{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2450-5MN32-0JH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2450-5MN32-0JH0","canonicalUrl":"https://aoctrl.com/siemens/3VA2450-5MN32-0JH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2450-5MN32-0JH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON molded case circuit breaker, 3VA2450-5MN32-0JH0, 3-pole, motor protection version, 500 A rated continuous current (Iu), ETU350M electronic overcurrent release, 187 kA interrupting capacity at 240 V AC.","salesMarkdown":"## MCCB for motor branch circuits — interrupting capacity and thermal derating It uses the ETU350M electronic overcurrent release with phase failure detection, making it suitable for protecting motor feeders where a tripping curve matched to motor inrush is required. The interrupting ratings are substantial: 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 — so it handles high-fault-current scenarios at distribution-level voltages without cascading upstream. Note the thermal derating: the breaker carries its full 500 A from 40 °C through 50 °C, then drops to 495 A at 55 °C, 490 A at 60 °C, and 485 A at 65 °C. At 70 °C ambient it still holds 480 A. That derating curve matters when the breaker is enclosed in a warm panel or mounted near other heat sources. ## Auxiliary and trip configuration The basic switch supplied as the core is order code 3VA2450-5MN32-0AA0; the integrated auxiliary trip is 3VA9688-0BL32. The maximum power loss is 99 W, which factors into thermal management inside the enclosure. ## Physical footprint and environmental limits Dimensions are 138 mm wide by 248 mm high by 110 mm deep. That 110 mm depth is the overall body depth — important for shallow enclosure fit.","metaTitle":"Siemens 3VA2450-5MN32-0JH0 SENTRON MCCB, 500 A, 187 kA at 24","metaDescription":"Siemens SENTRON 3VA2450-5MN32-0JH0 molded case circuit breaker, 3-pole, 500 A rated, motor protection with ETU350M release. 187 kA interrupting at 240 V. Active production, sourced","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":"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":"3VA2450-5MN32-0AA0","Design of the auxiliary release":"Shunt trip (STL)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9688-0BL32","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":"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=570135&mlfb=3VA2450-5MN32-0JH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2450-5MN32-0JH0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2450-5MN32-0JH0 and how is it quoted?","answer":"This part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock or price figures are published here."},{"question":"What are the key interrupting ratings for this MCCB?","answer":"At 240 V it interrupts 187 kA; at 415 V and 440 V it interrupts 121 kA; at 500 V it interrupts 75.6 kA; at 690 V it interrupts 17 kA."},{"question":"Does the 3VA2450-5MN32-0JH0 include phase failure detection?","answer":"Yes, the ETU350M electronic overcurrent release includes phase failure detection, which is standard for motor protection versions."},{"question":"What auxiliary contacts are fitted on this breaker?","answer":"It comes with 2 auxiliary switches plus 1 trip alarm switch (HQ configuration), and a shunt trip (STL) auxiliary release."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2450-5MN32-0JH0","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/3VA2450-5MN32-0JH0 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}}