{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2450-7MN32-0HH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2450-7MN32-0HH0","canonicalUrl":"https://aoctrl.com/siemens/3VA2450-7MN32-0HH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2450-7MN32-0HH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2450-7MN32-0HH0, molded case circuit breaker, 3-pole, 500 A, breaking capacity 330 kA at 240 V AC, motor protection version with ETU350M electronic trip unit.","salesMarkdown":"At 415 V and 440 V the rating holds at 242 kA, and at 690 V it still clears 52.5 kA, so this breaker is sized for main or feeder duty in heavy industrial switchgear, not branch protection. ## Motor protection and trip unit This is the motor protection version, equipped with an ETU350M electronic overcurrent release. The ETU350M provides adjustable thermal-magnetic or electronic trip curves tailored for motor starting inrush, plus phase failure detection — so it will trip on a lost phase before the motor winding overheats. ## Physical integration and environment The 3VA2450-7MN32-0HH0 measures 138 mm wide by 248 mm high by 110 mm deep — a standard SENTRON 3VA frame size for 500 A class. It mounts via four screws on a backplate or into a fixed MCCB cradle; no DIN-rail clip on this frame. Derating applies above 55 °C: the 500 A rating holds flat to 50 °C, then drops to 495 A at 55 °C, 490 A at 60 °C, 485 A at 65 °C, and 480 A at 70 °C.","metaTitle":"Siemens 3VA2450-7MN32-0HH0 MCCB, 500 A, 330 kA at 240 V","metaDescription":"Siemens SENTRON 3VA2450-7MN32-0HH0 molded case circuit breaker, 500 A rated, 330 kA breaking at 240 V. Motor protection, ETU350M release. 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":"330 kA","at 415 V":"242 kA","at 440 V":"242 kA","at 690 V":"52.5 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":"Yes","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":"2 auxiliary switches + 1 trip alarm switch HQ","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":"3VA2450-7MN32-0AA0","Design of the auxiliary release":"Shunt trip (STL)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9688-0BL30","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":"3","Protective function of the overcurrent release":"LSI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","Switching capacity class of the circuit breaker":"C","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=570163&mlfb=3VA2450-7MN32-0HH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2450-7MN32-0HH0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA2450-7MN32-0HH0 at 415 V?","answer":"At 415 V AC the breaking capacity is 242 kA, and the same rating applies at 440 V. At 690 V it derates to 52.5 kA."},{"question":"What trip unit does this MCCB use?","answer":"It uses the ETU350M electronic overcurrent release, which provides adjustable trip curves, phase failure detection, and a shunt trip for remote opening."},{"question":"Where can I buy 3VA2450-7MN32-0HH0 and how is it quoted?","answer":"This MCCB is sourced to order through independent distribution. Submit an RFQ for current pricing and availability — stock and lead time are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2450-7MN32-0HH0","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/3VA2450-7MN32-0HH0 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}}