{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2450-5MN32-0JL0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2450-5MN32-0JL0","canonicalUrl":"https://aoctrl.com/siemens/3VA2450-5MN32-0JL0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2450-5MN32-0JL0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2450-5MN32-0JL0, molded case circuit breaker, 3-pole, 500 A, motor protection version, ETU350M electronic trip unit, 110 mm depth, 138 mm width, 248 mm height.","salesMarkdown":"## What this MCCB is and what it does The Siemens 3VA2450-5MN32-0JL0 is a SENTRON-series molded case circuit breaker (MCCB) in a motor-protection variant, rated for 500 A continuous current (Iu) across a 3-pole configuration. Its ETU350M electronic trip unit provides adjustable overload and short-circuit protection with phase-failure detection, making it a direct fit for motor branch circuits where standard thermal-magnetic breakers lack the precision or coordination flexibility needed. ## Breaking capacity — what the numbers mean for your coordination study This breaker carries a short-circuit breaking capacity of 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. That 187 kA figure at 240 V is the headline number for low-voltage fault duty — it tells you this frame can interrupt a fault up to that level without bursting, which matters when you're coordinating downstream with a transformer secondary or a high-capacity bus. At 690 V the 17 kA rating drops significantly, so verify your available fault current at that voltage before specifying. ## Thermal derating and panel integration The breaker is rated for full 500 A continuous current up to 50 °C ambient. Above that, it derates linearly: 495 A at 55 °C, 490 A at 60 °C, 485 A at 65 °C, and 480 A at 70 °C. If your panel ambient runs hot — say, a packed enclosure with drives — you need to account for that 20 A drop at 70 °C. The 138 mm width and 110 mm depth fit a standard MCCB footprint; plan for 99 W maximum power loss in your thermal budget.","metaTitle":"Siemens 3VA2450-5MN32-0JL0 SENTRON MCCB, 500A, 3P, Motor Pro","metaDescription":"Siemens 3VA2450-5MN32-0JL0 SENTRON molded case circuit breaker, 500A rated continuous current, 3-pole, motor protection with ETU350M trip unit. SCCR 187kA at 240V. Current producti","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 + 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":"3VA2450-5MN32-0AA0","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":"4","Protective function of the overcurrent release":"LSI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB22","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=570136&mlfb=3VA2450-5MN32-0JL0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2450-5MN32-0JL0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2450-5MN32-0JL0 and how is it quoted?","answer":"This MCCB is sourced and quoted to order against an RFQ through independent industrial-automation distribution. Availability and current pricing are confirmed at quote time — submit a request with your quantity and target delivery window."},{"question":"What are the key ratings for 3VA2450-5MN32-0JL0?","answer":"Rated continuous current Iu is 500 A, rated insulation voltage Ui is 800 V, and short-circuit breaking capacity ranges from 187 kA at 240 V down to 17 kA at 690 V. The ETU350M electronic trip unit provides adjustable protection with phase-failure detection."},{"question":"What is the physical size of 3VA2450-5MN32-0JL0?","answer":"Width is 138 mm, depth is 110 mm, and height is 248 mm. This fits a standard MCCB panel footprint with DIN-rail or screw-mount options."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2450-5MN32-0JL0","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/3VA2450-5MN32-0JL0 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}}