{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2440-5HK42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2440-5HK42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2440-5HK42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2440-5HK42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2440-5HK42-0AA0, molded case circuit breaker, 4-pole, 400 A at 40 °C, ETU340 electronic trip unit, 187 kA interrupting at 240 V, IP40 front.","salesMarkdown":"The Siemens SENTRON 3VA2440-5HK42-0AA0 is a 4-pole molded case circuit breaker rated for continuous 400 A at 40 °C ambient, with the ETU340 electronic trip unit governing the protection curve. That 400 A holds flat through 50 °C; at 55 °C it derates to 384 A, and at 70 °C to 340 A — so if your enclosure runs hot, the real continuous capacity drops. The interrupting ratings are the headline here: 187 kA at 240 V, 121 kA at 415 V and 440 V, 76 kA at 500 V, and 10.2 kA at 690 V. The ETU340 trip unit gives adjustable long-time pickup (Ir) from 1500 A to 4000 A and short-time (Ii) fixed at 6000 A, with N-conductor protection configurable OFF, 50%, or 100% of phase setting. The breaker measures 184 mm wide, 248 mm high, and 110 mm deep — a 4-pole frame that needs a solid 184 mm of DIN-rail or mounting-plate width. The optional motor drive (listed as a product extension) allows remote racking, useful for automated disconnection in larger lineups. With the ETU340's adjustable long-time and fixed short-time pickup, you can coordinate this breaker downstream of a larger SENTRON or upstream of smaller branch MCCBs. The 187 kA at 240 V gives plenty of headroom for most industrial service entrances; the 10.2 kA at 690 V is more modest, so check your available fault current if you're on a 690 V system.","metaTitle":"Siemens 3VA2440-5HK42-0AA0 SENTRON MCCB, 400A, 4-Pole, ETU34","metaDescription":"Siemens SENTRON 3VA2440-5HK42-0AA0 molded case circuit breaker, 400 A at 40 °C, 4-pole, ETU340 electronic trip, 187 kA at 240 V. Current lifecycle. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"110 mm","Width":"184 mm","title":"3VA2440-5HK42-0AA0","Height":"248 mm","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"121 kA","at 500 V":"76 kA","at 690 V":"10.2 kA","at 40 °C":"400 A","at 45 °C":"400 A","at 50 °C":"400 A","at 55 °C":"384 A","at 60 °C":"372 A","at 65 °C":"356 A","at 70 °C":"340 A","Depth [In]":"4.3 in","Width [In]":"7.2 in","Height [In]":"9.8 in","description":"circuit breaker 3VA2 IEC frame 630 breaking capacity class M Icu=55kA @ 415V 4-pole, line protection ETU340, ELISA LI, In=400A overload protection Ir=160A...400A short-circuit protection Ii=15 x In N conductor protection adjustable (OFF, 50%, 100%) nut keeper kit","Number Of Poles":"4","Product version":"Line protection","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"63.3 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Ground-Fault Monitoring Version":"Without","Tension assignée d'isolement Ui":"800 V","Design Of The Overcurrent Release":"ETU340","protection class IP / on the front":"IP40","design of the N-conductor protection":"adjustable OFF; 50%; 100%","reference code / acc. to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"Yes","Adjustable response value current / lg min.":"1500","Adjustable response value current / li max.":"6 000 A","Adjustable response value current / li min.":"6 000 A","Neutral conductors / upgradeable/retrofittable":"No","Protection Function Of The Overcurrent Release":"ELISA LI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"M","Mechanical Service Life (Switching Cycles) / Typical":"15 000","Type Of Electrical Connection / For Main Current Circuit":"on both sides nut keeper kit","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front terminal","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"35 x 10 mm","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"20 x 1 mm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/0eb36652ce522f093395d6bd0dd27e34.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=568772&mlfb=3VA2440-5HK42-0AA0"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2440-5HK42-0AA0","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/3VA2440-5HK42-0AA0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}