{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2450-5MN32-0KC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2450-5MN32-0KC0","canonicalUrl":"https://aoctrl.com/siemens/3VA2450-5MN32-0KC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2450-5MN32-0KC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2450-5MN32-0KC0, molded case circuit breaker, 3-pole, motor protection design, rated 500 A at 40 °C, interrupting capacity 187 kA at 240 V.","salesMarkdown":"## Motor protection MCCB with high interrupting capacity The Siemens SENTRON 3VA2450-5MN32-0KC0 is a 3-pole molded case circuit breaker (MCCB) purpose-designed for motor protection, carrying a continuous current rating of 500 A at 40 °C and derating to 480 A at 70 °C. It delivers a 187 kA interrupting capacity at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 9 kA at 690 V — covering the full range of low-voltage fault currents a motor branch circuit can see. The design includes an integrated shunt trip (STL) and two HQ auxiliary switches, plus phase failure detection, so it drops a motor on loss of phase without a separate relay. ## Selectivity and coordination in the panel This MCCB is part of the SENTRON 3VA2 series, designed for selective coordination with upstream and downstream devices. The 500 A frame size pairs naturally with motor starters in the 200–400 kW range on 400 V supplies, where the 121 kA SCCR at 415 V provides headroom for high-fault installations.","metaTitle":"Siemens 3VA2450-5MN32-0KC0 SENTRON MCCB, 500 A, 3-Pole, Moto","metaDescription":"Siemens SENTRON 3VA2450-5MN32-0KC0 molded case circuit breaker, 500 A at 40°C, 3-pole, motor protection design. 187 kA at 240 V. Active production. Sourced to order. Request quote.","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":"2 auxiliary switches HQ","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":"2","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","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=570138&mlfb=3VA2450-5MN32-0KC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2450-5MN32-0KC0/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting capacity of 3VA2450-5MN32-0KC0 at 415 V?","answer":"121 kA at 415 V, matching the rating at 440 V. At 240 V it reaches 187 kA, and at 690 V it is 9 kA."},{"question":"Where can I buy 3VA2450-5MN32-0KC0 and how is it quoted?","answer":"This MCCB is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"Does 3VA2450-5MN32-0KC0 include phase failure protection?","answer":"Yes, it has integrated phase failure detection, so it will trip on loss of a phase without requiring an external relay."},{"question":"What auxiliary contacts come with 3VA2450-5MN32-0KC0?","answer":"It is equipped with two HQ auxiliary switches, providing status feedback for remote monitoring or PLC inputs."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2450-5MN32-0KC0","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/3VA2450-5MN32-0KC0 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}}