{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2450-7MN32-0AC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2450-7MN32-0AC0","canonicalUrl":"https://aoctrl.com/siemens/3VA2450-7MN32-0AC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2450-7MN32-0AC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2450-7MN32-0AC0, molded case circuit breaker, 500 A, 3-pole, ETU350M, motor protection version with phase failure detection.","salesMarkdown":"## What this 500 A MCCB does in a motor circuit The Siemens 3VA2450-7MN32-0AC0 is a 3-pole molded case circuit breaker from the SENTRON family, rated 500 A continuous current across 40–50 °C ambient — it holds full rating up to 50 °C before the first derate step at 55 °C (495 A). That thermal stability makes it a solid pick for a warm panel in a motor control center where smaller breakers would already be downrating. It carries a motor protection designation, meaning the ETU350M electronic trip unit is configured for the inrush and overload profile of induction motors — not just thermal-magnetic instantaneous-only. ## Interrupting capacity — where the headroom matters The interrupting ratings span the common industrial voltages: 330 kA at 240 V AC, 242 kA at 415 V and 440 V, and 52.5 kA at 690 V. That simplifies coordination in a main lug or main breaker panel. Dimensions are 248 mm height, 138 mm width, 110 mm depth — a standard 3-pole frame size for the 3VA2 platform.","metaTitle":"Siemens 3VA2450-7MN32-0AC0 SENTRON MCCB, 500 A, Motor Protec","metaDescription":"Siemens SENTRON 3VA2450-7MN32-0AC0 molded case circuit breaker, 500 A rated current, ETU350M trip unit, 3-pole, motor protection, 330 kA at 240 V. 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":"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":"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":"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 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":"Without auxiliary release","Ground fault monitoring version":"Without","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":"3VA9988-0AA12","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=570142&mlfb=3VA2450-7MN32-0AC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2450-7MN32-0AC0/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting capacity of this MCCB at 415 V?","answer":"242 kA at 415 V AC, which is the same rating as at 440 V. At 690 V it drops to 52.5 kA."},{"question":"Does this breaker include phase failure protection?","answer":"Yes, phase failure detection is standard on this motor protection version. It will trip on a lost phase."},{"question":"Where can I buy 3VA2450-7MN32-0AC0 and how is it quoted?","answer":"This Siemens SENTRON MCCB is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commercial offer."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2450-7MN32-0AC0","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/3VA2450-7MN32-0AC0 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}}