole MCCB footprint on the DIN rail. For a panel OEM wiring up a motor starter section, the 500 A frame size means the line and load conductors will be 2/0 AWG or larger; verify the lug kit accepts the cable diameter you're pulling. The interrupting ratings span the common industrial voltages: 330 kA at 240 V AC, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 15.3 kA at 690 V. For a site electrical engineer building a selective coordination study, the 242 kA at 415 V means this MCCB can sit downstream of a 250 kVA transformer without exceeding its short-circuit rating.","metaTitle":"3VA2450-7MN32-0CA0 SENTRON MCCB, 500 A, 330 kA at 240 V, mot","metaDescription":"Siemens SENTRON 3VA2450-7MN32-0CA0 molded case circuit breaker, 500 A rated at 40 °C, 330 kA breaking capacity at 240 V. Motor protection design with undervoltage release and phase","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":"13 s","Minimum":"4 s","at 240 V":"330 kA","at 415 V":"242 kA","at 440 V":"242 kA","at 500 V":"187 kA","at 690 V":"15.3 kA","at 40 °C":"500 A","at 45 °C":"500 A","at 50 °C":"500 A","at 55 °C":"495 A","at 60 °C":"490 A","at 65 °C":"485 A","at 70 °C":"480 A","Depth [In]":"4.33 in","Width [In]":"5.43 in","Height [In]":"9.76 in","Limited To 1 S":"6 kA","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":"Yes","Design Of The Product":"Motor protection","Communication Function":"No","Phase Failure Detection":"Yes","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"101.5 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA2450-7MN32-0AA0","Design Of The Auxiliary Switch":"Without","Design Of The Auxiliary Release":"undervoltage release (UVR)","Ground-Fault Monitoring Version":"Without","Continuous Current / Rated Value":"500 A","Insulation Voltage / Rated Value":"800 V","adjustable trip class (Tc CLASS)":"10A, 10E, 20E","Design Of The Overcurrent Release":"ETU350M","protection class IP / on the front":"IP40","operating power / at AC-3 / at 230 V":"110 000 W","operating power / at AC-3 / at 400 V":"200 000 W","Of The Integrated Auxiliary Trip Unit":"3VA9608-0BB24","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","reference code / according to IEC 81346-2":"Q","Continuous Current / Rated Value / Maximum":"630 A","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"LSI","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":"on both sides nut keeper kit","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=570153&mlfb=3VA2450-7MN32-0CA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2450-7MN32-0CA0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of this MCCB at 415 V?","answer":"The 3VA2450-7MN32-0CA0 is rated for 242 kA interrupting capacity at 415 V AC. At 240 V it reaches 330 kA, and at 690 V it is rated 15.3 kA."},{"question":"What does the undervoltage release do on this breaker?","answer":"The undervoltage release (UVR) trips the breaker when control voltage drops below a set threshold. This is standard for emergency-stop circuits and undervoltage protection in motor control centers."},{"question":"Where can I buy 3VA2450-7MN32-0CA0 and how is it quoted?","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 a request for a firm quotation."},{"question":"What is the depth of this MCCB?","answer":"The depth is 110 mm (4.33 inches). Width is 138 mm (5.43 inches) and height is 248 mm (9.76 inches)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2450-7MN32-0CA0","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/3VA2450-7MN32-0CA0 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}}