{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-5JQ32-0DH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-5JQ32-0DH0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-5JQ32-0DH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5JQ32-0DH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-5JQ32-0DH0, molded case circuit breaker, 3-pole, 400 A rated at 40 °C, adjustable thermal-magnetic trip 600–4000 A, 187 kA SCCR at 240 V, line protection design, undervoltage release, communication function.","salesMarkdown":"The Siemens SENTRON 3VA2340-5JQ32-0DH0 is a 3-pole molded case circuit breaker rated 400 A at 40 °C with an adjustable thermal-magnetic trip range of 600 A minimum to 4 000 A maximum — meaning you set the pickup to match the feeder or branch load, not the other way around. Its interrupting capacity hits 187 kA at 240 V, drops to 121 kA at 415 V and 440 V, then 75.6 kA at 500 V, and 7.5 kA at 690 V — so the SCCR you need for the fault-current study determines which voltage column you read. Designed for line protection, it includes an undervoltage release and a communication function for remote monitoring or trip-signal integration into a BMS or PLC. At 55 °C it derates to 375 A, at 60 °C to 350 A, at 65 °C to 325 A, and at 70 °C to 300 A — so a panel running hot near the top of the enclosure loses 25 % of the rated current. The 98.5 W max power loss contributes to the internal heat rise — account for it in the thermal budget. ## Auxiliary and alarm switching — what the HQ suffix means The basic switch variant is 3VA2340-5JQ32-0AA0 — if you see that code, it is the same frame and trip but without the aux/alarm block. The -0DH0 suffix adds the HQ aux block and the undervoltage release.","metaTitle":"Siemens 3VA2340-5JQ32-0DH0 SENTRON MCCB, 400 A, 600–4000 A t","metaDescription":"Siemens SENTRON 3VA2340-5JQ32-0DH0 molded case circuit breaker, 400 A rated at 40 °C, adjustable trip 600–4000 A, SCCR 187 kA at 240 V. Current production. 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":"Yes","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":"2 auxiliary switches + 1 trip alarm switch HQ","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":"3VA9608-0BB25","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":"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=140146&mlfb=3VA2340-5JQ32-0DH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5JQ32-0DH0/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-5JQ32-0DH0","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/3VA2340-5JQ32-0DH0 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}}