{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-6JQ32-0CA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-6JQ32-0CA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-6JQ32-0CA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-6JQ32-0CA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-6JQ32-0CA0, 3-pole molded case circuit breaker, 400 A frame, 242 kA interrupting at 240 V, line protection with undervoltage release and communication function.","salesMarkdown":"## What the interrupting ratings mean for your coordination study The continuous current rating holds at 400 A from 40 °C through 50 °C (–), then derates to 375 A at 55 °C, 350 A at 60 °C, 325 A at 65 °C, and 300 A at 70 °C. That derating curve is the one that governs the real panel loading, not the frame size. The breaker measures 248 mm high by 138 mm wide by 110 mm deep (–). The 138 mm width (5.43 in) for a 3-pole frame is typical for this class; verify the mounting footprint against the existing panel cutout or DIN-rail adapter if retrofitting into an older board. ## Built-in undervoltage release and communication This means if the control voltage feeding the UVR coil drops below its dropout threshold, the breaker trips — standard for applications where a loss of control power must also disconnect the load (e.g., emergency stop circuits or safety-related disconnects). A communication function is present, which allows integration with a higher-level monitoring or SCADA system for trip status and load data. The basic switch variant is listed as 3VA2340-6JQ32-0AA0, confirming this -0CA0 suffix carries the UVR and communication options.","metaTitle":"Siemens 3VA2340-6JQ32-0CA0 SENTRON MCCB, 400 A, 3-Pole, 242","metaDescription":"Siemens SENTRON 3VA2340-6JQ32-0CA0 molded case circuit breaker, 400 A, 3-pole, 242 kA at 240 V interrupting rating. Active production. Sourced 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":"242 kA","at 415 V":"187 kA","at 440 V":"187 kA","at 500 V":"121 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":"3VA2340-6JQ32-0AA0","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":"H","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=180534&mlfb=3VA2340-6JQ32-0CA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-6JQ32-0CA0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA2340-6JQ32-0CA0?","answer":"Submit an RFQ through this listing. We source the part to order against your quote request; availability and current pricing are confirmed at quote time."},{"question":"What are the key interrupting ratings for 3VA2340-6JQ32-0CA0?","answer":"The breaker is rated 242 kA at 240 V, 187 kA at 415 V and at 440 V, 121 kA at 500 V, and 7.5 kA at 690 V (–). These are the symmetrical interrupting capacities; your system's available fault current must be below these values at the respective voltage."},{"question":"Will 3VA2340-6JQ32-0CA0 drop into a panel specified around 5SQ2370-2YA05 without rewiring?","answer":"The 5SQ2370-2YA05 is a different Siemens series with a different mounting footprint and accessory layout. The 3VA2340-6JQ32-0CA0 is a SENTRON 3VA frame; it does not share the same cutout or bus-bar connection pattern as the 5SQ series. Panel rework — at minimum a new mounting adapter and bus connections — is required for a direct swap."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-6JQ32-0CA0","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/3VA2340-6JQ32-0CA0 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}}