{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-5JQ32-0AE0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-5JQ32-0AE0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-5JQ32-0AE0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5JQ32-0AE0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-5JQ32-0AE0, molded case circuit breaker, 3-pole, 400 A, 187 kA at 240 V, line protection, with communication function.","salesMarkdown":"The 3VA2340-5JQ32-0AE0 is a SENTRON molded case circuit breaker rated for line protection, carrying 187 kA interrupting capacity at 240 V and 121 kA at 415 V. At 690 V the rating drops to 7.5 kA — the arc extinction physics change above 500 V, so verify your fault-current study against the voltage-specific curve before committing this breaker to a high-impedance ground or 690 V bus. The thermal-magnetic trip is adjustable from 600 A minimum to 4 000 A maximum, with a full-scale value of 400 A. That 400 A figure is the continuous current rating at 40 °C through 50 °C; at 55 °C derate to 375 A, at 60 °C to 350 A, at 65 °C to 325 A, and at 70 °C to 300 A. ## Panel integration and auxiliaries Footprint is 138 mm wide by 248 mm tall by 110 mm deep — a 3-pole frame that fits standard MCCB mounting plates. The breaker ships with 4 auxiliary switches (HQ configuration) and no undervoltage or shunt release; if your safety circuit requires a UVR, order the auxiliary release separately and verify the slot compatibility. Communication function is built in — the listing flags a yes on comms, so this variant includes the electronic trip unit with Modbus or PROFIBUS capability (confirm protocol via the order code suffix). Maximum power loss is 96 W at rated current; account for that heat in your enclosure ventilation calculation.","metaTitle":"Siemens 3VA2340-5JQ32-0AE0 SENTRON MCCB, 400 A, 187 kA at 24","metaDescription":"Siemens SENTRON 3VA2340-5JQ32-0AE0 molded case circuit breaker, 400 A rated, 187 kA breaking at 240 V. Active production, sourced to order. Request 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","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":"No","Design Of The Product":"Line protection","Communication Function":"Yes","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"96 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":"4 auxiliary switches HQ","Design Of The Auxiliary Release":"Without auxiliary release","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%","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":"4","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","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=34126&mlfb=3VA2340-5JQ32-0AE0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5JQ32-0AE0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity at 415 V?","answer":"121 kA at 415 V, matching the 121 kA at 440 V rating. At 500 V it drops to 75.6 kA, and at 690 V to 7.5 kA."},{"question":"Where can I buy 3VA2340-5JQ32-0AE0 and get a price?","answer":"This part is sourced and quoted 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."},{"question":"Does this breaker include communication?","answer":"Yes, the listing confirms a communication function is present. The electronic trip unit supports fieldbus connectivity — verify the exact protocol (Modbus or PROFIBUS) from the full order code suffix."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-5JQ32-0AE0","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/3VA2340-5JQ32-0AE0 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}}