{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2450-5MN32-0AF0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2450-5MN32-0AF0","canonicalUrl":"https://aoctrl.com/siemens/3VA2450-5MN32-0AF0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2450-5MN32-0AF0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2450-5MN32-0AF0, molded case circuit breaker, 3-pole, 500 A, motor protection design, 187 kA interrupting at 240 V, with integrated auxiliary switch and trip alarm.","salesMarkdown":"It carries a continuous current rating of 500 A at 40 °C, and the thermal derating curve holds that full 500 A up through 50 °C ambient — only dropping to 495 A at 55 °C and 480 A at 70 °C, meaning it handles warm panel environments without a significant de-rate. Interrupting capacity is the headline here: 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 9 kA at 690 V. For a 500 A frame, that 121 kA at 415 V gives real selectivity headroom in high-fault industrial distribution — you can coordinate downstream without forcing a main breaker upgrade. The design is motor protection, so the thermal-magnetic curve is shaped for motor inrush and overload profiles. The breaker measures 248 mm high by 138 mm wide by 110 mm deep. It mounts into a standard SENTRON panelboard or onto a mounting plate in an enclosure. The 3-pole form factor matches the common footprint for 500 A frame MCCBs — check your busbar centers and enclosure depth before committing the cutout. Maximum power loss is 99 W, which matters for thermal management inside a sealed enclosure — factor that into your ventilation or de-rate calculation if you are packing multiple breakers in one cabinet.","metaTitle":"Siemens 3VA2450-5MN32-0AF0 SENTRON MCCB, 500 A, 3-Pole, Moto","metaDescription":"Siemens SENTRON 3VA2450-5MN32-0AF0 molded case circuit breaker, 500 A rated, 3-pole motor protection. 187 kA at 240 V interrupting capacity. Current production. Sourced to order ag","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":"Yes","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":"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":"1 auxiliary switch + 1 trip alarm switch HQ","Design Of The Auxiliary Release":"Without auxiliary release","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","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":"3VA9988-0AB12","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=569930&mlfb=3VA2450-5MN32-0AF0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2450-5MN32-0AF0/alternatives.json"},"ai":{"faq":[{"question":"Does this MCCB include phase failure protection?","answer":"Yes, phase failure detection is built into the breaker — no external relay or module required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2450-5MN32-0AF0","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/3VA2450-5MN32-0AF0 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}}