{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2450-7JP42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2450-7JP42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2450-7JP42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2450-7JP42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2450-7JP42-0AA0, molded case circuit breaker, 4-pole, 500 A rated current, ETU550 electronic trip unit, breaking capacity 330 kA at 240 V, IP40 front protection.","salesMarkdown":"## What this MCCB delivers The Siemens SENTRON 3VA2450-7JP42-0AA0 is a 4-pole molded case circuit breaker rated for continuous 500 A at 40 °C, carrying the same rating through 50 °C before it begins to derate — 477 A at 55 °C, 455 A at 60 °C, 432 A at 65 °C, and 410 A at 70 °C. Breaking capacity is 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 9 kA at 690 V. The electronic trip unit is an ETU550, which provides adjustable long-time, short-time, instantaneous, and ground-fault protection curves. Communication function is built in, enabling integration with higher-level monitoring or energy management systems without an external module. It carries no undervoltage release, no voltage trigger, and no ground-fault monitoring version — the protection logic lives entirely in the ETU550. ## Panel fit and environment Dimensions are 248 mm high, 184 mm wide, and 110 mm deep. Maximum power loss is 99 W, which should be factored into enclosure thermal calculations, especially in a multi-breaker lineup.","metaTitle":"Siemens 3VA2450-7JP42-0AA0 SENTRON MCCB, 500 A, 4-Pole, ETU5","metaDescription":"Siemens SENTRON 3VA2450-7JP42-0AA0 molded case circuit breaker, 500 A rated, 4-pole, ETU550 electronic trip unit, 330 kA at 240 V. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"110 mm","Width":"184 mm","Height":"248 mm","at 240 V":"330 kA","at 415 V":"242 kA","at 440 V":"242 kA","at 500 V":"187 kA","at 690 V":"9 kA","at 40 °C":"500 A","at 45 °C":"500 A","at 50 °C":"500 A","at 55 °C":"477 A","at 60 °C":"455 A","at 65 °C":"432 A","at 70 °C":"410 A","Depth [In]":"4.33 in","Width [In]":"7.24 in","Height [In]":"9.76 in","Limited To 1 S":"6 kA","Trip Indicator":"No","Number Of Poles":"4","Product version":"Line protection","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Communication Function":"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","Courant permanent assigné Iu":"500 A","Ground-Fault Monitoring Version":"Without","Tension assignée d'isolement Ui":"800 V","Design Of The Overcurrent Release":"ETU550","protection class IP / on the front":"IP40","reference code / acc. to IEC 81346-2":"Q","at AC / limited to 0.5 s / rated value":"6 kA","Product Extension / Optional / Motor Drive":"Yes","Adjustable response value current / li max.":"7 000 A","Adjustable response value current / li min.":"750 A","Neutral conductors / upgradeable/retrofittable":"No","Protection Function Of The Overcurrent Release":"LSI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"C","Max. rated operational current of the frame size":"630 A","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","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"35 x 10 mm","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"20 x 1 mm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/cdfe18fbae3cb379c606d92303f9625e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=229267&mlfb=3VA2450-7JP42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2450-7JP42-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2450-7JP42-0AA0 and how do I get a price?","answer":"This MCCB is sourced and quoted to order against an RFQ through independent distribution. Submit a request for a firm price and availability confirmation."},{"question":"What is the breaking capacity of 3VA2450-7JP42-0AA0 at 240 V?","answer":"330 kA at 240 V, which is exceptionally high — suitable for high-fault-current installations like transformer secondaries or large industrial services."},{"question":"What trip unit does this MCCB use?","answer":"The ETU550 electronic trip unit with adjustable long-time, short-time, instantaneous, and ground-fault protection curves, plus built-in communication capability."},{"question":"What are the mounting dimensions of 3VA2450-7JP42-0AA0?","answer":"248 mm high, 184 mm wide, 110 mm deep. The 184 mm width is standard for a 4-pole frame at this rating."},{"question":"Does this breaker include an undervoltage release or ground-fault monitoring?","answer":"No — it carries no undervoltage release, no voltage trigger, and no ground-fault monitoring version. Protection logic is entirely within the ETU550 trip unit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2450-7JP42-0AA0","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/3VA2450-7JP42-0AA0 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}}