{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2450-5MN32-0KA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2450-5MN32-0KA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2450-5MN32-0KA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2450-5MN32-0KA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2 series, molded case circuit breaker for motor protection, 3VA2450-5MN32-0KA0, 3-pole, 500 A rated current at 40 °C, with shunt trip release, breaking capacity 187 kA at 240 V.","salesMarkdown":"This is the variant with the basic switch 3VA2450-5MN32-0AA0 inside, no auxiliary switch, and no communication module — a straightforward, hardwired motor protection breaker for a panel. Above that, it derates: 495 A at 55 °C, 490 A at 60 °C, 485 A at 65 °C, and 480 A at 70 °C. This MCCB's interrupting rating varies significantly with system voltage. At 240 V it's rated for 187 kA; at 415 V and 440 V it's 121 kA; at 500 V it drops to 75.6 kA; at 690 V it's 9 kA. The breaker also carries a 6 kA rating limited to 1 second, likely for short-time withstand during selective coordination studies. ## Protection features and trip characteristics Designed for motor protection, this breaker includes phase failure detection — a critical feature for three-phase motor loads where a lost phase can burn out a winding. The trip unit has a voltage trigger (undervoltage release is not fitted on this variant; the shunt trip is the only auxiliary release). Trip indicator is not present, so you won't get a visual flag on the breaker face after a trip — plan for remote indication via the shunt trip circuit or a separate auxiliary contact block.","metaTitle":"Siemens 3VA2450-5MN32-0KA0 SENTRON MCCB, 500 A, 3-Pole, Moto","metaDescription":"Siemens 3VA2450-5MN32-0KA0 SENTRON molded case circuit breaker, 500 A rated at 40 °C, 3-pole motor protection with shunt trip. Breaking capacity 187 kA at 240 V. Active production,","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":"187 kA","at 415 V":"121 kA","at 440 V":"121 kA","at 500 V":"75.6 kA","at 690 V":"9 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":"Yes","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","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":"99 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA2450-5MN32-0AA0","Design Of The Auxiliary Switch":"Without","Design Of The Auxiliary Release":"shunt trip (STL)","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":"3VA9688-0BL33","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":"M","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=570137&mlfb=3VA2450-5MN32-0KA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2450-5MN32-0KA0/alternatives.json"},"ai":{"faq":[{"question":"What is 3VA2450-5MN32-0KA0's listed depth and width?","answer":"The depth is 110 mm and the width is 138 mm, with a height of 248 mm."},{"question":"What compliance documentation does this brand provide for 3VA2450-5MN32-0KA0?","answer":"As a Siemens SENTRON product, this MCCB carries the standard industrial certifications expected for this class — UL, CSA, IEC, and CE markings are typical for the 3VA2 series. Specific documentation (RoHS, REACH, UL file number, IEC test reports) is available upon request with an RFQ."},{"question":"What does the shunt trip (STL) release do on this breaker?","answer":"The shunt trip (STL) allows remote tripping of the breaker by applying a control voltage to the release coil. It's used for emergency stop circuits, remote shutdown, or interlocking schemes — no undervoltage release is fitted on this variant."},{"question":"Does this breaker include phase failure protection?","answer":"Yes, phase failure detection is built in. This is essential for motor protection — if one phase drops out, the breaker will trip before single-phasing damages the motor."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2450-5MN32-0KA0","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/3VA2450-5MN32-0KA0 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}}