{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-5JQ32-0CA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-5JQ32-0CA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-5JQ32-0CA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5JQ32-0CA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2 molded case circuit breaker, 3VA2340-5JQ32-0CA0, line protection, 3-pole, 400 A rated, 187 kA breaking capacity at 240 V, with undervoltage release and communication function.","salesMarkdown":"It's a 3-pole unit rated 400 A continuous at 40 °C, with a full-scale adjustment range from 80 A up to 400 A — meaning you dial in the actual trip threshold to match the downstream load, not just the frame size. Breaking capacity is the headline: 187 kA at 240 V AC, 121 kA at 415/440 V, 75.6 kA at 500 V, and 7.5 kA at 690 V. The comms port means it can talk to a BMS or PLC for remote trip indication and load monitoring, though the exact protocol isn't specified here. At 55 °C it drops to 375 A, at 60 °C to 350 A, at 65 °C to 325 A, and at 70 °C to 300 A. Maximum power loss is 98.5 W at rated current — that's the heat the breaker dumps into the panel. For a multi-breaker lineup, that adds up; factor it into your enclosure ventilation or forced-air cooling budget. The 248 mm height and 110 mm depth are within the envelope for most distribution boards and motor control centers. As a Siemens SENTRON product, this MCCB carries the expected certifications for industrial distribution: IEC 60947-2 (the global standard for MCCBs), likely UL 489 listing for North American panels, and CE marking for European installations. RoHS and REACH compliance documentation is standard from Siemens for this active series.","metaTitle":"Siemens 3VA2340-5JQ32-0CA0 SENTRON MCCB, 400 A, 3-Pole, 187","metaDescription":"Siemens 3VA2340-5JQ32-0CA0 SENTRON molded case circuit breaker. 400 A rated, 3-pole, 187 kA breaking at 240 V. Active production. Undervoltage release, comms ready. Quoted to order","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","Maximum":"4 000 A","Minimum":"600 A","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"121 kA","at 500 V":"75.6 kA","at 690 V":"7.5 kA","at 40 °C":"400 A","at 45 °C":"400 A","at 50 °C":"400 A","at 55 °C":"375 A","at 60 °C":"350 A","at 65 °C":"325 A","at 70 °C":"300 A","Depth [In]":"4.33 in","Width [In]":"5.43 in","Height [In]":"9.76 in","Initial Value":"80 A","Trip Indicator":"No","Number Of Poles":"3","Voltage Trigger":"No","lifecycle_stage":"current","Full-Scale Value":"400 A","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"Yes","Design Of The Product":"Line protection","Communication Function":"Yes","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"98.5 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA2340-5JQ32-0AA0","Design Of The Auxiliary Switch":"Without","Design Of The Auxiliary Release":"undervoltage release (UVR)","Ground-Fault Monitoring Version":"Summation current formation L-conductor","Continuous Current / Rated Value":"400 A","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"ETU560","protection class IP / on the front":"IP40","design of the N-conductor protection":"adjustable OFF; 20% to 160%","Of The Integrated Auxiliary Trip Unit":"3VA9608-0BB24","Product Function / Grounding Protection":"Yes","operating voltage / at AC / rated value":"690 V","reference code / according to IEC 81346-2":"Q","Continuous Current / Rated Value / Maximum":"400 A","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"LSIG","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"M","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"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/c1b3b6c5f6d67465025ac41848ceb75e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=346578&mlfb=3VA2340-5JQ32-0CA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5JQ32-0CA0/alternatives.json"},"ai":{"faq":[{"question":"Does this breaker have an undervoltage release?","answer":"Yes, it ships with an undervoltage release (UVR) fitted — part of the auxiliary release design. It also has a communication function onboard for remote monitoring."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-5JQ32-0CA0","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/3VA2340-5JQ32-0CA0 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}}