{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-5HL32-0DC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-5HL32-0DC0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-5HL32-0DC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5HL32-0DC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-5HL32-0DC0, molded case circuit breaker, 3-pole, 400 A, 187 kA interrupting at 240 V, line protection design with undervoltage release and 2 auxiliary switches.","salesMarkdown":"The Siemens SENTRON 3VA2340-5HL32-0DC0 is a 3-pole molded case circuit breaker rated 400 A continuous at 40 °C, with a maximum interrupting capacity of 187 kA at 240 V. At 415 V and 440 V the SCCR holds at 121 kA; at 690 V it drops to 7.5 kA, so for 690 V applications verify the available fault current stays under that threshold. The continuous current rating is flat at 400 A from 40 °C through 50 °C, then derates linearly to 340 A at 70 °C. That thermal curve is the one that governs real-world panel loading — if your enclosure ambient runs at 60 °C, plan for 370 A, not 400 A. The breaker measures 248 mm high by 138 mm wide by 110 mm deep — a standard footprint for a 400 A frame in the SENTRON 3VA platform. It mounts via four screws to a backplate or DIN-rail adapter (not included); the 138 mm width leaves room for side-by-side mounting in a multi-breaker lineup, though thermal derating should be recalculated when breakers are ganged without spacing. Maximum power loss is 98.5 W at rated load — that heat must be vented or accounted for in the enclosure's thermal budget.","metaTitle":"Siemens 3VA2340-5HL32-0DC0 SENTRON MCCB, 400 A, 3-pole, 187","metaDescription":"Siemens SENTRON 3VA2340-5HL32-0DC0 molded case circuit breaker, 400 A continuous, 3-pole, 187 kA at 240 V. Active production. Sourced to order against 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":"385 A","at 60 °C":"370 A","at 65 °C":"355 A","at 70 °C":"340 A","Depth [In]":"4.33 in","Width [In]":"5.43 in","Height [In]":"9.76 in","Trip Indicator":"No","Number Of Poles":"3","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"Yes","Design Of The Product":"Line protection","Communication Function":"No","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":"3VA2340-5HL32-0AA0","Design Of The Auxiliary Switch":"2 auxiliary switches HQ","Design Of The Auxiliary Release":"undervoltage release (UVR)","Ground-Fault Monitoring Version":"Without","Continuous Current / Rated Value":"400 A","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"ETU320","protection class IP / on the front":"IP40","Of The Integrated Auxiliary Trip Unit":"3VA9608-0BB25","Product Function / Grounding Protection":"No","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":"LI","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=249210&mlfb=3VA2340-5HL32-0DC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5HL32-0DC0/alternatives.json"},"ai":{"faq":[{"question":"What does the undervoltage release do on this MCCB?","answer":"The undervoltage release (UVR) trips the breaker when the control voltage drops below a set threshold — used for emergency stop circuits or to prevent automatic reclosing after a power loss."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-5HL32-0DC0","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/3VA2340-5HL32-0DC0 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}}