{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-6JQ32-0JH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-6JQ32-0JH0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-6JQ32-0JH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-6JQ32-0JH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-6JQ32-0JH0, molded case circuit breaker, 3-pole, 400 A at 40 °C, 242 kA at 240 V, line protection, shunt trip, 2 aux + 1 trip alarm switch.","salesMarkdown":"## What this 400 A MCCB delivers — and what to watch Interrupting capacity is the real selector here: 242 kA at 240 V, 187 kA at 415/440 V, 121 kA at 500 V, and 7.5 kA at 690 V. That 242 kA figure at 240 V means it can sit on a high-fault transformer secondary without cascading upstream — useful for a main breaker in a 240 V delta or 277/480 V wye panel where the available fault current is north of 100 kA. This is a line-protection design (not motor-protection), so the trip curve is set for cable and bus protection. Dimensions: 248 mm height, 138 mm width, 110 mm depth — that's a 9.76 x 5.43 x 4.33 inch footprint. Power loss is 96 W maximum at rated current. That's not trivial — in a sealed, non-ventilated enclosure, that heat has to be factored into the thermal budget. If you are packing multiple breakers side by side, derate per the manufacturer's grouping factors or add forced ventilation.","metaTitle":"Siemens 3VA2340-6JQ32-0JH0 SENTRON MCCB, 400 A, 242 kA","metaDescription":"Siemens SENTRON 3VA2340-6JQ32-0JH0 molded case circuit breaker, 400 A rated at 40 °C, 242 kA interrupting at 240 V. 3-pole, line protection, shunt trip + aux switches. Active produ","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":"Yes","Number Of Poles":"3","Voltage Trigger":"Yes","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":"3VA2340-6JQ32-0AA0","Design Of The Auxiliary Switch":"2 auxiliary switches + 1 trip alarm switch HQ","Design Of The Auxiliary Release":"shunt trip (STL)","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":"3VA9688-0BL32","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":"3","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","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=183598&mlfb=3VA2340-6JQ32-0JH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-6JQ32-0JH0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2340-6JQ32-0JH0 and what is the lead time?","answer":"This part is sourced and quoted to order through independent distribution. Availability and current pricing are confirmed at quote time against an RFQ — no stock count or lead-time figure is published here."},{"question":"What is the interrupting capacity at 240 V?","answer":"242 kA at 240 V, which covers high-fault transformer secondaries without cascading upstream."},{"question":"Does this breaker include a shunt trip and auxiliary switches?","answer":"Yes, it ships with a shunt trip (STL), two auxiliary switches, and one trip-alarm switch (HQ). The alarm contact closes only on a fault trip."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-6JQ32-0JH0","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/3VA2340-6JQ32-0JH0 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}}