{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2450-5MN32-0AG0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2450-5MN32-0AG0","canonicalUrl":"https://aoctrl.com/siemens/3VA2450-5MN32-0AG0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2450-5MN32-0AG0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2450-5MN32-0AG0, molded case circuit breaker, 3-pole, 500 A, ETU350M electronic trip unit, 187 kA at 240 V.","salesMarkdown":"The Siemens SENTRON 3VA2450-5MN32-0AG0 is a 3-pole molded case circuit breaker (MCCB) rated for 500 A continuous current at 40 °C, with an ETU350M electronic trip unit and integrated phase failure detection. It is a current-production part within the SENTRON family, designed for motor protection duty in industrial power distribution. That makes it a fit for pump, fan, and compressor circuits where phase loss is a known failure mode. ## Breaking capacity — what it clears at your voltage At 240 V it interrupts 187 kA; at 415 V and 440 V it holds 121 kA; at 500 V it drops to 75.6 kA; at 690 V it still clears 17 kA. Full 500 A rating holds through 50 °C ambient; at 55 °C it derates to 495 A, at 60 °C to 490 A, at 65 °C to 485 A, and at 70 °C to 480 A. The 138 mm width × 248 mm height × 110 mm depth footprint fits standard MCCB panel cutouts — no special adapter plate needed for a typical 3-pole 500 A frame. ## Auxiliary contacts and trip alarm Comes with one auxiliary switch and one trip alarm switch (HP version), plus a visible trip indicator on the front. The auxiliary contacts let a PLC or SCADA system read the breaker's position and fault status — useful for condition monitoring in wind turbine pitch cabinets or compressor skids where no up-tower swap is acceptable.","metaTitle":"Siemens 3VA2450-5MN32-0AG0 SENTRON MCCB, 500 A, 3-Pole, ETU3","metaDescription":"Siemens SENTRON 3VA2450-5MN32-0AG0 molded case circuit breaker, 500 A rated, 3-pole, ETU350M electronic trip unit, 187 kA at 240 V. Current production. Sourced to order.","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","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"121 kA","at 500 V":"75.6 kA","at 690 V":"17 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","Trip indicator":"Yes","Number of poles":"3","Product version":"Motor protection","Voltage trigger":"No","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"15 000","Undervoltage Release":"No","Communication Function":"No","Phase failure detection":"Yes","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Power loss [W] / maximum":"99 W","Auxiliary contact version":"1 auxiliary switch + 1 trip alarm switch HP","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"500 A","Rated insulation voltage Ui":"800 V","Of The Supplied Basic Switch":"3VA2450-5MN32-0AA0","Design of the auxiliary release":"Without auxiliary release","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9608-0BB11","Design of the overcurrent release":"ETU350M","Protection class IP / on the front":"IP40","Operating power / at AC-3 / at 400 V":"200 W","Reference code / acc. to DIN EN 81346-2":"Q","Adjustable response value time / tr max.":"15","Adjustable response value time / tr min.":"4","Adjustable response value time / tsd max.":"0.03 s","Adjustable response value time / tsd min.":"0.03 s","Undervoltage Release With Leading Contact":"No","Product extension / optional / motor drive":"Yes","Adjustable response value current / Ir max.":"500 A","Adjustable response value current / li max.":"7 500 A","Adjustable response value current / li min.":"7 500 A","Adjustable response value current / lr min.":"200 A","Adjustable response value current / Isd max.":"7 500 A","Adjustable response value current / Isd min.":"1 500 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"2","Protective function of the overcurrent release":"LSI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB11","Switching capacity class of the circuit breaker":"M","Max. rated operational current of the frame size":"630 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Type of electrical connection / for main current circuit":"Lug terminal","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=569931&mlfb=3VA2450-5MN32-0AG0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2450-5MN32-0AG0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2450-5MN32-0AG0 and get a price?","answer":"This part is sourced and quoted to order through independent distribution channels. Submit an RFQ through this listing; availability and current pricing are confirmed at quote time."},{"question":"What is the breaking capacity at 415 V?","answer":"At 415 V the 3VA2450-5MN32-0AG0 interrupts 121 kA. At 240 V it clears 187 kA, at 440 V also 121 kA, at 500 V it holds 75.6 kA, and at 690 V it clears 17 kA."},{"question":"What trip unit does this MCCB use?","answer":"It uses the ETU350M electronic trip unit with adjustable overload and short-circuit protection, plus integrated phase failure detection. The auxiliary contact set includes one auxiliary switch and one trip alarm switch."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2450-5MN32-0AG0","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/3VA2450-5MN32-0AG0 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}}