{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-5JQ32-0CC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-5JQ32-0CC0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-5JQ32-0CC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5JQ32-0CC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-5JQ32-0CC0, molded case circuit breaker, 3-pole, 400 A rated, 187 kA interrupting at 240 V, line protection design with undervoltage release and communication function.","salesMarkdown":"The Siemens SENTRON 3VA2340-5JQ32-0CC0 is a 3-pole molded case circuit breaker rated 400 A at 40 °C, with a full-scale setting of 400 A and an initial trip threshold of 80 A. It's designed for line protection and includes an undervoltage release (UVR) plus two HQ auxiliary switches. The interrupting capacity hits 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 7.5 kA at 690 V — so it handles high-fault utility feeds and transformer secondaries without cascading upstream. Thermal derating is published across the full range: 400 A continuous through 50 °C, then 375 A at 55 °C, 350 A at 60 °C, 325 A at 65 °C, and 300 A at 70 °C. That's the curve you need if the breaker lives in a non-air-conditioned switchroom or near a transformer. ## Panel fit and footprint That 110 mm depth is the key clearance number for shallow backpanels or enclosure-mounted bus stacks — measure your gutter depth before committing the BOM line. Maximum power loss is 98.5 W, so factor that into your enclosure thermal budget if the panel is sealed or has limited venting. ## Auxiliaries and communication Comes with a built-in undervoltage release (UVR) and two HQ auxiliary switches. Communication function is integrated, so it can report status or accept remote commands over the SENTRON bus system. The basic switch variant is 3VA2340-5JQ32-0AA0 — same frame, same trip unit, without the auxiliaries and UVR. If you're stocking a bare breaker for spares and adding auxiliaries in the field, that's the SKU to cross-reference.","metaTitle":"Siemens 3VA2340-5JQ32-0CC0 SENTRON MCCB, 400 A, 3-Pole","metaDescription":"Siemens SENTRON 3VA2340-5JQ32-0CC0 molded case circuit breaker, 400 A rated, 3-pole, 187 kA at 240 V. Active 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":"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":"2 auxiliary switches 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":"3VA9608-0BB24","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":"2","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=311599&mlfb=3VA2340-5JQ32-0CC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5JQ32-0CC0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2340-5JQ32-0CC0 and get a price?","answer":"This part is sourced to order through independent distribution channels. Submit an RFQ for current availability and pricing — confirmed at quote time, no stock count or price listed here."},{"question":"What are the key interrupting ratings for 3VA2340-5JQ32-0CC0?","answer":"187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 7.5 kA at 690 V. That covers most industrial service-entrance and distribution applications."},{"question":"What is the depth of 3VA2340-5JQ32-0CC0?","answer":"110 mm (4.33 in). That's the dimension from the mounting plane to the front of the breaker — critical for shallow enclosures."},{"question":"Does this MCCB include an undervoltage release?","answer":"Yes, it ships with an undervoltage release (UVR) and two HQ auxiliary switches as standard."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-5JQ32-0CC0","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/3VA2340-5JQ32-0CC0 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}}