{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2450-5MN32-0BA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2450-5MN32-0BA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2450-5MN32-0BA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2450-5MN32-0BA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2450-5MN32-0BA0, molded case circuit breaker, 3-pole, 500 A rated continuous current Iu, ETU350M overcurrent release, 187 kA interrupting at 240 V.","salesMarkdown":"The Siemens 3VA2450-5MN32-0BA0 is a SENTRON molded case circuit breaker (MCCB) in the motor protection version, rated for a continuous current Iu of 500 A at 40 °C through 50 °C, with a slight derating curve down to 480 A at 70 °C. That 500 A rating holds flat across the typical panel ambient range — you don't lose headroom until you're past 55 °C, where it drops to 495 A. The interrupting ratings are the real story here: 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 17 kA at 690 V. ## Integration and mounting notes The 3VA2450-5MN32-0BA0 measures 248 mm high, 138 mm wide, and 110 mm deep — a 3-pole frame that mounts on a DIN rail or directly to a backplate in the panel. It ships without auxiliary contacts or a trip indicator, so if you need remote status signaling, you'll add the 3VA9608-0BB11 auxiliary trip switch separately. The undervoltage release is built in (design: undervoltage release UVR), which means the breaker drops out on loss of control voltage — standard for safety circuits. Maximum power dissipation is 101.5 W — account for that heat in your enclosure sizing, especially if you're grouping several breakers.","metaTitle":"Siemens 3VA2450-5MN32-0BA0 SENTRON MCCB, 500 A, 3-Pole, ETU3","metaDescription":"Siemens SENTRON 3VA2450-5MN32-0BA0 molded case circuit breaker, 500 A rated, 3-pole, ETU350M release, 187 kA at 240 V. Current lifecycle stage. Sourced to order against RFQ.","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":"No","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":"Yes","Communication Function":"No","Phase failure detection":"Yes","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Power loss [W] / maximum":"101.5 W","Auxiliary contact version":"Without","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":"Undervoltage release (UVR)","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":"0","Protective function of the overcurrent release":"LSI","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=570117&mlfb=3VA2450-5MN32-0BA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2450-5MN32-0BA0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA2450-5MN32-0BA0?","answer":"Submit an RFQ through our sourcing desk. Availability and current pricing are confirmed at quote time through our independent distribution network."},{"question":"What is the interrupting capacity of 3VA2450-5MN32-0BA0 at 415 V?","answer":"121 kA at 415 V, same as at 440 V. At 240 V it's 187 kA, at 500 V it's 75.6 kA, and at 690 V it's 17 kA."},{"question":"Does 3VA2450-5MN32-0BA0 include an undervoltage release?","answer":"Yes, it has a built-in undervoltage release (UVR) as the auxiliary release design. No auxiliary contacts or trip indicator are included on this variant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2450-5MN32-0BA0","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/3VA2450-5MN32-0BA0 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}}