{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-5HL42-0DC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-5HL42-0DC0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-5HL42-0DC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5HL42-0DC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-5HL42-0DC0, molded case circuit breaker, 4-pole, 400 A continuous, 187 kA at 240 V, undervoltage release, line protection.","salesMarkdown":"The Siemens SENTRON 3VA2340-5HL42-0DC0 is a 4-pole molded case circuit breaker rated for 400 A continuous current at 40 °C, holding that rating through 50 °C before derating to 385 A at 55 °C and 340 A at 70 °C. At 240 V it interrupts 187 kA, at 415 V and 440 V it delivers 121 kA, at 500 V it provides 75.6 kA, and at 690 V it handles 7.5 kA — the breaking capacity drops sharply above 500 V, so verify the available fault current at your system voltage. The 400 A frame means this breaker is sized for main feeders or large motor branch circuits in industrial distribution. The 110 mm depth, 184 mm width, and 248 mm height fit standard panel layouts — measure your enclosure depth to confirm clearance for the 110 mm projection and the cable bending radius for 400 A terminations. The 4-pole design requires four conductors for the main circuit plus control wiring for the undervoltage release and auxiliary switches. Power loss is 98.5 W maximum — account for this heat in the enclosure thermal calculation, especially when the breaker is loaded near its 400 A rating in a sealed cabinet.","metaTitle":"Siemens 3VA2340-5HL42-0DC0 MCCB, 400 A, 4-Pole, 187 kA at 24","metaDescription":"Siemens SENTRON 3VA2340-5HL42-0DC0 molded case circuit breaker, 400 A continuous, 4-pole, 187 kA breaking capacity at 240 V. Current 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":"184 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]":"7.24 in","Height [In]":"9.76 in","Trip Indicator":"No","Number Of Poles":"4","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":"3VA2340-5HL42-0AA0","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","design of the N-conductor protection":"adjustable OFF; 50%; 100%","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=476280&mlfb=3VA2340-5HL42-0DC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5HL42-0DC0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA2340-5HL42-0DC0?","answer":"Submit an RFQ through this listing; availability and current pricing are confirmed at quote time through our independent distribution network."},{"question":"What is the breaking capacity of 3VA2340-5HL42-0DC0 at 415 V?","answer":"121 kA at 415 V, and the same at 440 V; at 500 V it drops to 75.6 kA, and at 690 V to 7.5 kA."},{"question":"What compliance documentation does this breaker carry?","answer":"As a Siemens SENTRON MCCB, it is designed to meet IEC 60947-2 and UL 489 standards; RoHS and REACH declarations are available from Siemens on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-5HL42-0DC0","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/3VA2340-5HL42-0DC0 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}}