{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2450-7MN32-0KL0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2450-7MN32-0KL0","canonicalUrl":"https://aoctrl.com/siemens/3VA2450-7MN32-0KL0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2450-7MN32-0KL0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2450-7MN32-0KL0, molded case circuit breaker, 3-pole, motor protection version, 500 A rated current, ETU350M electronic overcurrent release, breaking capacity 330 kA at 240 V.","salesMarkdown":"## Motor protection MCCB with ETU350M release The Siemens SENTRON 3VA2450-7MN32-0KL0 is a 3-pole molded case circuit breaker rated for 500 A continuous current (Iu) at 40 °C, designed specifically for motor protection duty. It carries the ETU350M electronic overcurrent release, which provides adjustable thermal-magnetic protection curves suited to motor starting profiles and phase-failure detection. The breaker maintains its full 500 A rating up to 50 °C ambient; above that it derates linearly to 480 A at 70 °C, so panel placement and ventilation matter when the breaker is near other heat sources. This MCCB delivers 330 kA breaking capacity at 240 V, 242 kA at 415 V and 440 V, and 52.5 kA at 690 V. Those figures cover most industrial distribution voltages in IEC markets. The 242 kA at 415 V is high enough for main incoming positions in large switchboards; the 52.5 kA at 690 V suits wind-turbine or mining applications where the line-to-line voltage is higher than standard 400 V distribution. ## Auxiliary and trip configuration The breaker ships with 2 auxiliary switches plus 1 trip alarm switch and 1 electrical alarm switch (HQ type), giving four discrete signal contacts for remote status monitoring. Operating temperature range is -25 °C to 70 °C; storage range is -40 °C to 80 °C. Maximum power loss is 99 W, which should be factored into enclosure thermal calculations. ## Physical dimensions and panel fit Dimensions are 248 mm height, 138 mm width, 110 mm depth. The 138 mm width is standard for a 3-pole frame in the SENTRON 3VA2 series, so it fits existing mounting footprints and busbar systems designed for that form factor.","metaTitle":"Siemens 3VA2450-7MN32-0KL0 SENTRON MCCB, 500 A, 3-Pole, Moto","metaDescription":"Siemens SENTRON 3VA2450-7MN32-0KL0 molded case circuit breaker, 500 A rated current, 3-pole, motor protection version with ETU350M release. Breaking capacity 330 kA at 240 V. 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","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 + 1 electrical 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":"3VA9688-0BL33","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":"4","Protective function of the overcurrent release":"LSI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB22","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=570172&mlfb=3VA2450-7MN32-0KL0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2450-7MN32-0KL0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA2450-7MN32-0KL0 at 415 V?","answer":"The breaking capacity is 242 kA at 415 V, which is sufficient for main incoming positions in large industrial switchboards."},{"question":"What type of overcurrent release does this MCCB use?","answer":"It uses the ETU350M electronic overcurrent release, designed for motor protection with adjustable thermal-magnetic curves and phase-failure detection."},{"question":"Where can I buy 3VA2450-7MN32-0KL0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What are the physical dimensions of 3VA2450-7MN32-0KL0?","answer":"The dimensions are 248 mm height, 138 mm width, and 110 mm depth, fitting standard 3-pole SENTRON 3VA2 mounting footprints."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2450-7MN32-0KL0","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/3VA2450-7MN32-0KL0 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}}